

 
Small Business Tax Benefits: Current Law  
Updated November 10, 2021 
Congressional Research Service 
https://crsreports.congress.gov 
RL32254 
 
  
 
Small Business Tax Benefits: Current Law  
 
Summary 
The federal tax burden on small firms and its effects on their formation and growth have long 
been matters of concern for Congress. This abiding interest has contributed to the enactment of 
targeted tax relief for a number of small businesses. 
This report describes the main federal tax benefits for small firms. More specifically, its scope is 
restricted to tax preferences available only to small firms in a wide range of industries. As such, 
the report does not include tax benefits targeted at small firms in specific industries, such as the 
special deduction for small life insurance companies under Internal Revenue Code (IRC) Section 
806. Nor does the report address tax provisions that benefit many small firms in a range of 
industries but are available to firms of all sizes, such as the research tax credit under IRC Section 
41 and the Section 199A. 
The following small business tax benefits are examined here:  
  expensing allowance for machinery and equipment under IRC Section 179;  
  cash-basis accounting under IRC Section 446;  
  tax credit for the start-up costs incurred by small firms in establishing qualified 
employee retirement plans under IRC Section 45E;  
  tax credit for employers who offer or start a 401(k) plan or a Savings Incentive 
Match Plan for Employees (SIMPLE) that add automatic enrollment under IRC 
45T; 
  tax credit for the costs incurred by small firms in complying with the Americans 
with Disabilities Act under IRC Section 44;  
  full exclusion from the capital gains tax on the sale or exchange of qualified 
small business stock under IRC Section 1202;  
  exemption from the limitation on the deduction for business interest expenses 
under IRC Section 163; 
  tax credit for small firms that offer qualified health insurance coverage to 
employees under IRC Section 45R;  
  simplified dollar-value last-in-first-out accounting under IRC Section 474; 
  deduction and amortization of business start-up expenses under IRC Section 
195; 
  ordinary income treatment of losses on the sale of eligible small business stock 
under IRC Section 1244; 
  ordinary loss treatment for loses on the sale of Small Business Investment 
Company stock under IRC Section 1242; 
  exemption from the uniform capitalization rule under IRC Section 263A; and 
  use of excess research tax credit to reduce the payroll tax liability of qualified 
small firms under IRC Section 41. 
While available information does not allow for a precise estimate of the foregone federal revenue 
linked with these small business tax preferences, recent estimates by the Joint Committee on 
Taxation (JCT) suggest that foregone federal revenue might exceed $18 billion in FY2021. 
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Contents 
Introduction ..................................................................................................................................... 1 
How Does the Federal Tax Code Define a Small Business? ........................................................... 2 
Main Federal Tax Benefits for Small Business ............................................................................... 2 
Overview of Current Federal Small Business Tax Preferences ....................................................... 8 
Expensing Allowance for Certain Depreciable Business Assets ............................................... 8 
Amortization of Business Start-Up Costs ............................................................................... 10 
Cash-Basis Accounting ............................................................................................................ 11 
Exemption from Limitation on the Deduction for Business Interest Expenses ...................... 12 
Tax Incentives for Equity Investment in Small firms .............................................................. 12 
Full Exclusion of Capital Gains on Eligible Small Business Stock .................................. 13 
Losses on Small Business Investment Company Stock Treated as Ordinary 
Losses without Limitation ............................................................................................. 14 
Ordinary Income Treatment of Losses on Sales of Small Business Stock........................ 15 
Uniform Capitalization of Inventory Costs ............................................................................. 15 
Simplified Dollar-Value LIFO Accounting Method for Small Firms ..................................... 16 
Nonrefundable Tax Credit for Pension Plan Start-Up Costs of Small Firms .......................... 16 
Nonrefundable Tax Credit for Automatic Employee Enrollment in Small Employer 
Retirement Plans .................................................................................................................. 17 
Nonrefundable Tax Credit for Expenses Paid or Incurred in Improving Business 
Access for Disabled Persons ................................................................................................ 18 
Nonrefundable Tax Credit for Employee Health Insurance Expenses .................................... 18 
Legislation to Expand or Enhance Small Business Tax Benefits in the 117th Congress ............... 20 
 
Tables 
Table 1. Current Small Business Tax Preferences  and Their Estimated Revenue Cost in 
FY2021 ......................................................................................................................................... 4 
Table 2. Small Business Tax Benefit Bills in the 117th Congress .................................................. 20 
  
Contacts 
Author Information ........................................................................................................................ 22 
 
Congressional Research Service 
Small Business Tax Benefits: Current Law  
 
Introduction 
Small business owners in general have long been praised for their contributions to the U.S. 
economy, especially their impact on job growth and innovation. Many regard small firms as a 
vital source of job creation and technological innovation. Small firms have also been celebrated 
as effective vehicles for advancing the economic status of minorities, immigrants, and women.  
Some view the federal income tax as an obstacle to the formation and growth of small firms 
because of its negative impact on incentives to work and invest. Others look upon federal taxes as 
a policy tool for increasing small businesses’ rates of formation and growth. This report addresses 
the ways in which federal taxes preferentially treat small firms. 
Since the 111th Congress, nine bills have been enacted that established new small business tax 
preferences and extended and/or modified existing ones: 
  American Recovery and Reinvestment Act of 2009 (P.L. 111-5), 
  Patient Protection and Affordable Care Act (ACA, P.L. 111-148), 
  Small Business Jobs Act of 2010 (P.L. 111-240), 
  Tax Relief, Unemployment Insurance Reauthorization, and Job Creation Act of 
2010 (P.L. 111-312), 
  American Taxpayer Relief Act of 2012 (P.L. 112-240), 
  Tax Increase Prevention Act of 2014 (P.L. 113-295), 
  Protecting Americans from Tax Hikes Act of 2015 (Division Q of the 
Consolidated Appropriations Act, 2016 [P.L. 114-113]),  
  P.L. 115-97 (also known as the Tax Cuts and Jobs Act or TCJA), and  
  Setting Every Community Up for Retirement Enhancement Act of 2019 
(SECURE Act, P.L. 116-94). 
Small business tax benefits (or preferences) raise the question of how a small business should be 
defined for tax purposes. Two considerations seem paramount in crafting such a definition: (1) 
choosing the appropriate size measure (e.g., employment, assets, or receipts) and (2) deciding 
whether the chosen measure should govern eligibility for each small business tax benefit.  
This report serves two purposes. One is to clarify the definition of a small business for the sake of 
government tax policies intended to support small firms. The other is to identify the main 
nonagricultural small business tax preferences and consider the foregone revenue associated with 
them.  
There is considerable federal support for small firms beyond the tax code. These programs and 
policies are not discussed here. Details on much of this support can be found in several CRS 
reports.1  
                                                 
