Legal Sidebari 
 
Supreme Court’s Decision in CIC Services, 
LLC v. Internal Revenue Service Impacts Pre-
Enforcement Challenges to IRS Reporting 
Mandates 
July 12, 2021 
On May 17, 2021, the Supreme Court issued a unanimous decision i
n CIC Services, LLC v. Internal 
Revenue Service, narrowing the reach of th
e tax Anti-Injunction Act (AIA). The AIA provides that “no 
suit for the purpose of restraining the assessment or collection of any tax shall be maintained in any 
court.” The AI
A protects federal revenues and supports efficient tax administration by barring lawsuits 
seeking pre-enforcement judicial review of
 Department of the Treasury (Treasury) and Internal Revenue 
Service (IRS) administrative actions related to tax assessment or collection. Subject t
o a few exceptions 
that the Court
 deemed irrelevant in 
CIC Services, the AIA requires plaintiffs seeking to challenge the 
validity of a tax to file their lawsuits after paying the disputed tax and filing a claim for refund. 
In 
CIC Services, the petitioner, CIC Services, LLC (CIC), brought a lawsuit challenging the “lawfulness” 
of IRS Notice
 2016-66 (Notice). The Notice designates
 micro-captive transactions as transactions of 
interest due to their “potential for tax avoidance or evasion” and imposes reporting requirements on both 
taxpayers participating in them and their material advisors, such as CIC. If CIC were to fail to comply 
with the Notice’s reporting mandate, the government could subject CIC to civil
 tax penalties and criminal 
penalties under the Internal Revenue Code (IRC). CIC sought relief in the form of an injunction against 
enforcement of the Notice, arguing primarily that the IRS did not comply with t
he Administrative 
Procedure Act’s notice-and-comment requirements when issuing the Notice. The government contended 
that the pre-enforcement lawsuit was barred by the AIA because, if successful, the lawsuit’s effect would 
be to “restrain the assessment or collection” of
 the tax penalties. However, the Supreme Court held that 
the AIA did not bar pre-enforcement judicial review of the Notice that was “backed by” tax penalties 
because CIC’s lawsuit challenged the Notice’s “reporting mandate separate from any tax.” 
This Legal Sidebar summarizes the Supreme Court’s opinion in 
CIC Services and concludes with 
considerations for Congress. 
Congressional Research Service 
https://crsreports.congress.gov 
LSB10619 
CRS Legal Sidebar 
Prepared for Members and  
 Committees of Congress 
 
  
 
Congressional Research Service 
2 
The Purpose of the Lawsuit Controls Whether the AIA Applies 
In CIC Services, the Supreme Court framed the question presented as whether the purpose of CIC’s 
lawsuit was to stop the assessment or collection of a tax. If so, the AIA would require that the case be 
dismissed.  In that event, CIC would have to violate the reporting requirements and wait for the IRS to 
impose the penalties backing the Notice in order to contest the Notice’s lawfulness. On the other hand, if 
the purpose of CIC’s lawsuit was “something other” than stopping the assessment or collection of a tax, 
then CIC’s case could proceed. 
The Court explained that when determining a lawsuit’s purpose, the Court does not look at a plaintiff’s 
subjective motive. Instead, the Court looks at the plaintiff’s “objective aim.” Reviewing CIC’s complaint 
on its face, the Court observed: (1) CIC had contested t
he legality of the Notice, but had not contested the 
legality of the statutory tax penalties; (2) CIC had requested injunctive relief from the Notice’s reporting 
requirements, but had not asked the court to block the potential tax penalties; and (3) CIC had “barely 
mention[ed]” the tax penalties that backed the Notice. As a result, the Court concluded that the complaint 
supported CIC’s assertion that the lawsuit’s purpose was to enjoin the Notice’s reporting mandate.  
Writing for the Court, Justice Kagan remarked that deciding 
CIC Services would be a “cinch” if, as in
 
