HR 998 · 119th Congress · Enacted as 119-39

Internal Revenue Service Math and Taxpayer Help Act

IRS noticestax administrationtaxpayer rightsmath error noticestax refunds
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Last action 2025-11-25

Sponsored by Rep. Feenstra, Randy [R-IA-4] (R) — IA

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The law requires the IRS to include more detailed information in notices about math or clerical errors on tax returns, including a plain-language description of the error, an itemized computation of adjustments, and the deadline to request an abatement.

It also directs the IRS to create clear procedures for taxpayers to contest these errors and to pilot sending some notices by certified or registered mail to see if that improves taxpayer response.

What this law does

What it does

The law amends the Internal Revenue Code's math-error notice provision to require the IRS to give taxpayers a comprehensive, plain-language description of any math or clerical error, including the error type, the relevant code section, and the specific tax return line affected. Notices must include an itemized computation of resulting adjustments to income, deductions, credits, taxes, and refunds, a phone number for the automated transcript service, and a prominently displayed deadline for requesting an abatement. The IRS must also send a separate notice when it grants an abatement, describing it in plain language with itemized adjustments. The law further requires the IRS to establish procedures for requesting an abatement in writing, electronically, by phone, or in person, and to run a pilot program sending some error notices by certified or registered mail with e-signature confirmation, reporting results to Congress. It does not change the underlying tax rules that generate these errors.

Key provisions

  1. 1Requires IRS math or clerical error notices to include a plain-language error description, affected return line, and itemized adjustment computationSec. 2(a)
  2. 2Requires the abatement deadline to be displayed in bold, size-14 font next to the taxpayer's address on page 1 of the noticeSec. 2(a)
  3. 3Requires the IRS to send a separate plain-language notice, with itemized adjustments, when it grants an abatementSec. 2(b)
  4. 4Requires Treasury to establish procedures for requesting an abatement in writing, electronically, by phone, or in personSec. 2(d)
  5. 5Requires a pilot program sending a statistically significant sample of error notices by certified or registered mail with e-signature confirmationSec. 2(e)
  6. 6Requires a report to Congress on the pilot program's error volumes, abatement amounts, and effect on taxpayer responseSec. 2(e)(2)

Who is affected

Taxpayers who receive IRS notices about math or clerical errors on their federal tax returns, and the Internal Revenue Service and Department of the Treasury staff who must redesign notices, build abatement-request procedures, and run the certified-mail pilot program.

Why it matters

Taxpayers currently sometimes receive vague error notices that are hard to understand or respond to before the abatement deadline passes. The added detail and clearer procedures are intended to help taxpayers understand what changed on their return and preserve their right to contest an error before it becomes a final assessment.

What changed

Changes to existing law

Amends 26 U.S.C. § 6213(b)(1) (Sec. 2(a))

Adds detailed content and formatting requirements for math or clerical error notices, including plain-language descriptions and itemized adjustments.

Amends 26 U.S.C. § 6213(b)(2) (Sec. 2(b))

Adds a requirement that the IRS send a plain-language notice with itemized adjustments when an abatement is granted.

Agencies directed to act

Internal Revenue ServiceDepartment of the Treasury

Effective dates

  • New math/clerical error and abatement notice content requirementsSec. 2(c)Within 12 months of notices sent after enactment
  • Procedures for requesting an abatement of tax assessed due to an errorSec. 2(d)Within 180 days of enactment
  • Pilot program for certified/registered mail notices and related report to CongressSec. 2(e)Within 18 months of enactment

Funding and costs

Congressional Budget Office estimate

CBO estimates that H.R. 998 would have no significant effect on the federal budget over the 2025–2035 period.

H.R. 998, the Internal Revenue Service Math and Taxpayer Help Act, would require the IRS to notify taxpayers about mathematical or clerical errors on their tax returns, update the procedures for requesting abatements (a formal process to dispute and resolve such errors), and provide notice of those abatements. The bill would also direct the IRS to establish a pilot program exploring alternative ways to deliver error notices to taxpayers. CBO found that implementing these administrative and procedural changes would have no significant budgetary effect. CBO did not identify any intergovernmental or private-sector mandates in the bill.

View the full CBO cost estimate

How it works

The IRS must apply the new notice-content requirements to notices sent starting 12 months after enactment. Within 180 days of enactment, Treasury must establish procedures allowing taxpayers to request an abatement in writing, electronically, by phone, or in person. Within 18 months of enactment, Treasury, consulting the National Taxpayer Advocate, must launch a pilot sending a statistically significant sample of error notices by certified or registered mail with e-signature confirmation, then report to Congress on error volumes, abatement amounts, and taxpayer response, with recommendations on mail methods.

Legislative status & sources

Latest action

Became Public Law No: 119-39.

2025-11-25

Official CRS summary

Show the CRS summary

This act requires the Internal Revenue Service (IRS) to provide specific information on a notice related to a math or clerical error, send a notice related to an abatement of taxes assessed due to a math or clerical error, provide procedures for requesting such an abatement, and implement a pilot program for sending notices of a math or clerical error.

Under the act, a notice sent by the IRS regarding a math or clerical error must include

  • a clear description of the error, including the type of error and the specific federal tax return line on which the error was made;
  • an itemized computation of adjustments required to correct the error;
  • the telephone number for the automated transcript service; and
  • the deadline for requesting an abatement of any tax assessed due to the error.

Further, the act requires the IRS to send a notice related to an abatement of tax assessed due to a math or clerical error that clearly describes the abatement and includes an itemized computation of adjustments to be made to the items described in the notice of the error.

This act also requires the IRS to

  • provide procedures for requesting in writing, electronically, by phone, or in person an abatement of tax assessed due to a math or clerical error;
  • implement a pilot program to send notices of a math or clerical error by certified or registered mail; and
  • report to Congress certain information about the pilot program.

From the Congressional Research Service.

Legislative subjects

Congressional oversight; Income tax rates; Tax administration and collection, taxpayers; Tax reform and tax simplification; Taxation

Committee report

H. Rept. 119-42

Congressional Bill

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HR 998: Internal Revenue Service Math and Taxpayer Help Act | Legislation Reporter