1 See CRS Report RL33243, Small Business Administration: A Primer on Programs and Funding, by Robert Jay 
Dilger; CRS Report R45576, An Overview of Small Business Contracting, by Robert Jay Dilger; and CRS Report 
R43695, Small Business Research Programs: SBIR and STTR, by Marcy E. Gallo. 
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How Does the Federal Tax Code Define a Small 
Business? 
The U.S. Small Business Administration (SBA) is the primary federal agency for setting small 
business size standards. Its standards determine eligibility for many of the programs the SBA 
administers, and federal agencies that set aside a portion of their contracts for small firms 
generally are required to use SBA size standards to determine eligibility.  
The federal tax code does not rely on SBA size standards to determine eligibility for available 
small business tax benefits. As Table 1 shows, most of these tax preferences use asset, receipt, or 
employment size to identify eligible firms.2 The employment and receipt sizes found in the tax 
code are much smaller than the sizes used by the SBA to identify small businesses by industry.3  
A few tax provisions benefit small firms as a consequence of their design rather than through a 
size standard. A prime example is the limited expensing allowance under IRC Section 179. It 
allows businesses to expense (or deduct as a current expense) a certain amount of eligible 
tangible, depreciable assets in the year they are placed in service. Although the provision’s 
statutory language does not bar large companies from claiming the expensing allowance, the 
limitations on its use have the effect of confining its benefits to small firms.  
Different size standards are used to determine eligibility for existing federal small business tax 
benefits. This lack of uniformity may have certain consequences. On the one hand, it can lead to a 
seemingly arbitrary distribution of tax preferences among small companies that are similar in 
lines of business and in employment, receipt, or asset size; a company may be eligible for some 
preferences but not others.4 On the other hand, the absence of a uniform size standard for federal 
small business tax preferences may allow lawmakers greater leeway in designing tax benefits to 
support policy objectives that do not concern all small businesses.  
Main Federal Tax Benefits for Small Business 
In principle, all business income is subject to federal taxation, but the reality is more complicated, 
as the federal tax code does not treat all business income equally. 
The tax burden on business income depends on several factors. One is whether a firm is 
organized for tax purposes as a C corporation or as a pass-through entity (i.e., partnerships 
(including limited liability companies, or LLCs), S corporations, and sole proprietorships). 
Corporate profits are taxed twice: once at the firm level and a second time at the shareholder level 
                                                 
2 According to one source, the Internal Revenue Code contains at least 24 different definitions of a small business. See 
Douglas K Barney, Chris Bjornson, and Steve Wells, “Just How Small Is Your Business?” National Public Accountant, 
August 2003, pp. 4-6. 
3 For instance, as of August 2019, the SBA uses an upper limit of 500 employees for small firms in 98 manufacturing 
industries and an upper limit of $16.5 million or $22.0 million in average annual sales or receipts for small firms in 
most administrative and support service industries (see CRS Report R40860, Small Business Size Standards: A 
Historical Analysis of Contemporary Issues, pp. 25-30, for more details). By contrast, only firms with no more than 25 
full-time employees earning $50,000 or less in wages or salaries may claim the maximum small employer tax credit for 
health insurance costs under Section 45, and only corporations and partnerships with less than $5.0 million in average 
annual gross receipts in the previous three years are eligible to use cash-basis accounting when they otherwise would 
have to use accrual-basis accounting under Section 446. 
4 For instance, two small companies with the same number of employees engaging in the same lines of business may 
not be eligible for the same tax preferences because they differ in asset and receipt size. 
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when profits are distributed as dividends or long-term capital gains. By contrast, the net income 
of pass-through entities is taxed only at the owner or shareholder level. 
Furthermore, the taxation of business income depends on whether or not the owner of a pass-
through entity pays the alternative minimum tax (AMT). Pass-through business owners paying 
the AMT may or may not be taxed at lower rates than they would be under the regular income 
tax. Corporations were also subject to an AMT from 1987 to 2017, but P.L. 115-97 repealed the 
tax, starting in 2018.  
Firm size also contributes to a company’s federal tax burden. Some tax provisions benefit small 
firms but not large firms. There is no formal distinction between the taxation of small and large 
firms in the tax code. Small business tax benefits include deductions, exclusions, exemptions, 
credits, deferrals, and preferential tax rates whose main effect is to reduce a firm’s cost of capital 
for investments and increase its cash flow.  
This report focuses on federal tax benefits targeted at small firms that have the broadest reach 
outside agriculture. Excluded from these benefits are tax preferences available only to small firms 
in particular industries, such as life insurance, banking, and energy production or distribution, as 
well as tax benefits that can be claimed by firms of all sizes, such as the Section 41 research tax 
credit and the Section 168(k) 100% expensing allowance. Table 1 summarizes the key features of 
each of the tax benefits examined here. 
The tax benefits shown in Table 1 do not include the taxation of pass-through business profits. It 
can be argued that pass-through business taxation should be included. Most small firms are 
organized as pass-through businesses.5 And pass-through business profits may be taxed at lower 
marginal tax rates than corporate profits distributed as dividends and capital gains among high-
income taxpayers. But these considerations do not make the tax treatment of pass-through 
businesses a small business tax benefit under the definition used here, as some pass-through firms 
are large in employment or receipt size. 
Excluding sole proprietorships (which are almost uniformly small according to size standards), a 
minority of pass-through firms are large in employment or receipt size, but they account for a 
disproportionately large share of pass-through business income. According to Internal Revenue 
Service (IRS) data, in 2017, small S corporations ($1 million or less in business receipts) filed 
80.8% of S corporation returns but accounted for 10.2% of total S corporation business receipts; 
large S corporations ($10 million or more in business receipts), by contrast, filed 2.4% of returns 
but received 62.2% of total business receipts.6 A similar dichotomy exists among partnerships. 
IRS data indicate that in 2018, small partnerships ($10 million and less in assets)7 filed 94.5% of 
partnership returns but accounted for 25.4% of total business receipts; large partnerships ($50 
million and more in assets) filed 1.5% of returns but took in 60.3% of total partnership business 
receipts.8  
Current federal small business tax preferences are summarized in Table 1. Each preference is 
then explained in greater detail. 
                                                 
5 In 2015, according to the Internal Revenue Service, C corporations filed 4.6% of business tax returns, and the 
remaining 95.4% came from pass-through businesses. See https://www.irs.gov/statistics/soi-tax-stats-integrated-
business-data.  
6 See https://www.irs.gov/statistics/soi-tax-stats-s-corporation-statistics. 
7 The IRS does not publish data on partnerships by size of receipts. 
8 See https://www.irs.gov/statistics/soi-tax-stats-partnership-statistics. 
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It is not known how much revenue is foregone because of the tax benefits shown in Table 1. A 
2020 estimate by the Joint Committee on Taxation (JCT), which does not cover every tax benefit 
in the table, suggested that their revenue cost may exceed $18 billion in FY2021.9  
Table 1. Current Small Business Tax Preferences  
and Their Estimated Revenue Cost in FY2021 
Estimated 
Revenue Cost 
in FY2021 
Small 
Under 
Business Tax 
Federal Tax 
Nature of the 
Eligible 
Current 
Current Law 
Preference 
Code Section  
Benefit 
Taxpayers 
Status 
($ billions) 
Limited 
179 
Allows firms to 
No size limit 
Permanent 
$7.1 
Expensing 
deduct as a 
Allowance 
current expense 
up to $1.050 
mil ion of their 
expenditures on 
qualified 
depreciable 
assets placed in 
service in 2021; 
begins to phase 
out when total 
expenditures 
exceed $2.620 
mil ion. 
Nonagricultural 
446 
Allows eligible 
C corporations 
Permanent 
3.2 
Cash-Basis 
partnerships and  and partnerships 
Accounting 
C corporations 
with average 
(including 
annual gross 
certain farms) to  receipts of $25 
use the cash 
mil ion or less in 
method of 
the previous 
accounting, 
three tax years. 
regardless of 
whether they 
maintain 
inventories.  
                                                 
9 U.S. Congress, Joint Committee on Taxation, Estimates for Federal Tax Expenditures for Fiscal Years 2020-2024, 
JCX-23-20, November 5, 2020. 
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Small Business Tax Benefits: Current Law  
 
