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IRS audit revenue falls sharply after staffing cuts

IRS audit revenue falls sharply after staffing cuts

Money Moves

Treasury watchdog links enforcement decline to loss of nearly a third of examination staff

3 days ago: NPR and major outlets cover TIGTA findings

Overview

Updated 2 hours ago

In fiscal 2024, IRS audits brought in $10 billion. In fiscal 2025, they brought in $6.5 billion—a 35% drop documented by the Treasury Inspector General for Tax Administration (TIGTA) in an August 2026 report. The decline tracks a federal workforce reduction effort that cut the agency's examination and collection staff by more than 25% in a single year.

The loss compounds the so-called tax gap—the more than $700 billion in owed taxes that go uncollected annually, per the Yale Budget Lab. The group projects the staffing cuts will reduce federal revenue by nearly $600 billion over the 2026-2035 window. Total tax payments still hit a record $5.3 trillion in fiscal 2025, but enforcement capacity is shrinking at the moment it matters most.

Why it matters

Every dollar cut from IRS enforcement costs roughly $13 in uncollected taxes, widening the federal deficit.

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Key Indicators

35%
Decline in audit revenue, fiscal 2024 to 2025
Audit collections fell from $10 billion to $6.5 billion.
17,517
Examination and collection staff as of January 2026
Down from 27,217 at the end of fiscal 2024.
25%
Total IRS workforce reduction by September 2025
More than 25,000 employees retired, resigned, or were terminated.
$600B
Projected revenue loss from staffing cuts, 2026-2035
Yale Budget Lab estimate based on IRS return on enforcement investment.
$93.8B
Total IRS enforcement revenue, fiscal 2025
Down from $98.7 billion in fiscal 2024, a historic high.

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People Involved

Organizations Involved

Timeline

August 2022 September 2026

13 events Latest: 3 days ago Showing 8 of 13
Tap a bar to jump to that date
  1. NPR and major outlets cover TIGTA findings

    Latest Media

    National coverage highlights IRS staff cuts leading to uncollected taxes.

  2. TIGTA reports 35 percent audit revenue decline

    Report

    Watchdog documents enforcement decline in fiscal 2025 compliance study.

  3. Congress appropriates $11.2 billion for IRS

    Funding

    Enforcement allocation falls 8 percent from fiscal 2025 levels.

  4. Examination and collection staff falls to 17,517

    Metric

    Staffing drops from 27,217 at end of fiscal 2024 to 17,517.

  5. IRA enforcement funding fully exhausted

    Funding

    Final supplemental enforcement monies were spent during fiscal 2026's first quarter.

  6. IRS workforce down 25 percent

    Metric

    Over 25,000 employees retired, resigned, or were terminated during fiscal 2025.

  7. Collection and examination effects begin

    Operations

    IRS officials report workforce reduction impacts on collections operations from March onward.

  8. DOGE workforce reductions begin at IRS

    Policy

    Deferred resignation offers and probationary terminations reduce IRS staff sharply.

  9. Trump implements federal hiring freeze

    Policy

    Presidential memorandum halts hiring and starts early retirement initiatives.

  10. FY2024 enforcement revenue hits record $98.7 billion

    Metric

    Audit revenue peaks at $10 billion as staffing and collections peak.

  11. IRS restarts automated collection notices

    Operations

    Agency resumes sending nonfiler and balance-due notices paused during the pandemic.

  12. IRS begins major hiring push

    Operations

    Agency expands examination and collection staff using IRA funding.

  13. Inflation Reduction Act allocates $80 billion to IRS

    Legislation

    Congress approved major IRS funding to rebuild enforcement capacity and reduce the tax gap.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

1998-2000

1998 IRS Restructuring and Reform Act

After contentious Senate hearings on alleged IRS abuses, Congress passed the Restructuring and Reform Act, shifting the agency toward taxpayer rights. The law created new procedural requirements and shifted enforcement priorities.

Then

Audit rates fell sharply in the following years as the agency restructured its enforcement approach.

Now

Research later linked the enforcement decline to a measurable increase in the tax gap, particularly among high-income filers.

Why this matters now

Shows that policy-driven reductions in enforcement capacity produce measurable, long-lasting revenue effects—exactly what TIGTA is now documenting.

2011-2018

Post-2010 IRS budget cuts (2011-2018)

Congress reduced the IRS budget roughly 20 percent from its 2010 peak, even as the agency took on new responsibilities under the Affordable Care Act and foreign account reporting rules. Audit rates for wealthy taxpayers and corporations fell to historic lows.

Then

Enforcement revenue declined relative to the tax base, and the tax gap widened as audit coverage dropped.

Now

The IRS entered the pandemic with degraded capacity, a backlog problem, and the lowest audit rates in decades.

Why this matters now

The current staffing cuts replicate the post-2010 pattern at a faster pace: reduced capacity leads to fewer audits, which leads to more uncollected tax.

Sources

(11)