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Bill ends tax-exempt status for 'terrorist supporting organizations'

Gives the Treasury Secretary power to designate organizations that provided material support and strip their 501(c) status, inserting tax penalties into counter‑terrorism enforcement.

The Brief

This bill amends Internal Revenue Code section 501(p) by adding a new paragraph that enables the Secretary (Treasury) to designate an organization as a “terrorist supporting organization” and subject that entity to the suspension/termination mechanics already in 501(p). The designation is triggered if the Secretary determines the organization provided material support or resources during the prior three years above a de minimis level, using the material-support definition from 18 U.S.C. 2339B with two narrow exceptions (State Department‑approved activities and OFAC‑approved humanitarian aid).

The statute prescribes a detailed administrative process: Treasury must send written notice to the organization’s most recent address, allow a 90‑day “opportunity to cure” with specific remedies (including returning support and certifying nonrecurrence), permit administrative resolution through the IRS Independent Office of Appeals, and provide for exclusive federal court review with special handling for classified evidence. The change folds a national‑security determination into tax status consequences, creating immediate compliance and litigation implications for nonprofits, donors, and tax counsel.

At a Glance

What It Does

Adds a new paragraph to IRC section 501(p) authorizing the Secretary to designate organizations that provided material support to terrorist groups and to treat those entities under the suspension/termination rules in section 501(p). The designation process includes notice, a 90‑day cure window, administrative review via the IRS Independent Office of Appeals, and exclusive district court jurisdiction for certain judicial challenges, including procedures for classified evidence.

Who It Affects

501(c) organizations with any history of international activity, tax counsel, compliance officers, major donors, banks conducting AML/KYC reviews, and Treasury components that handle national security and tax enforcement. State Department and OFAC interactions matter because certain approvals create carve-outs.

Why It Matters

It creates a civil tax consequence directly tied to perceived terrorist support rather than criminal conviction or separate sanctions listing, accelerating reputational and financial penalties while embedding national‑security determinations in tax administration.

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What This Bill Actually Does

The bill inserts a new, stand‑alone procedure into the tax code for stripping tax exemption from organizations the Secretary finds provided material support to designated terrorist groups within the prior three years. Material support adopts the criminal‑law definition from 18 U.S.C. 2339B(g)(4) but explicitly excludes support that the State Department approved under that criminal statute and humanitarian assistance approved by OFAC.

Treasury constructs the factual predicate and then treats the organization as if it had triggered the existing suspension/termination machinery already used elsewhere in section 501(p).

Before designating an organization, Treasury must send a written notice to the address the organization filed with IRS forms (e.g., 990/6033). The notice must identify recipient groups, describe the support (unless disclosure would harm national security or law enforcement), and warn that the organization risks losing its exempt status unless it cures or contests the finding.

The recipient gets 90 days to respond with one of three options: show it did not provide the support, return the support and certify no future support, or—if disclosure was withheld for security reasons—file a federal court complaint challenging the withholding determination.If Treasury proceeds to designate, the statute makes two administrative remedies available: review by the IRS Independent Office of Appeals (treating the designation like an IRS action) and exclusive jurisdiction in U.S. district courts to review certain Secretary determinations. The bill expressly permits submission of classified material ex parte and in camera in judicial proceedings and directs Treasury to adopt internal procedures ensuring proper handling of classified information.

The law also builds in rescission paths—for erroneous designations, for organizations that didn’t receive notice, and for situations where the underlying suspension periods on recipient organizations have expired—while barring serial “return of funds” certifications within a five‑year window.

The Five Things You Need to Know

1

The bill defines a ‘terrorist supporting organization’ as any organization the Secretary finds provided material support to a paragraph (2) organization during the prior 3 years in excess of a de minimis amount.

2

Treasury must mail a written notice to the organization’s last IRS address and give a 90‑day cure period; failure to cure allows the Secretary to designate and trigger tax‑exemption suspension under section 501(p).

3

The material support definition tracks 18 U.S.C. 2339B(g)(4) but excludes State Department‑approved activities under that statute and humanitarian aid approved by OFAC.

4

Designated organizations may seek administrative resolution through the IRS Independent Office of Appeals and obtain exclusive district court review; classified evidence may be submitted to courts ex parte and in camera.

5

A certification that returned funds will not recur is invalid if the organization submitted any such certification within the prior 5 years, and rescission is available if the Secretary later deems the designation erroneous or notice was not received.

Section-by-Section Breakdown

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Paragraph (8)(A)

Application of section 501(p) mechanics to terrorist supporting organizations

This provision hooks the new definition into existing section 501(p) mechanics: once Treasury designates an organization, the statute treats that entity in the same categorical ways as other entities described in paragraph (2) and starts the suspension period described in paragraph (3) on the designation date. Practically, that means loss of exemption and related tax consequences follow administrative timelines already codified in 501(p), but the triggering event is a national‑security‑oriented designation rather than a purely tax violation.