Estimated 
Revenue Cost 
in FY2021 
Small 
Under 
Business Tax 
Federal Tax 
Nature of the 
Eligible 
Current 
Current Law 
Preference 
Code Section  
Benefit 
Taxpayers 
Status 
($ billions) 
Exclusion of 
1202 
Allows 
Stock must be 
Permanent 
1.8 
Gain from the 
noncorporate 
issued by C 
Sale of Qualified 
investors to 
corporation in a 
Small Business 
exclude 
qualified 
Stock 
between 50% 
business that 
and 100% 
has $50 mil ion 
(depending on 
or less in gross 
when the stock 
assets when the 
was acquired) of  stock is issued. 
any gain on the 
disposition of 
qualified small 
business stock 
held for five or 
more years. 
Tax Credit for 
45R 
Allows eligible 
Employers with 
Permanent 
Less than $50 
Employee 
small employers 
25 or fewer 
mil ion 
Health 
to take a 
employees 
Insurance Costs 
nonrefundable 
whose average 
tax credit for 
annual 
nonelective 
compensation 
contributions 
does not exceed 
that cover at 
double the 
least 50% of the 
average wage 
cost of health 
amount, which 
plans for 
is $27,800 in 
participating 
2021. 
employees. 
Simplified 
474 
Allows qualified 
Business 
Permanent 
NA 
Dol ar-Value 
small firms to 
taxpayers with 
LIFO 
use a simpler 
average annual 
Accounting 
LIFO method in 
gross receipts of 
Method 
estimating the 
$5 mil ion or 
base-year value 
less in the three 
of their 
previous tax 
inventories. 
years. 
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Small Business Tax Benefits: Current Law  
 
Estimated 
Revenue Cost 
in FY2021 
Small 
Under 
Business Tax 
Federal Tax 
Nature of the 
Eligible 
Current 
Current Law 
Preference 
Code Section  
Benefit 
Taxpayers 
Status 
($ billions) 
Deduction and 
195 
Allows start-up 
Firms in their 
Permanent 
0.3 
Amortization of 
businesses to 
first year of 
Business Start-
deduct up to 
business 
Up Expenses 
$5,000 of 
eligible start-up 
expenses in the 
year they begin 
to operate, and 
to amortize the 
remaining 
expenses over 
180 months; the 
deduction 
phases out, 
dol ar for dol ar, 
when qualified 
expenses 
exceed $50,000. 
Tax Credit for 
44 
Allows qualified 
Employers with 
Permanent 
Less than $50 
Expenses 
small firms to 
gross receipts of 
mil ion 
Incurred in 
claim a 
$1 mil ion or 
Improving the 
nonrefundable 
less or 30 or 
Accessibility of a 
tax credit for 
fewer ful -time 
Business Facility 
qualified 
employees in 
for Disabled 
expenses they 
the previous tax 
Individuals 
incur in making 
year.  
their facilities 
more accessible 
for disabled 
persons. 
Ordinary 
1244 
Allows eligible 
Individuals and 
Permanent 
NA 
Income 
taxpayers to 
partnerships 
Treatment of 
deduct any loss 
Losses on Sales 
from the sale, 
of Certain Small 
exchange, or 
Business Stock 
worthlessness of 
qualified small 
business stock 
as an ordinary 
loss and not a 
capital loss. 
Treating Losses 
1242 
Allows 
Any individual 
Permanent 
NA 
on the Sale of 
taxpayers who 
investing in an 
Small Business 
invest in an 
operating SBIC 
Investment 
SBIC to deduct 
Company (SBIC) 
from ordinary 
Stock as 
income losses 
Ordinary Losses 
from the sale or 
exchange or 
worthlessness of 
SBIC stock. 
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Small Business Tax Benefits: Current Law  
 
Estimated 
Revenue Cost 
in FY2021 
Small 
Under 
Business Tax 
Federal Tax 
Nature of the 
Eligible 
Current 
Current Law 
Preference 
Code Section  
Benefit 
Taxpayers 
Status 
($ billions) 
Exemption from 
263A 
Exempts 
Business 
Permanent 
NA 
the Uniform 
qualified small 
taxpayers with 
Capitalization 
firms from the 
average annual 
Rule 
requirement 
gross receipts of 
that firms 
$25 mil ion or 
acquiring or 
less in the three 
producing real 
previous tax 
or tangible 
years. 
property for 
resale include in 
the estimated 
value of their 
inventory the 
direct cost of 
the property 
and indirect 
costs that can 
be allocated to 
it. 
Application of 
41(h) and 
Allows qualified 
Business 
Permanent 
NA 
Section 41 
3111(f) 
firms to claim a 
taxpayers that 
Research Tax 
payrol  tax 
have less than 
Credit Against 
credit of up to 
$5 mil ion in 
Employer Share 
$250,000 with 
gross receipts in 
of the Payrol  
their unused 
the current tax 
Tax 
research tax 
year and had no 
credit for the 
gross receipts in 
current tax 
any tax year 
year. 
preceding the 
previous five 
years. 
Tax Credit for 
45E 
Allows qualified 
Employers with 
Permanent 
NA 
Pension Plan 
small firms to 
no more than 
Start-Up 
take a 
100 employees, 
Expenses 
nonrefundable 
each of whom 
tax credit for a 
received $5,000 
portion of the 
or more in 
costs they incur 
compensation in 
in establishing 
the previous 
new qualified 
calendar year.  
pension plan for 
employees; the 
credit may be 
taken in each of 
the first three 
years of the 
plan. 
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Small Business Tax Benefits: Current Law  
 
Estimated 
Revenue Cost 
in FY2021 
Small 
Under 
Business Tax 
Federal Tax 
Nature of the 
Eligible 
Current 
Current Law 
Preference 
Code Section  
Benefit 
Taxpayers 
Status 
($ billions) 
Tax Credit for 
45T 
Allows an 
Employers with 
Permanent 
NA 
Employers That 
eligible 
no more than 
Add Automatic 
employer to 
100 employees, 
Enrol ment to 
claim a $500 
each of whom 
New or Existing 
nonrefundable 
received a 
Employee 
tax credit in 
minimum of 
Pension Plans 
each of the first 
$5,000 in 
three years in 
compensation 
which the 
during the 
employer 
previous 
includes 
calendar year. 
automatic 
enrol ment for 
qualified 
employee 
retirement 
plans. 
Exemption for 
163(j) 
Allows eligible 
C corporations 
Permanent 
NA 
Qualified Small 
small firms to 
and pass-
Firms from the 
deduct business 
through entities 
Limitation on 
interest without  with $25 mil ion 
the Deduction 
the limits set by 
or less in 
for Business 
P.L. 115-97.  
average annual 
Interest 
gross receipts in 
the three 
previous tax 
years. 
Source: Compiled by the Congressional Research Service from the fol owing source: Joint Committee on 
Taxation, Estimates of Federal Tax Expenditures for Fiscal Years 2020-2024, JCX-23-20. 
Overview of Current Federal Small Business Tax 
Preferences 
Expensing Allowance for Certain Depreciable Business Assets 
Expensing is the fastest form of depreciation. It treats the cost of acquiring a depreciable asset 
(e.g., machine tool or patent) as a current expense rather than a capital expense. As a result, the 
asset’s full cost is deducted in the year it is placed into service. In the absence of expensing, 
companies must recover capital costs over longer periods using the appropriate depreciation 
schedule. 
Under IRC Section 179, a company may expense up to $1.050 million of the cost of qualified 
property—mainly machinery, equipment, standardized computer software, and improvements to 
nonresidential buildings—placed into service in 2021 and write off any remaining cost using the 
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Small Business Tax Benefits: Current Law  
 