Direct Marketing Assn. v. Brohl, the petitioner were challenging a reporting mandate and a “downstream 
tax penalty did not exist.” In 
Direct Marketing, the Court held that t
he Tax Injunction Act, a statute 
modeled on the AIA that limits injunctive relief to “enjoin, suspend or restrain the assessment, levy or 
collection” of a state tax, did not bar a petitioner’
s challenge to a Colorado law’s reporting requirements. 
In 
CIC Services, the Court
 reinforced its holding in 
Direct Marketing,
 making plain that “[a] reporting 
requirement is not a tax; and a suit brought to set aside such a rule is not one to enjoin a tax’s assessment 
or collection.” Building on its reasoning in 
Direct Marketing, the Court determined that a lawsuit 
challenging reporting requirements does not become a lawsuit to restrain tax assessment or collection 
simply because the challenged reporting requirements might raise future tax revenue by making it easier 
for the government to identify “sham insurance transactions.”  
The Court disagreed with the government’s argument that a lawsuit to challenge the validity of the Notice 
was the same as one to preclude tax assessment or collection. It acknowledged that if the government’s 
characterization were true, no amount of artful pleading would permit CIC to prevail. Even so, the Court 
ruled  that  three  aspects  of  the  regulatory  scheme,  when  taken  together,  “refute[d]  the  idea”  that  CIC’s 
lawsuit was a “tax action in disguise.”  
First, the Notice imposes affirmative obligations on material advisors. The Notice itself does not levy a tax, 
but  inflicts  costs  “separate  and  apart”  from  the  statutory  tax  penalties.  It  requires  material  advisors  to 
“collect and submit detailed information about micro-captive transactions and their participants.” The Court 
characterized these affirmative obligations as “independently onerous reporting mandates,” and suggested 
that the costs of complying with the Notice could surpass the costs of the tax penalties for violating the 
Notice. The Court also noted that CIC had estimated it would spend “hundreds of hours of labor and in 
excess of $60,000 per year” to comply with the Notice. Thus, the Court concluded that CIC’s complaint 
was  evidence that  CIC  brought  its  lawsuit  “to  get  out  from  under the (non-tax)  burdens  of  a (non-tax) 
reporting obligation,” and that not having to “worry” about the tax penalties was an “after-effect.” 
Second, the Notice’s reporting requirements and the tax penalties were “several steps removed from each 
other.” That is to say, the connection between the two was too attenuated. A material advisor would be liable 
for the tax penalty if, and only if: (1) the material advisor withheld information required by the Notice; (2) 
the IRS determined that the material advisor had violated the Notice; and (3) the IRS made the “entirely 
discretionary”  decision to  impose  a  tax penalty. The Court  stated  that it  was  “hard”  to  characterize  the 
lawsuit’s purpose as one to restrain a tax given that CIC stood “nowhere near the cusp of tax liability.” The 
Court declared, the “river runs long” between the “upstream Notice” and the “downstream tax.” 
  
