

 
Updated February 6, 2019
Defense Primer: Military Retirement
The military retirement system is a government-funded, 
years (36 months) of basic pay. With the exception of those 
noncontributory, defined-benefit system that has 
opting into the Redux system, the multiplier for current 
historically been viewed as a significant retention incentive 
retirees is 2.5%. For those entering service on January 1, 
for military personnel. The system currently includes 
2018 the multiplier will be 2.0%. The basic formula for 
monthly compensation for qualified active and reserve 
calculating retired pay is:  
retirees, disability benefits for those deemed medically unfit 
YOS x multiplier x retired pay base 
to serve, and a survivor annuity program for the eligible 
survivors of deceased retirees. The amount of compensation 
For a member who retired in 2017 with 20 YOS, retired pay 
depends on years of service (YOS), basic pay at retirement, 
is 50% of the average of the individual’s highest 36 months 
and annual Cost-of-Living-Adjustments (COLAs). 
of pay. If another member with 30 YOS retired in 2017, 
retired pay is 75% of the high-three average. A service 
What is the Purpose of the Military 
member who entered service in 2018 and retires in 2038 
Retirement System? 
with 20 YOS will receive 40% of the high-three average 
The non-disability military retirement system for active 
and one who retires with 30 YOS in 2048 will receive 60% 
duty members has evolved since the late 1800s to meet four 
of the high-three average.  
main goals. 
How is Disability Retired Pay Calculated? 
  To keep the military forces of the United States young 
A service member retired for disability may select one of 
and vigorous and ensure promotion opportunities for 
two available options for calculating their monthly retired 
younger members. 
pay; (1) the longevity formula for regular retirement:  
  To enable the armed forces to remain competitive with 
YOS x multiplier x retired pay base.  
private-sector employers and the federal Civil Service.  
  To provide a reserve pool of experienced military 
Or, (2) the disability formula: 
manpower as a “retired reserve” that can be recalled to 
active duty in time of war or national emergency. 
DOD disability percentage x retired pay base. 
  To provide economic security for former members of 
The maximum retired pay calculation under the disability 
the armed forces during their old age. 
formula cannot exceed 75% of basic pay. 
Who is Eligible for Retired Pay? 
Figure 1. Retirement System Eligibility 
Eligibility for non-disability retired pay depends on years of 
service (YOS). In order to be vested in the defined benefit, 
a member must complete 20 years of qualifying service. For 
active component members this is one calendar year, and 
for reserve component members, it is a year in which the 
member earns at least 50 retirement “points.”  
Service members determined to be unfit for continued 
service and who have a permanent and stable disqualifying 
physical condition may qualify for disability retirement, 
commonly referred to as a Chapter 61 retirement. Eligibility 
is based on having a permanent and stable disability of 30% 
or more that was not noted at the time of entrance on active 
duty. As a result, these members might retire without 
having reached the 20-year mark. 
How is Regular Retired Pay Calculated? 
Retirement pay calculations for active duty personnel are 
based on the date when the service member first entered on 
active duty, the pay base at the time of retirement, and a 
multiplier as defined by statute. Changes in law have 
 