appropriate depreciation schedule under the Modified Accelerated Cost Recovery System 
(MACRS).10 The maximum allowance is indexed for inflation.  
The allowance is subject to two limitations. One is the investment limitation, which is the amount 
at which the maximum allowance begins to phase out. In 2021, that amount is set at $2.620 
million; it too is indexed for inflation. Under this limitation, a firm of any size may expense up to 
$1.050 million of the qualified assets it places in service in 2021. When the total cost of such 
assets exceeds the investment limitation’s threshold amount, however, the maximum allowance is 
reduced dollar for dollar until it reaches $0. As a result, when the total cost of the depreciable 
assets a firm acquires and places in service in 2021 equals or exceeds $3.670 million, none of the 
cost may be expensed. 
A second limitation relates to a firm’s taxable income in the trade or business in which the assets 
expensed under IRC Section 179 are used. Specifically, the maximum allowance a firm can take 
cannot exceed its taxable income from such a trade or business. Any allowance in excess of 
income may be carried forward up to 20 years. 
There is no size limit on the companies that may benefit from IRC Section 179; rather, the 
phaseout threshold makes the expensing allowance a benefit principally for smaller firms. Large 
firms such as Google, Microsoft, or Amazon typically spend far more than the maximum 
investment limit ($3.670 million in 2021) on assets eligible for the allowance. 
Congress established the expensing allowance in 1958 to serve several purposes: (1) to lower the 
cost of capital for relatively small companies; (2) to simplify tax accounting for the same group of 
companies; and (3) to stimulate increased business investment during periods of weak or negative 
economic growth.  
In theory, the allowance can stimulate business investment in two ways. First, it lowers the user 
cost of capital for investment in qualified assets, all other things being equal. The user cost (or 
rental price) of capital is one of the key influences on business investment decisions. It combines 
the opportunity cost of an investment (i.e., the highest pretax rate of return a company could earn 
by investing in a low-risk asset like a U.S. Treasury bond) with its direct costs (e.g., depreciation, 
the actual cost of the asset, and income taxes). In effect, the user cost of capital determines the 
after-tax rate of return an investment must earn in order to be profitable—and thus worth 
undertaking. In general, the larger the user cost of capital, the fewer projects companies can 
profitably undertake, and the lower their desired capital stock. In theory, when a change in tax 
law decreases the user cost of capital, businesses can be expected to increase the amount of 
capital they wish to own, boosting business investment in the short run, all other things being 
equal. Expensing produces a zero marginal effective tax rate on the returns to investment in those 
assets under the standard economic model for determining the user cost of capital.11 Under a 
progressive rate structure such as the U.S. individual income tax, the decrease in the user cost of 
capital increases as marginal tax rates rise.  
Second, the allowance increases the cash flow of firms using it, all other things being equal. For 
firms whose cost of internal funds is lower than their cost of external funds such as debt or equity, 
an increase in cash flow may enable them to undertake new investments. 
                                                 
10 For more details on the current expensing allowance and its economic effects, see CRS Report RL31852, The Section 
179 and Section 168(k) Expensing Allowances: Current Law and Economic Effects, by Gary Guenther.  
11 See Jane G. Gravelle, “Effects of the 1981 Depreciation Revisions on the Taxation of Income From Business 
Capital,” National Tax Journal, vol. 35, no. 1, March 1982, pp. 2-6. In effect, under expensing, the after-tax rate of 
return on an investment becomes equal to the pretax rate of return. This happens because expensing reduces costs and 
after-tax returns by the same proportion, which is determined by the tax rate. 
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Table 1 shows that the IRC Section 179 expensing allowance may result in a $7.1 billion revenue 
loss in FY2021. But the allowance does not necessarily produce a revenue loss. Its revenue effect 
generally depends on the aggregate amount of U.S. investment in qualified assets in a particular 
tax year. During periods of rising business investment, the allowance should generate substantial 
revenue losses because a portion of that investment is expensed under IRC Section 179. But the 
opposite should happen in periods of declining investment, when the revenue gains from previous 
use of the allowance exceed the revenue loss from new uses of it. Any shift from revenue loss to 
revenue gain simply reflects the timing of depreciation deductions under current law.  
Firms that write off the entire cost of an asset in the year when it is placed in service under IRC 
Section 179 cannot claim additional depreciation allowances against future profits from expensed 
assets. In effect, they exchange a lower tax liability in the present for larger tax liabilities in the 
future. Companies that make this trade-off come out ahead, particularly in the case of long-lived 
assets, if the present value of allowable depreciation deductions is greater with expensing than it 
is with other depreciation schedules.  
Amortization of Business Start-Up Costs 
A key concept underlying the federal income tax is that business taxable income should exclude 
all reasonable costs incurred in earning it. This concept underlies IRC Section 162(a), which 
generally allows companies to deduct the full amount of ordinary and necessary costs paid or 
incurred in conducting a trade or business. The concept also implies that costs paid or incurred in 
starting or organizing a business should not be treated as current expenses, as they are not directly 
related to the conduct of a trade or business. Instead, because start-up expenses represent an 
attempt to create a capital asset (in this case a business) with a useful life likely to extend beyond 
the year when it begins to operate, they should be capitalized, added to the owner’s basis in the 
business, and recovered when the business is sold or shuttered. 
IRC Section 195 (as amended by the American Jobs Creation Act of 2004 or AJCA, P.L. 108-357) 
deviates from this concept by permitting individuals who incur business start-up and 
organizational costs after October 22, 2004, to deduct up to $5,000 of those costs in the year a 
new trade or business begins to operate. This deduction is reduced, dollar for dollar (but not 
below zero), by the amount by which eligible expenditures exceed $50,000. Expenditures that 
cannot be deducted may be amortized over 15 years, beginning in the first month the new trade or 
business earns income. To benefit from the $5,000 deduction, a taxpayer must have an equity 
interest in the trade or business and actively participate in running it. 
The Small Business Job Creation Act of 2010 (P.L. 111-240) raised the deduction to $10,000 and 
the phaseout threshold to $60,000 for qualified expenses incurred or paid in 2010 only. These 
higher amounts have not been reinstated. 
To qualify for the deduction, start-up and organizational costs must meet two requirements. First, 
they must be paid or incurred as part of an investigation into creating or acquiring an active trade 
or business, starting a new trade or business, or an effort to produce income or profit before 
starting a trade or business with the aim of eventually converting the activity into an active trade 
or business. Second, the costs must be similar in kind to costs that would be deductible if they 
were paid or incurred in connection with the expansion of an active trade or business.  
Taxpayers with start-up and organizational expenses that entered a trade or business on or before 
October 22, 2004 (the day the $5,000 deduction first became available) were allowed to amortize 
those expenditures over a minimum of five years, beginning in the month the new trade or 
business began to operate. 
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The option to deduct as much as $5,000 in start-up and organizational costs in the first year of 
operation permits the owner of a new firm to reduce taxable income in the year when the business 
begins. Without such a provision, the expenses could not be recovered in full until the owner sells 
his or her interest in the business, or in part until five years after the business started, when the 
expenses could be amortized. As a result, the option accelerates the recovery of certain business 
expenses and may boost the cash flow of small start-up firms when their access to funds may be 
limited. For firms that lose money in their first year of operation, the deduction, if used, simply 
adds to their net operating losses, which may be carried forward up to 20 years to lower future 
taxes.12 
Cash-Basis Accounting 
IRC Section 446 requires firms to compute their taxable income using the same method of 
accounting they regularly employ in keeping their books, provided that method clearly reflects 
income for tax purposes. A taxpayer’s method of accounting clearly reflects income if it treats 
items of income and deductions consistently from one tax year to the next. Permissible methods 
of accounting include the cash-receipts method, the accrual method, the installment method, the 
long-term-contract method, the crop method, the special methods for research and development 
expenditures, and the method for soil and water conservation expenditures.  
Two accounting methods are widely used in the private sector: cash-basis and accrual-basis. 
Under the former, income generally is recorded when it is received in the form of cash or its 
equivalent, and expenses generally are recorded when they are paid, regardless of when the 
income is actually earned or the expenses are actually incurred. 
Under accrual-basis accounting, income and expenses generally are recorded when the 
transactions giving rise to them are completed or nearly completed, regardless of when cash or its 
equivalent is received or paid. A firm using accrual-basis accounting records income when its 
right to receive it is established and records expenses when the amounts are fixed and its liability 
for them is established. 
Each accounting method has its advantages. Cash-basis accounting is much simpler to administer 
and allows firms greater control over when items of income or deduction are recognized for tax 
purposes. In contrast, accrual-basis accounting generally yields a more accurate measure of a 
firm’s economic income because it matches income with expenses with greater precision and 
rigor. 
Under certain circumstances, the accrual method must be used for tax purposes. For instance, 
when keeping an inventory is necessary to the operation of a business, a taxpayer must use the 
accrual method in computing taxable income—unless the IRS determines that another method 
clearly reflects income and may be used instead. Inventories are considered necessary if a firm 
earns income from the production, purchase, or sale of merchandise. Subchapter C corporations, 
partnerships with C corporations as partners, trusts that earn unrelated business income, and 
authorized tax shelters generally are required to use the accrual method of accounting.  
But there are some exceptions to these rules. Starting in 2018, any partnership or C corporation 
with average annual gross receipts of $25 million or less in the three previous tax years may use 
the cash method of accounting, regardless of whether they keep an inventory. This amount has 
been indexed for inflation since 2019; the receipt threshold is set at $26 million in 2021. Self-
                                                 
