S. 559 (119th)Bill Overview

AIMM Act

Taxation|Taxation
Cosponsors
Support
Republican
Introduced
Feb 13, 2025
Discussions
Bill Text
Current stageCommittee

Read twice and referred to the Committee on Finance.

Introduced
Committee
Floor
President
Law
Congressional Activities
01 · The brief
Plain-English summaryWhat this bill actually does

The bill amends IRC section 163(j) to permanently allow taxpayers to include depreciation, amortization, and depletion when calculating the adjusted taxable income limitation on the business interest deduction. It removes the sunset language that had limited that allowance to taxable years beginning before January 1, 2022, making the rule apply to taxable years beginning after December 31, 2021.

Why people may split

Liberals emphasize revenue loss and unequal corporate benefits.

Watch point

Narrow, pro-business tax fix can attract support, but standalone revenue loss may face fiscal scrutiny.

The bill amends IRC section 163(j) to permanently allow taxpayers to include depreciation, amortization, and depletion when calculating the adjusted taxable income limitation on the business interest deduction.

It removes the sunset language that had limited that allowance to taxable years beginning before January 1, 2022, making the rule apply to taxable years beginning after December 31, 2021.

Passage35/100

Technically simple and targeted, but permanent revenue loss and lack of offsets reduce standalone prospects; likelier if folded into a larger tax package.

CredibilityPartial

How solid the drafting looks.

Contention60/100

Liberals emphasize revenue loss and unequal corporate benefits.

02 · What it does

Who stands to gain, and who may push back.

Likely benefits vs burdens50% / 50%
Likely helpedFederal agencies

These are examples from the analysis, not a ranked list of the most-affected groups.

Likely helped
  • Potential benefitIncreases allowable business interest deductions for firms with depreciation, amortization, or depletion expenses.
  • Potential benefitLikely benefits capital-intensive industries, including manufacturing and construction, with larger deductible interest.
  • Potential benefitImproves after-tax returns on capital investments, potentially encouraging equipment and facility investment.
Likely burdened
  • Federal agenciesReduces federal revenues compared with the scheduled reversion to the stricter limitation.
  • Potential burdenDisproportionately benefits larger or capital-intensive firms relative to service-oriented businesses.
  • Potential burdenMay incentivize greater use of debt financing, increasing corporate leverage and financial risk.
03 · Why people split

Why the argument around this bill splits.

Liberals emphasize revenue loss and unequal corporate benefits.
Progressive30%

Likely skeptical.

Views the change as a permanent corporate tax preference that reduces federal revenue and disproportionately benefits capital‑intensive firms.

Might acknowledge manufacturing support but would want offsets or progressive safeguards.

Likely resistant
Centrist60%

Cautiously inclined to support if fiscally responsible.

Sees value in giving predictable tax treatment to investment, especially manufacturing, but wants cost estimates and possible offsets to be fiscally prudent.

Split reaction
Conservative90%

Generally supportive.

Views permanent allowance as pro‑growth tax policy that reduces burdens on investment and provides long‑term certainty to manufacturers and Main Street businesses.

Leans supportive
04 · Can it pass?

The path through Congress.

Introduced

Reached or meaningfully advanced

Committee

Reached or meaningfully advanced

Floor

Still ahead

President

Still ahead

Law

Still ahead

Passage likelihood35/100

Technically simple and targeted, but permanent revenue loss and lack of offsets reduce standalone prospects; likelier if folded into a larger tax package.

Scope and complexity
24%
Scopenarrow
24%
Complexitylow
Why this could stall
  • No official cost estimate (CBO/JCT) included
  • Whether it would be bundled into a larger tax/finance bill
05 · Recent votes

Recent votes on the bill.

No vote history yet

The bill has not accumulated any surfaced votes yet.

06 · Go deeper

Go deeper than the headline read.

Included on this page

Liberals emphasize revenue loss and unequal corporate benefits.

Technically simple and targeted, but permanent revenue loss and lack of offsets reduce standalone prospects; likelier if folded into a larg…

Unlocked analysis

Pro readers get the full perspective split, passage barriers, legislative design review, stakeholder impact map, and lens-based policy tradeoff analysis for AIMM Act.

Go beyond the headline summary with full stakeholder mapping, legislative design analysis, passage barriers, and lens-by-lens tradeoff breakdowns.

Perspective breakdownsPassage barriersLegislative design reviewStakeholder impact map
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