Paragraph (8)(B)

Definition of 'terrorist supporting organization' and material‑support standard

This subsection sets the substantive threshold: material support as defined in 18 U.S.C. 2339B(g)(4) during a rolling 3‑year lookback that exceeds a de minimis level. It also establishes two statutory carve‑outs—activities expressly approved by State or OFAC—that function as safe harbors for some lawful diplomacy or humanitarian work. Organizations and counsel will need to map program activities to the criminal statute’s enumerated categories to assess exposure.

Paragraph (8)(C)

Designation notice and 90‑day opportunity to cure

Treasury must mail a written notice to the organization’s most recent IRS address that identifies recipient organizations, describes the alleged support (unless national security prevents disclosure), and warns of impending designation. The recipient then has 90 days to: prove the support didn’t occur, return the support and certify there will be no future support, or—if the description was withheld for security reasons—challenge the withholding in federal court. The clause also invalidates repeated 'return and certify' remedies within a 5‑year window, limiting serial cure use.

3 more sections
Paragraph (8)(D)

Rescission triggers

The Secretary must rescind a designation if it was erroneous, if an organization credibly shows it never received notice and meets cure conditions, or when suspension periods for all recipient groups have expired. The targeted rescission paths create discrete remedies but also embed factual gatekeeping—Treasury’s determinations about notice receipt and error are the primary switching points.

Paragraphs (8)(E) and (F)

Administrative appeals and exclusive federal court jurisdiction

Designated organizations can pursue dispute resolution through the IRS Independent Office of Appeals in the same manner as if the IRS made the designation, and the statute gives U.S. district courts exclusive jurisdiction for certain challenges (notably the withholding of descriptive information). The bill removes paragraph (5) limitations in certain respects to prioritize district court review and formalizes an appeals path that parallels tax‑administration procedures while recognizing national security sensitivities.

Paragraph (8)(G)

Classified information handling

Treasury must adopt policies ensuring Department of the Treasury employees comply with classified‑information laws; the statute separately authorizes courts to receive classified evidence ex parte and in camera. That dual track—internal classified‑handling rules plus judicial accommodation—signals the bill contemplates reliance on intelligence or law‑enforcement materials that cannot be publicly disclosed, but it leaves the specifics of protective measures and access to courts to agency rulemaking and judicial practice.

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Who Benefits and Who Bears the Cost

Every bill creates winners and losers. Here's who stands to gain and who bears the cost.

Who Benefits

  • Treasury and national‑security agencies — gain a civil tax tool to punish and deter organizations that provide support to designated terrorist groups without relying on criminal prosecution or separate sanctions listings.
  • Victims and counter‑terrorism policymakers — may see faster financial and reputational consequences for organizations linked to terrorist support, complementing criminal and sanctions regimes.
  • Banks and compliance officers — receive clearer statutory language tying tax‑exempt status to terrorism support, which may simplify internal risk classifications and SAR/filing decisions when coupled with Treasury determinations.

Who Bears the Cost

  • 501(c) nonprofits with international programs — face increased compliance risk, possible loss of tax exemption based on past conduct, and heightened due‑diligence burdens to document approvals or humanitarian OROFAC clearances.
  • Small charitable organizations and faith‑based groups — may lack resources to contest designations, return funds, or absorb the reputational damage and legal costs associated with a Secretary’s finding.
  • Treasury and the IRS — must allocate resources to investigate, issue notices, manage appeals through the Independent Office of Appeals, handle classified information securely, and defend designations in federal court, creating administrative and budgetary demands.

Key Issues

The Core Tension

The bill seeks to use tax law to disrupt terrorist financing quickly by tying exemption status to national‑security findings, but that accelerates punitive consequences while narrowing the factual tools available to organizations to defend themselves—forcing a trade‑off between effective counter‑terror measures and transparent, robust procedural protections for nonprofits.

The bill raises procedural and substantive implementation questions. First, the statute lets the Secretary withhold descriptive information from notice on national‑security grounds while still starting the 90‑day clock—forcing organizations to decide whether to litigate immediately or risk designation without full factual context.

Second, the use of the criminal statute’s ‘material support’ language in a civil tax context blurs lines: civil designations require different procedural protections than criminal prosecutions, and the bill does not specify the evidentiary standard the Secretary must meet to designate (preponderance, reasonable belief, or other), leaving major litigation points unresolved.

Operationally, the undefined ‘de minimis’ threshold and the five‑year bar on repeated return‑and‑certify remedies create hard edges that could produce uneven results across similar organizations. The statute’s reliance on State Department and OFAC approvals as safe harbors creates interagency coordination needs; absent clear processes for obtaining those approvals, legitimate humanitarian actors could be chilled.

Finally, allowing classified evidence into court ex parte and in camera protects sources but limits public transparency and may complicate an organization’s ability to meaningfully rebut assertions—raising constitutional and fairness questions that courts will likely have to confront.

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