12 Under the American Recovery and Reinvestment Act of 2009 (P.L. 111-5), eligible firms with net operating losses in 
the 2008 tax year could carry them back up to five years. Only firms with average annual gross receipts in the past 
three tax years of less than $15 million were allowed to take advantage of this expanded carryback. 
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employed persons, S corporations, and qualifying partnerships and personal service corporations 
also have the option of using the method. As these exceptions suggest, many eligible firms are 
relatively small in receipt size.  
In effect, the cash method has the potential to extend the same benefit to small firms as the IRC 
Section 179 expensing allowance does: deferral of income tax payments. The federal tax code 
generally operates on the principle that a firm receives income when it gains the legal right to be 
paid for something it provides. But under the cash method, firms have the option of deferring the 
payment of taxes, or taking advantage of lower tax rates, by shifting deductions and income from 
one tax year to the next.  
Despite the cash method’s potential benefits, it may not always be in the interest of eligible firms 
to use it. For example, a small business might be better off using accrual-basis accounting if it 
needs to periodically issue accurate and reliable financial reports. Cash-basis accounting can 
distort a firm’s financial position in at least two ways.13 First, because it records transactions 
involving only cash or its equivalent, the method excludes transactions involving exchanges of 
assets or liabilities. Second, the determination of net income under cash-basis accounting can be 
manipulated by recording revenues or expenses before or after goods and services are produced 
or sold. 
Exemption from Limitation on the Deduction for Business Interest 
Expenses 
Before the enactment of the 2017 TCJA, the federal tax code generally allowed firms to deduct 
interest and other borrowing expenses incurred in the pursuit of a trade or business without limit 
in the year they were paid or incurred, under IRC Section 163. There were a few exceptions. No 
deduction was allowed for interest paid on tax-exempt bonds, interest from unregistered 
obligations, interest paid on insurance contracts, and interest paid on original discount, high-yield 
obligations. 
The TCJA modified this treatment by limiting the amount of interest and other borrowing costs a 
company was allowed to deduct. IRC Section 163(j), as amended by the 2017 act, caps the 
amount of qualified interest expenses (including floor-plan financing interest payments) it may 
deduct at 30% of its adjusted taxable income.14 Interest that cannot be deducted in the current tax 
year may be carried forward indefinitely, subject to certain restrictions for partnerships and S 
corporations.  
Many small firms are not affected by the limitation on the interest deduction. Specifically, firms 
with average annual gross receipts during the previous three tax years (2018-2020) of $26 million 
or less are exempt from this limitation.  
Tax Incentives for Equity Investment in Small firms 
Several small business tax preferences encourage equity investment in qualified small firms that 
otherwise may have trouble raising needed funds. The preferences, which are described below, do 
                                                 
13 See Robert Libby, Patricia A. Libby, and Daniel G. Short, Financial Accounting (Chicago: Irwin, 1996), p. 111. 
14 Adjusted taxable income is a company’s regular taxable income calculated without (1) items of income, gain, 
deduction, or loss not allocated to a trade or business, (2) business interest income, (3) net operating losses, (4) the IRC 
Section 199A deduction for qualified pass-through business income, and (5) deductions for depreciation, depletion, or 
amortization in the years before 2022. Floor-plan financing interest is the interest paid or accrued on debt used to 
finance the acquisition of motor vehicles held for sale or lease to customers and secured by a seller’s inventory. 
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so by increasing potential after-tax returns or reducing potential after-tax losses on such 
investment, relative to other investment options. The same tax benefits are not available to 
individuals investing in large firms. 
Full Exclusion of Capital Gains on Eligible Small Business Stock 
Two key considerations in determining the income tax liability for many individuals are the 
recognition of income as ordinary or capital gain, and the difference between long-term and short-
term capital gains or losses. 
A capital gain or loss arises when a capital asset such as a stock or bond is sold or exchanged. If 
the selling price is greater than the acquisition or purchase price, the transaction produces a 
capital gain. Conversely, a capital loss results when the reverse is true.  
Capital assets held longer than 12 months and then sold or exchanged give rise to long-term 
capital gains or losses; sales or exchanges of capital assets held one year or less generate short-
term capital gains or losses. Short-term capital gains are considered ordinary income and taxed at 
regular income tax rates. By contrast, long-term capital gains are considered capital income and 
taxed in 2021 at 20% for single filers with taxable income of $445,850 or more and joint filers 
with taxable income of $501,600 or more; 15% for single filers with taxable income between 
$40,400 and $445,850 and joint filers with taxable incomes between $80,800 and $501,600, and 
0% for single filers with taxable incomes below $40,400 and joint filers with taxable incomes 
below $80,800. 
IRC Section 1202 allows noncorporate taxpayers (including partnerships, LLCs, and S 
corporations) to permanently exclude from gross income the entire gain from the sale or exchange 
of qualified small business stock (QSBS) held for a five or more years. The exclusion is 100% for 
QSBS acquired after September 27, 2010. For QSBS acquired between August 11, 1993, and 
February 17, 2009, 50% of any gain on its sale or exchange was excludable. The exclusion was 
75% for QSBS acquired between February 18, 2009, and September 27, 2010. 
There is a limit on the gain that a taxpayer may exclude. In any tax year, the gain cannot exceed 
the greater of 10 times the taxpayer’s adjusted basis in all QSBS issued by that firm and sold or 
exchanged by the taxpayer during that year, or $10 million—reduced by any excluded gains from 
sales of the same stock in previous years. This means that the amount a taxpayer may exclude 
over time from the sale of a single firm’s QSBS cannot exceed $10 million. Any remaining gain 
is taxed at a fixed rate of 28%.  
To qualify for the partial exclusion, small business stock must satisfy several requirements. First, 
the stock must be issued after August 10, 1993, and acquired by the taxpayer at its original issue, 
either directly or through an underwriter, in exchange for money or property, or as compensation 
for services rendered to the issuing corporation. Second, the stock must be issued by a domestic C 
corporation whose gross assets do not exceed $50 million when the stock is issued. Third, at least 
80% of an eligible corporation’s assets must be deployed in the active conduct of one or more 
qualified trades or businesses during “substantially all” of the requisite five-year holding period 
for QSBS. Assets used for working capital, start-up activities, and research and development meet 
the active business test, even if they are intended to develop future lines of business. Specialized 
small business investment companies licensed under the Small Business Investment Act of 1958 
also meet the active business test, making their stock eligible for the gain exclusion. 
All trades and lines of business are eligible for the IRC Section 1202 gain exclusion except 
health, law, engineering, architecture, hospitality, farming, insurance, finance, and mineral 
extraction. Stock issued by the following small C corporations is also ineligible for the exclusion: 
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Small Business Tax Benefits: Current Law  
 