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Third, the punishment for violating the Notice can include criminal penalties under IRC Secti
on 7203. That 
Section provides that a material advisor who “willfully” violates the reporting requirements is guilty of a 
misdemeanor  and  could  be  subject  to  criminal  fines  or  imprisonment  up  to  a  year,  or  both.  This  fact 
“clinched” the Court’s decision to characterize the purpose of the lawsuit as one to set aside the Notice, as 
opposed to one brought to restrain a tax penalty. The Court explained that criminal penalties are the reason 
“why an entity like CIC must bring an action in just this form, framing its requested relief in just this way.” 
As discussed above, if the AIA precluded  CIC’s lawsuit, CIC could not  challenge the Notice’s validity 
unless it first violated the Notice, paid a penalty, and then sued for a refund. The Court expressed concern 
that such a procedure would require one to break the law “at the start,” and stated that this “is not the kind 
of thing an ordinary person risks, even to contest the most burdensome regulation.” The Court noted that 
none of its other AIA cases require a challenger to follow a “pay-now-sue-later” procedure that exposes the 
challenger to criminal penalties.  
The Court dismissed the government’s argument that criminal liability would not attach to a taxpayer or 
advisor that violates the Notice in “good faith” because the taxpayer or advisor would not be “willful” under 
IRC Section 7203. Quoting
 Cheek v. United States, the Court stated, “We have held in no uncertain terms 
that  ‘a  defendant’s  views  about  the  validity’  of  a  tax  provision—even  if  held  ‘in  good  faith’—do  not 
‘negate[ ] willfulness or provide[ ] a defense to criminal prosecution.’” Thus, the Court concluded that the 
criminal penalties under IRC Section 7203 “practically necessitated” a pre-enforcement lawsuit that sought 
an injunction against the Notice, because it was the only procedure that yielded relief from the Notice’s 
reporting requirements without subjecting CIC to criminal liability.  
After reviewing these three aspects of the Notice’s regulatory scheme, the Court held that the AIA did not 
bar pre-enforcement judicial review of CIC’s claims. The Court explained that the facts of the case “readily 
explain[ed]” why the purpose of CIC’s lawsuit was the “upstream reporting mandate, not the downstream 
tax.” The Court also remarked that nothing in CIC’s complaint “smacks of artful pleading.” 
The Future of Pre-Enforcement Tax Litigation 
In 
CIC Services, the Supreme Court also addressed fears that a decision in CIC’s favor would “enfeeble” 
the AIA. Previously, the government and some tax experts expressed concern that a decision in favor of 
CIC would shift tax litigation from refund lawsuits to pre-enforcements lawsuits, hinder the IRS’s ability 
to assess taxes, and lead to a decline in the amount of taxes collected. The government argued that a 
decision in CIC’s favor would open the floodgates to pre-enforcement tax litigation. The Court stated that 
these concerns were “overstate[d],” and underscored the nature of its ruling.   
The Court stressed that CIC’s lawsuit fell outside the AIA’s domain, as CIC’s lawsuit did “not run against 
a tax at all.” Instead, CIC’s lawsuit challenged the Notice’s reporting requirements “separate from any 
tax.” The Court reiterated that when a dispute is about the validity of a tax, not an 
independent rule 
prohibiting or commanding an action that is backstopped by a tax penalty, then, as set out in the AIA, the 
“sole recourse is to pay the tax and seek a refund.” The Court also differentiated a revenue-raising tax 
from a regulatory tax. It defined a regulatory tax as “a tax designed mainly to influence private conduct, 
rather than to raise revenue.” Regardless of whether the tax is a regulatory tax or a revenue-raising tax, 
the Court held that the AIA prevents pre-enforcement judicial review of challenges to the tax’s validity.   
Considerations for Congress 
The impact of the Court’s decision in 
CIC Services is unclear. For example, it is unclear whether the 
Court would have ruled the
 same way if CIC was a taxpayer participating in a reportable transaction as 
opposed to a material advisor. Presumably the costs of complying with the Notice would be less for a 
taxpayer than a material advisor, and it is arguable that there would be fewer steps between the upstream 
Notice and a downstream tax. In addition, despite CIC’s success in 
CIC Services, CIC could still lose on
  
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 the merits. In 
Mann Construction, Inc. v. United States, a district court held that another reportable 
transacti
on notice, concerning a transaction that the IRS designated 
a listed transaction, was not subject to 
the Administrative Procedure Act’s notice-and-comment requirements because Congress had “authorized” 
the IRS to issue the notice without notice and comment.   
If Congress imposes a tax on a prescribed reportable transaction, then there might be a different outcome 
in cases like 
CIC Services—the AIA may bar judicial review of pre-enforcement challenges. The Court’s 
opinion suggests that the AIA would have barred pre-enforcement judicial review of CIC’s challenge if 
Congress imposed a tax on the micro-captive transactions themselves or Congress had delegated that 
authority to Treasury, instead of simply providing Treasury with the authority to issue guidance requiring 
reportable transaction disclosures and backing that guidance with statutory penalties. Under the current 
reportable transaction scheme, Treasury has statutory
 authority to promulgate regulations that require 
material advisors to make certain reportable transaction disclosures and has statutory
 authority to subject 
any person liable for a tax, or a collection of a tax, under the IRC to “make a return or statement 
according to the forms and regulations prescribed by the Secretary.” Treasury has used its authority to 
promulgate Treasury Regulation Secti
on 1.6011-4, which requires persons to disclose certain reportable 
transactions as “identified by notice, regulation, or other form of published guidance.” Treasury published 
the Notice at issue in 
CIC Services pursuant to Treasury Regulation Section 1.6011-4. The Court viewed 
the statutory tax penalties and criminal penalties that backed the Notice’s reporting mandate as separate 
and independent statutes that merely operated as sanctions for noncompliance with the Notice, and 
consequently concluded that the AIA did not apply. 
 
 
Author Information 
 Milan N. Ball 
   
Legislative Attorney  
 
 
 
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