Source: CRS Report RL34751, Military Retirement: Background and 
created four distinct systems for calculating retired pay: (1) 
Recent Developments, by Kristy N. Kamarck  
Final Basic Pay, (2) High-Three, (3) Redux, and (4) 
Blended Retirement System. Currently the pay base is 
either the final pay at retirement or average of the highest 3 
https://crsreports.congress.gov 
Defense Primer: Military Retirement 
Table 1. Comparison of Benefits under the Military Retirement Systems 
Category 
Final Basic Pay 
High Three 
Redux 
Blended System 
Defined Benefit  
Yes, 20 or more YOS 
Yes, 20 or more YOS 
Yes, 20 or more YOS 
Yes, 20 or more YOS 
Defined Benefit 
2.5% per YOS 
2.5% per YOS 
2.5% per YOS, less 1% 
2.0% per YOS 
Multiplier 
for each year of 
service less than 30  
Annuity at 20 YOS 
50% of final basic pay 
50% of high-3 average 
40% of high-3 average 
40% of high-3 average 
Defined 
No 
No 
No 
Yes, 1% automatic, plus up to 4% 
Contribution 
matching, starting at 2 YOS 
Continuation 
No 
No 
Yes, at 15 years w/5-
Yes, between 8 to 12 YOS with 
Incentive 
year obligation 
3-year obligation 
Lump Sum Option 
No 
No 
No 
Yes 
Source: Adapted by CRS from Military Compensation Background Papers, Seventh Edition, Nov. 2011, and FY2016 NDAA (P.L. 114-92).
How is it Funded? 
How is Retired Pay Distributed? 
Congress appropriates the funds required to pay future 
Active duty retirees begin receiving their monthly annuity 
retirees in the annual defense appropriations bill. This 
from the Defense Finance and Accounting Service (DFAS) 
money is transferred to the Military Retirement Fund 
on the first business day of the month following their 
(MRF), from which current retirees are paid. Under this 
retirement. Reserve retirees are generally not eligible to 
accounting method, legislation that affects future retirees 
receive retired pay until they reach age 60. However, the 
has present-day budget implications. The DOD actuary 
age requirement may be reduced for members of the Ready 
determines the amount of appropriations required based on 
Reserve who were recalled to active duty or were called to 
economic and demographic projections. Currently, for 
certain active service after January 28, 2008. Reserve 
every dollar of basic pay provided to active duty military 
retirees who have accumulated enough qualifying years of 
personnel, DOD contributes approximately an additional 32 
service to be eligible for retired pay, but are not yet 
cents into the MRF for future retirees under the legacy 
receiving retired pay are sometimes called gray area 
system and 24 cents for those under the BRS.  
retirees. Retired pay is taxable, and DFAS withholds 
appropriate taxes as well as deductions for retired pay 
What Are Differences Under the 
waived in offset of veteran disability benefits, and survivor 
Blended System? 
benefit program premiums. 
The National Defense Authorization Act for FY2016 (P.L. 
 
114-92) made significant changes to the military retirement 
Relevant Statute 
system for those entering the service on or after January 1, 
2018. All other servicemembers are grandfathered into the 
Title 10, U.S. Code, Chapters 61 - 73, and Chapter 1223 
current system. Those with less than 12 years of service 
 
prior to January 1, 2018 were offered the opportunity to opt 
into the new system.  
CRS Products 
CRS Report RL34751, Military Retirement: Background and 
The main change in the blended system is that it will 
Recent Developments, by Kristy N. Kamarck  
include defined contributions from the government in 
CRS Report R40589, Concurrent Receipt: Background and Issues 
addition to defined benefits. While the 20 YOS requirement 
for Congress, by Kristy N. Kamarck  
for the defined annuity remains in the new system, the 
multiplier for this benefit is reduced from 2.5% to 2.0%. In 
CRS Report R45325, Military Survivor Benefit Plan: Background 
the new system, the government will make automatic 1% 
and Issues for Congress, by Kristy N. Kamarck and Barbara 
contributions to a service member’s individual Thrift 
Salazar Torreon  
Savings Plan (TSP) and up to an additional 4% matching 
 
contributions. 
Other Resources 
The blended system also includes a continuation payment 
Statistical Report of the Military Retirement System, DOD 
as a retention incentive at the member’s mid-career point 
Office of the Actuary 
(8-12 YOS). Calculations for this benefit differ for active 
Valuation of the Military Retirement System, DOD Office of 
and reserve component members and the law provides some 
the Actuary 
flexibility to vary the payment amount based on the 
Services’ manpower needs. Acceptance of the continuation 
 
benefit incurs an additional 3-year minimum obligation of 
Kristy N. Kamarck, Analyst in Military Manpower   
service. 
IF10483
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Defense Primer: Military Retirement 
 
 
Disclaimer 
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