current or former domestic international sales corporations (DISCs), regulated investment 
companies (RICs), real estate investment trusts (REITs), real estate mortgage investment conduits 
(REMICs), financial asset securitization investment trusts (FASITs), cooperatives, or C 
corporations that have claimed the possessions tax credit under IRC Section 936. 
The gain exclusion for QSBS is intended to improve the access of qualified start-up firms to what 
some would call “patient” equity capital. It attempts to do this by increasing the potential after-tax 
returns an investor can earn on QSBS, relative to the potential after-tax returns on other 
investment opportunities, over a minimum of five years. Under current law, the maximum capital 
gains rate is 20% and the exclusion is 100% of realized gains from the sale or exchange of QSBS 
acquired after September 27, 2010. A full exclusion yields an effective capital gains tax rate of 
0% for QSBS. Proponents of the 100% exclusion say it is needed to compensate for the 
uncertainty and asymmetric information that can make it difficult for new start-up firms to obtain 
needed funding for activities critical to their survival and growth. 
Little research has been done on the gain exclusion’s effects on QSBS issuers. There is some 
evidence that the exclusion reduces the cost of capital for C corporations issuing QSBS. In a 1999 
study of IRC Section 1202, David Guenther and Michael Willenborg found that the prices of 
QSBS issued by a sample of firms after the enactment of the tax provision were “significantly 
higher than the issue prices before the change.”15 At the same time, there were no significant 
differences in the issue prices for a sample of firms that were ineligible to issue QSBS. The 
authors concluded that at least some of the future benefits from the capital gains rate reduction 
were captured by issuing corporations in the form of higher stock prices, instead of those benefits 
going to investors. 
Still, some are critical of the gains exclusion. Alan Viard of the American Enterprise Institute, 
while recognizing the efficiency gains from using equity instead of debt to finance new 
investments, has argued that the IRC Section 1202 gain exclusion distorts the allocation of 
investment capital within the U.S. economy. As he noted in a 2012 article, the tax preference 
encourages equity investment in very small companies in certain industries only and may be 
claimed by certain investors only, not by all investors.16 In his view, the rules governing the 
exclusion diminish its potential economic effects. 
Losses on Small Business Investment Company Stock Treated as Ordinary 
Losses without Limitation 
Generally, losses on stock investments are treated as capital losses for tax purposes. They may be 
used to offset any capital gains a taxpayer has in the same tax year. Individuals may also use any 
combination of short-term and long-term capital losses to offset up to $3,000 in ordinary income 
in a tax year. 
Under IRC Section 1242, however, individuals who invest in small business investment 
companies (SBICs) are permitted to deduct from their ordinary income all losses from the sale or 
exchange or worthlessness of their stock. This exception from the general rule is intended to 
encourage equity investment in SBICs by lowering the potential after-tax loss on such an 
investment, relative to potential after-tax losses on other investments. 
                                                 
15 David A. Guenther and Michael Willenborg, “Capital Gains Tax Rates and the Cost of Capital for Small Business: 
Evidence from the IPO Market,” Journal of Financial Economics, vol. 53, no. 3 (1999), p. 401. 
16 Alan D. Viard, “The Misdirected Debate and the Small Business Stock Exclusion,” Tax Notes, February 6, 2012, p. 
741. 
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SBICs are privately owned, regulated investment corporations that are licensed by the Small 
Business Administration to provide equity capital, long-term loans, and managerial guidance to 
firms with a net worth of less than $19.5 million and an average net income of less than $6.5 
million in the previous two years.17 SBICs use their own capital and funds borrowed at favorable 
rates made possible by SBA loan guarantees to invest in qualified firms. For tax purposes, most 
SBICs are treated as C corporations. 
Ordinary Income Treatment of Losses on Sales of Small Business Stock 
IRC Section 1244 allows taxpayers to treat a loss from the sale, exchange, or worthlessness of 
eligible small business stock as an ordinary loss rather than a capital loss. For taxpayers, ordinary 
losses are treated as business losses in computing a net operating loss. 
To qualify for this treatment, a stock must meet four requirements. First, it must be issued by a 
small business corporation after November 6, 1978. A small business corporation is a domestic C 
corporation whose cash and property received as a contribution to capital and paid-in surplus total 
less than $1 million when the stock is issued. Second, an individual or partnership must acquire 
the stock in exchange for cash or other property (but not stock and securities). Third, during the 
five tax years before a loss on a qualified stock is recognized, the small business corporation must 
obtain more than 50% of its gross receipts from sources other than passive income such as 
royalties, rents, dividends, interest, annuities, and stock or security transactions. The amount that 
may be deducted as an ordinary loss in a tax year is capped at $50,000 for single filers and 
$100,000 for joint filers. 
Uniform Capitalization of Inventory Costs 
Firms that earn income from the production, purchase, or sale of merchandise are required to 
keep inventories to account for the cost of goods sold in a tax year. This cost is subtracted from 
gross receipts in the computation of taxable income. In most cases, the cost of goods sold is 
determined by adding the value of a firm’s inventory at the beginning of the year to purchases of 
inventory items made during the year and subtracting that amount from the value of a firm’s 
inventory at the end of the year. 
IRC Section 263A requires business taxpayers that produce real or tangible property or buy such 
property for resale to “capitalize” (or include in the value of their inventories) both the direct and 
indirect costs of the property included in inventory. This provision, known as the uniform 
capitalization rule, was added to the federal tax code by the Tax Reform Act of 1986. In general, 
direct costs are considered to be the material and labor costs related to the production or 
acquisition of goods; indirect costs refer to all other costs incurred through the production or 
acquisition of goods (e.g., repair and maintenance of equipment and facilities; utilities; insurance; 
rental of equipment, land, or facilities; and some administrative costs). Taxpayers have some 
discretion in assigning indirect costs to property from production or purchase, but the cost 
allocation methods should yield results that make sense for particular trades or businesses. 
Some small firms are exempt from the uniform capitalization rule. Specifically, it does not apply 
to firms with average annual gross receipts of $25 million or less in the last three tax years that 
acquire tangible or intangible property for resale. This exemption is beneficial because eligible 
firms have lower administrative costs, face less complexity in complying with income tax laws, 
                                                 
17 For more information on SBICs, see CRS Report R41456, SBA Small Business Investment Company Program, by 
Robert Jay Dilger. 
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and can exercise more control over the timing of business expense deductions, opening up 
opportunities for tax deferral.18 
Simplified Dollar-Value LIFO Accounting Method for Small Firms 
As noted earlier, businesses that keep inventories to account for the cost of goods sold are 
required to determine the value of their inventories at the beginning and at the end of each tax 
year. Doing this item by item is time-consuming and costly; so many taxpayers use estimation 
methods based on certain item or cost flows. 
One such method is known as “last-in-first-out” (or LIFO). LIFO assumes that a firm’s most 
recently acquired goods are sold before all other goods. Consequently, LIFO assigns the most 
recent unit costs to the cost of goods sold and the oldest unit costs to the remaining inventory at 
the end of the year. The method is likely to be advantageous when the cost of many inventory 
items is rising, because it yields a lower taxable income and inventory valuation than other 
methods. There are various ways to use LIFO. One widely used application is known as the 
dollar-value method. Under it, a taxpayer accounts for the value of its inventory according to a 
pool of dollars rather than a pool of inventory items. Each dollar pool includes the value of a 
variety of inventory items and is measured by the dollar value of the items in the year when they 
were first added to the inventory. The dollar-value method is complicated and costly, putting it 
beyond the reach of many small firms.19 
IRC Section 474, which was added to the tax code by the Tax Reform Act of 1986, allows 
qualified small firms to use a simplified dollar-value LIFO method. It differs from the regular 
method in the pooling of inventory items and the estimation of the base-year value of pooled 
items. Firms with average annual gross receipts of $5 million or less in the three previous tax 
years may use the simplified LIFO method. 
Nonrefundable Tax Credit for Pension Plan Start-Up Costs of Small 
Firms 
Under IRC Section 45E, certain small firms may claim a nonrefundable tax credit for a portion of 
the start-up costs incurred in setting up new retirement plans for employees. The credit, which 
was enacted as part of the Economic Growth and Tax Relief Reconciliation Act of 2001, 
originally was scheduled to expire at the end of 2010. But the Pension Protection Act of 2006 
permanently extended it. It is a component of the general business credit under IRC Section 38 
and thus subject to its dollar limitations and rules for carryover. 
The credit is equal to 50% of qualified plan start-up expenses paid or incurred in each of the first 
three years a qualified pension plan is available. There is a dollar limit on the annual amount of 
the credit. Specifically, the credit is the greater of $500 or the lesser of $5,000 or $250 for each 
employee who is eligible to participate in a plan. This means the credit can be expected to range 
from $500 to $5,000, depending on the number of eligible employees. The Setting Every 
Community Up for Retirement Enhancement (SECURE) Act of 2019 (P.L. 116-94) increased the 
maximum credit from $500 a year to $5,000. 
                                                 
