Analyst Brief September 14, 2026

H.R. 9498 — Taxpayer Advocate Participation Act

Executive Summary

The Taxpayer Advocate Participation Act amends the Internal Revenue Code to explicitly authorize the National Taxpayer Advocate (NTA) to file amicus curiae (friend of the court) briefs in federal tax cases. Under the status quo, the NTA's ability to independently represent systemic taxpayer interests in court is constrained by the Department of Justice's centralized control over government litigation, often muting the NTA's independent voice. By allowing the NTA to directly petition federal courts to appear on issues broadly affecting taxpayer rights, this bipartisan bill strengthens institutional guardrails against IRS overreach and ensures courts hear a dedicated taxpayer advocacy perspective.

Arguments For

  • Argument 1: Enhances taxpayer protections by ensuring an independent, institutional voice (the NTA) can weigh in on systemic tax issues in federal court without being muzzled by the IRS or DOJ.
  • Argument 2: Provides a clean, bipartisan political win on 'taxpayer rights' and government accountability, appealing to both anti-tax conservatives and pro-consumer protection liberals.

Likely Supporters

National Taxpayers UnionAmerican Bar Association (Tax Section)American Institute of CPAs (AICPA)

Arguments Against

  • Argument 1: The Department of Justice and Treasury historically oppose granting independent litigating authority to sub-agencies, arguing it fragments the Executive Branch's legal posture and complicates tax enforcement.
  • Argument 2: Could lead to increased litigation costs and delays in federal tax cases if the NTA frequently intervenes, potentially bogging down the judicial process.

Likely Opponents

Department of Justice (Tax Division)Department of the Treasury

📋 Key Provisions

  • Amends Section 7803(c)(2) of the Internal Revenue Code of 1986 to allow the National Taxpayer Advocate to appear as amicus curiae in federal tax cases.
  • Restricts the NTA's court appearances to presenting views only on issues that broadly affect the rights of taxpayers, specifically referencing the Taxpayer Bill of Rights.
  • Clarifies that federal courts retain the discretion to grant or deny the NTA's application to appear in any given action.
  • Establishes that the amendment takes effect immediately upon the date of enactment.
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Claim Analysis Page 2, Line 8

Authorizes the National Taxpayer Advocate to appear as amicus curiae.

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"payer Advocate may appear as amicus"

Claim Analysis Page 2, Line 15

Limits the NTA's advocacy to issues broadly affecting taxpayer rights.

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"to an issue which may broadly affect"

Claim Analysis Page 2, Line 19

Grants federal courts the authority to approve the NTA's application.

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"the United States may grant the applica-"