18 See Paul G. Schloemer, “Simplifying the Uniform Inventory Capitalization Rules,” Tax Notes, vol. 53, no. 9, 
December 2, 1991, pp. 1065-1069. 
19 For more details on this method, see U.S. Congress, Joint Committee on Taxation, Impact on Small Business of 
Replacing the Federal Income Tax, JCS-3-96, April 23, 1996, pp. 18-19. 
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The credit applies to the ordinary and necessary expenses of administering a plan and informing 
employees about its benefits and requirements. These include the costs of setting up a plan and 
operating it from day to day; operational expenses include recordkeeping and accounting, legal, 
and trustee services.20 Any new 401(k) plan, 403(a) annuity plan, savings incentive match plan for 
employees (SIMPLE IRA), or simplified employee pension plan qualifies for the credit. Only 
firms with fewer than 100 employees, each of whom received at least $5,000 in compensation in 
the previous year, may claim the credit. 
In effect, the credit gives qualified small firms an incentive to establish pension plans for 
employees by lowering the after-tax cost of setting up and administering these plans over the first 
three years they are available. As a 2010 SBA report pointed out, start-up costs can be 
considerable on a per-employee basis for companies with relatively few employees.21 Available 
data on pension benefits by employer size provide no clear evidence that the credit has increased 
the share of small employers offering pension plans. According to the Employee Benefit Research 
Institute (EBRI), the percentage of firms with fewer than 100 employees sponsoring pension 
plans was lower in 2013 than it was in 2002, the first year the credit was available.22  
Nonrefundable Tax Credit for Automatic Employee Enrollment in 
Small Employer Retirement Plans 
The SECURE Act added a second tax credit for qualified small employer retirement plans: IRC 
Section 45T. The credit is identical to the IRC Section 45E credit, except for the amount of the 
credit and its purpose.  
An eligible employer may claim an IRC Section 45T credit of $500 for each of the first three 
years it adds automatic enrollment to current or new employee retirement plans. It applies to the 
same plans as the IRC Section 45E credit does. Thus, an eligible employer could receive a total 
tax credit of $16,500 during the first three years it offers a qualified employee pension plan with 
automatic enrollment: three years of the maximum IRC Section 45E credit comes to $15,000 (3 x 
$5,000 per year) plus three years of the IRC Section 45T credit (3 x $500 per year).  
Employers with fewer than 100 employees, each of whom received at least $5,000 in 
compensation during the previous year, are eligible for the IRC Section 45T credit. Automatic 
enrollment leads to greater employee participation in employer plans.23 
                                                 
20 Yusi Lou and Anthony P. Curatola, “Taxes: Tax Credits for Pension Plan Start-Up Costs,” Strategic Finance 
Magazine, June 1, 2020. 
21 See Kathryn Kobe, Small Business Retirement Plan Availability and Worker Participation SBA Office of Advocacy, 
contract no. SBA-HQ-06M0477 (Washington: March 2010), p. 22. 
22 In 2013, according to an EBRI report, 10.3% of firms with fewer than 10 employees sponsored pension plans; the 
share in 2002 was 16.5%; for firms with 10 to 49 employees, the 2013 share was 24.0%, and the 2002 share 31.4%; and 
for firms with 50 to 99 employees, the 2013 share was 36.1%, and the 2002 share 46.9%. See Employee Benefit 
research Institute, “Employment-Based Retirement Plan Participation: Geographic Differences and Trends, 2013,” 
Issue Brief, no. 405 (Washington, Oct., 2014), Figure 2, p. 11; and “Employment-Based Retirement and Pension Plan 
Participation: Declining Levels and Geographic Differences,” Issue Brief, no. 262 (Washington: October 2003), Figure 
2, p. 7.  
23 Linda J. Blumberg, John Holahan, and Jason Levitis, How Auto-Enrollment Can Achieve Near-Universal Coverage: 
Policy and Implementation Issues, Urban Institute Issue Brief, June, 10 2021, https://www.urban.org/sites/default/files/
publication/26326/412723-Automatic-Enrollment-Employee-Compensation-and-Retirement-Security.PDF. 
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Nonrefundable Tax Credit for Expenses Paid or Incurred in 
Improving Business Access for Disabled Persons 
Under IRC Section 44, an eligible small firm may claim a nonrefundable tax credit for expenses 
incurred in making its facilities more accessible for disabled employees. The credit is equal to 
50% of eligible expenditures in a tax year above $250 but not greater than $10,250. A firm may 
claim no more than $5,000 of the credit in a tax year. In the case of a partnership and S 
corporation, this ceiling applies separately at the entity level, and at the partner or shareholder 
level. The disabled-access credit is a component of the general business credit under IRC Section 
38 and thus subject to its dollar limitations and rules for carrying the credit back and forward. 
A firm may claim the IRC Section 44 credit if, during its previous tax year, its gross receipts (less 
returns and allowances) totaled no more than $1 million, or its full-time workforce did not exceed 
30 persons. 
An eligible firm may also deduct (under IRC Section 190) up to $15,000 a year for qualified 
expenses for the removal of architectural or transportation barriers to accessing its facilities by 
elderly or handicapped persons. The deduction has to be reduced by the amount of any IRC 
Section 44 credit a taxpayer claims. 
Virtually any amount an eligible firm spends to bring its business into compliance with the 
Americans with Disabilities Act of 1990 (P.L. 101-336, ADA) qualifies for the credit. The 
expenses must be reasonable in amount and required by law. Eligible expenses include the cost of 
removing architectural, communication, transportation, or physical barriers to making a business 
more accessible to or usable by disabled individuals; providing interpreters or other effective 
methods of making materials understandable to hearing-impaired individuals; and supplying 
qualified readers, taped texts, and other effective methods of making materials understandable to 
visually impaired individuals. 
The credit is intended to lower the net cost to small firms of complying with ADA mandates, and 
to encourage them to hire more disabled persons. Although the credit has been available since 
1990, it remains unclear how effective it has been in achieving its intended goals of stimulating 
increased investment in making workplaces more accommodative to the special needs of disabled 
persons seeking employment.24 In a 2002 report, the then-named General Accounting Office 
(GAO) noted that it could find no studies of the effectiveness of the credit and that few businesses 
were even aware of it.25 It appears that no such studies have been done since 2002.  
Nonrefundable Tax Credit for Employee Health Insurance 
Expenses 
The Patient Protection and Affordable Care Act (ACA, P.L. 111-148) added a tax credit (IRC 
Section 45R) for small employers that make nonelective contributions to employee health plans. 
An employer’s contribution is nonelective if it does not lower participating employees’ salaries or 
wages. 
Eligible for-profit employers have been able to take the credit since 2010. From 2010 through 
2013, the maximum credit was equal to 35% of the lesser of the total amount of an employer’s 
nonelective payments during a tax year to a qualified employee health insurance plan through a 
                                                 
24 The credit was a component of the Omnibus Reconciliation Act of 1990 (P.L. 101-508). 
25 U.S. General Accounting Office, Incentives to Employ Workers with Disabilities Receive Limited Use and Have an 
Uncertain Impact, GAO-03-39 (Washington: December 2002), p. 19. 
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“contribution arrangement,” or the total amount of nonelective contributions that would have 
been made if each employee had enrolled in a qualified health plan with a premium equal to the 
average premium for the small-group market in the state where an employer is located. The credit 
does not apply to employer-paid premiums above the average premium for a state’s small-group 
market; it applies only to the average premium. 
Starting in 2014, an eligible for-profit employer may claim the credit for no more than two 
consecutive tax years (e.g., 2016 and 2017) if it offers one or more qualified health plans through 
a state-based health insurance exchange. Each state was required to establish such an exchange by 
2014. The maximum credit in 2014 and thereafter is equal to 50% of the lesser of  
  the total amount of employer contributions for qualified health plans offered 
through a health insurance exchange, or  
  the total amount of employer contributions that would have been made if each 
employee had enrolled in a qualified health plan with a premium equal to the 
average premium for the small-group market in the rating area where the 
employees receive coverage.  
In 2021, employers with 25 or fewer full-time employees who earn an average annual 
compensation of $55,600 or less can benefit in varying amounts from the credit; the full credit 
may be claimed only by employers with 10 or fewer full-time employees whose average annual 
compensation is $27,800 or less.  
The credit a firm may claim is phased out by the sum of the following two amounts: 
  amount of the credit multiplied by a fraction equal to the number of full-time 
employees above 10 divided by 15, and 
  amount of the credit multiplied by a fraction equal to a firm’s average annual 
wages above $27,800 (2021 only) divided by $27,800 (2021 only). 
Several rules governing use of the credit affect its effective rate. The credit is a component of the 
general business credit (GBC), and thus subject to its limitations. Unused GBCs may be carried 
back one year or forward up to 20 years. Any credit not used by the end of the 20-year carry-
forward period may be deducted in its entirety in the next tax year. Since 2011, employers have 
been able to take the credit against both the regular income and alternative minimum taxes. But to 
prevent employers from deriving two tax benefits from the same expenditures, any employer 
taking the credit must reduce its deduction for employer-paid health insurance premiums by the 
amount of the credit.  
The credit is intended to increase the number of small employers with low-to-medium wage 
employees that offer employee health insurance. Congress added the credit to the ACA in part to 
address long-standing concerns about gaps in domestic employer-provided health insurance 
coverage. While most large employers have offered health benefits to employees, a much smaller 
share of small employers have done so, and that share is even smaller for small employers with 
mostly low-wage workers. In 2020, for example, 99% of firms with 200 or more employees 
offered health insurance to employees, compared to 55% of firms with 3 to 199 employees.26 
Available evidence suggests that the IRC Section 45R credit’s impact has fallen short of initial 
expectations. According to the 2020 survey of U.S. employer health benefits by the Kaiser Family 
                                                 
26 See KFF, Employer Health Benefits: 2020 Annual Survey, p. 47, https://www.kff.org/report-section/ehbs-2020-
section-2-health-benefits-offer-rates/. 
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Small Business Tax Benefits: Current Law  
 
Foundation, 59% of firms with three to nine employees offered employee health benefits in 2010, 
the first year that the credit was available; that share had dropped to 48% by 2020.27 According to 
a 2016 GAO report, relatively few firms used the credit between 2010 and 2014, compared with 
its potential usage. GAO noted that initial estimates of the number of eligible firms ranged from 
1.4 million to 4 million, but total claims for the credit averaged only 183,200 between 2010 and 
2014.28 
GAO concluded that the credit was not large enough to convince large numbers of small 
employers to offer or maintain employee health benefits. It cited several reasons for this 
outcome.29 Relatively few employers qualify for the full credit. The credit phases out if a firm 
employs more than 25 people, or if its average annual wage exceeds an inflation-adjusted cap 
($55,600 in 2021). The credit covers the average premium in the small business market in the 
state where the firm is located; if a firm pays a premium above that amount, the credit does not 
apply to the excess. The credit is temporary: since 2014, it can be used only in two consecutive 
years. Some eligible firms may be deterred from claiming the credit because of its complexity and 
the recordkeeping required to compute it. 
Legislation to Expand or Enhance Small Business 
Tax Benefits in the 117th Congress 
A few bills have been introduced (but not acted on at the committee level) in the 117th Congress 
to enhance current small business tax benefits or establish new ones. The following table 
identifies those bills and summarizes the ways in which they would benefit small firms. The same 
criteria used to identify existing federal small business tax benefits are employed here to select 
qualified bills. Specifically, to be included in the table, a bill must provide one or more tax 
benefits targeted solely at small firms in more than one industry that meet the bill’s eligibility 
requirements. The list of bills is updated as necessary. 
Table 2. Small Business Tax Benefit Bills in the 117th Congress 
Bill Numbers 
Summary of Tax Benefit(s) 
H.R. 476 
Would enhance the Section 41 tax credit for qualified 
research expenditures for qualified research performed 
in designated “innovation centers” by (1) increasing the 
credit rate from 20% to 30% for the regular research 
credit, the university basic research credit, and the 
energy research credit; (2) raising the credit rate for 
the maximum alternative research credit from14% to 
21%; (3) making eligible employee training expenses 
incurred by firms located in an innovation center 
eligible for the Section 41 credit; and (4) expanding the 
range of small firms allowed to use up to $500,000 of 
their unused research credit to offset the employer’s 
share of the payrol  tax. 
                                                 
27 Ibid. 
28 U.S. Government Accountability Office, Small Employer Health Tax Credit: Limited Use Continues Due to Multiple 
Reasons, GAO-16-491T, March 22, 2016, pp. 4-6, https://www.gao.gov/assets/gao-16-491t-highlights.pdf. 
29 Ibid., pp. 5-10. 
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 link to page 24 Small Business Tax Benefits: Current Law  
 
Bill Numbers 
Summary of Tax Benefit(s) 
H.R. 885 
Would create a new tax credit (Section 45U) for 
purchases of specified personal protective equipment 
by eligible small firms in any year when the President 
declares a national emergency with regard to COVID-
19. The credit would be subject to an annual limit of 
$25,000 per taxpayer. The credit could be claimed by 
firms with fewer than 500 employees, firms that adhere 
to the size standards for federal assistance set by the 
Small Business Administration, sole proprietors, and 
independent contractors. The credit would become 
part of the general business credit under Section 38, 
and thus subject to its limitations. 
H.R. 2984/S. 1422 
Would establish a new tax credit (Section 45U) for 
firms of all sizes equal to 20% of the excess of current-
year qualified employee training expenses over average 
annual expenses in the three previous years. Eligible 
small firms that cannot use their entire current-year 
credit would have the option of applying as much as 
$250,000 of that credit to the employer share of 
payrol  taxes. Sole proprietors, partnerships, and C and 
S corporations whose gross receipts in the current tax 
year do not exceed $5 mil ion are eligible for this 
option. 
S. 1979 
Would expand the range of small firms eligible to apply 
unused Section 41 tax credits against the employer 
share of a firm’s payrol  taxes and raise the dol ar limit 
for such an offset. Specifically, the bil  would allow firms 
with current-year gross receipts up to $20 mil ion and 
no gross receipts in a tax year before the preceding 
eight tax years to benefit from this option. The bil  
would also increase the amount of unused Section 41 
credits that could offset payrol  taxes from $250,000 to 
$1 mil ion. 
S. 2387 
Would modify the Section 199A deductiona for eligible 
business income so that only pass-through business 
owners with taxable income below $500,000 could 
claim the deduction. No such limit exists under current 
law. This proposal has the potential to effectively limit 
use of the deduction to relatively small businesses. 
Source: Compiled by the Congressional Research Service. 
a.  For more information on the Section 199A deduction, see CRS Report R46402, The Section 199A Deduction: 
How It Works and Illustrative Examples, by Gary Guenther.  
 
 
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Small Business Tax Benefits: Current Law  
 
 
Author Information 
 
Gary Guenther 
   
Analyst in Public Finance 
    
 
 
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Congressional Research Service  
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