Individual Income Tax Rate Reduction

Current Status

Existing Law: Internal Revenue Code Subtitle A (26 U.S.C. §§ 1-1564). Tax Cuts and Jobs Act of 2017 (P.L. 115-97) established current rate structure through 2025¹.

Current Authority: IRS administers income tax collection. Treasury issues regulations. Congress sets rates and brackets.

Existing Limitations: Seven-bracket rate structure with rates of 10%, 12%, 22%, 24%, 32%, 35%, and 37%. Standard deduction of $14,600 (single) / $29,200 (married filing jointly) for 2024. TCJA provisions scheduled to sunset December 31, 2025, reverting to higher pre-2018 rates².

Problem

Specific Harm: The current 10% and 12% brackets impose meaningful tax burden on working families with modest incomes. A family earning $50,000 faces approximately $3,500 in federal income tax on income above the standard deduction. TCJA sunset would increase bottom bracket from 10% to 15% and eliminate expanded standard deduction, raising taxes on 65% of households³.

Who is Affected: 100 million households in the bottom two tax brackets. Working families earning $20,000-$100,000 bear proportionally higher total federal tax burden when payroll taxes are included. Single earners face "marriage penalty" at certain income levels⁴.

Gaps in Current Law: Bottom bracket rate unchanged since 2001 despite inflation⁵. No automatic indexing of bracket thresholds beyond CPI adjustment. TCJA created temporary rather than permanent rate structure.

Accountability Failures: Rate structure embedded in complex code rather than simple statutory statement. Bracket creep erodes purchasing power over time. Congress uses sunset provisions to obscure long-term fiscal impact.

Proposed Reform

Primary Policy Change: Reduce the bottom individual income tax bracket from 10% to 9% and the second bracket from 12% to 11%. This provides approximately $40 billion annually in tax relief to working families while maintaining the progressive rate structure⁶.

New Requirements: Permanent codification of reduced rates (not subject to sunset provisions). Inflation indexing of bracket thresholds using Chained Consumer Price Index for All Urban Consumers (C-CPI-U) with adjusted amounts rounded to nearest $50. Annual Treasury report on effective tax rates by income decile submitted to Congress by March 1 each year, including average effective rates, total tax liability by decile, comparison to prior years, and distributional analysis of any rate or bracket changes. Updated withholding tables issued within 90 days of enactment. Employer guidance provided no later than 60 days prior to effective date.

New Prohibitions: None.

Enforcement: Standard IRS enforcement. Withholding table updates within 90 days of enactment.

Definitions: Chained CPI - Chained Consumer Price Index for All Urban Consumers (C-CPI-U) as published by the Bureau of Labor Statistics.

What Changes

Before: Bottom bracket 10%. Second bracket 12%. Rates scheduled to increase upon TCJA sunset in 2025. Working family earning $60,000 (married) pays approximately $3,000 in income tax on income above standard deduction.

After: Bottom bracket 9%. Second bracket 11%. Rates made permanent. Working family earning $60,000 (married) pays approximately $2,700 in income tax (saves $300 annually). Single worker earning $45,000 saves approximately $200 annually.

ROI

Costs:

Item	10-Year
Bottom bracket reduction	$200B
Second bracket reduction	$200B
Total Revenue Loss	$400B

Savings:

Item	Gross	Capture	Net
Direct Revenue Loss	$40B annual	100%	$40B annual

Societal Benefits:

Benefit	Annual	NPV (3%)	NPV (7%)
Tax relief for 100M households	$40B	$342B	$280B
Increased consumer spending	$36B	$308B	$252B
Permanent rate certainty	$5B	$43B	$35B

Summary:

Category	10-Year	Notes
Net Cost	-$400B	Revenue reduction (-$40B annually)
Beneficiaries	100M households	Average savings $300-400 per family
Tax Rate Impact	1 percentage point	Reduction for bottom two brackets

Federal Budget Impact: -$40 billion annual revenue reduction. This is a deliberate policy choice to reduce tax burden on working families. The SA-Automate framework's other revenue measures (consumption tax, enforcement, etc.) generate sufficient surplus to accommodate this reduction while maintaining fiscal responsibility.

Societal Benefits: Tax relief for 100 million households. Average savings of $300-400 for families in affected brackets. Increased disposable income supports consumer spending. Permanent rate certainty improves household financial planning.

Summary: Net impact of -$40 billion annually in federal revenue. This targeted relief for 100 million working households is a policy priority, not a gap to be closed. The framework's overall revenue position remains strongly positive.

References

1. Tax Cuts and Jobs Act of 2017 (P.L. 115-97) § 11001
2. Congressional Budget Office Budget and Economic Outlook (2024)
3. Joint Committee on Taxation Revenue Estimates (2024)
4. IRS Statistics of Income (2023)
5. Economic Growth and Tax Relief Reconciliation Act of 2001 (P.L. 107-16)
6. Joint Committee on Taxation Revenue Estimates (2024)
7. 26 U.S.C. § 1 (Tax Imposed)
8. Reagan Tax Reform Act of 1986 (rate reduction with base broadening)
9. Bush Tax Cuts of 2001/2003 (bracket reductions)
10. United States v. Carlton, 512 U.S. 26 (1994) (retroactive tax legislation standards)

Change Log

2025-01-17 - ROI Self-Containment: Made document self-contained by clarifying this is a deliberate policy cost, not a gap requiring offset. Removed vague references to "comprehensive revenue model."

2025-12-07 - Template Standardization: Converted ROI section to required table format. Applied proper spacing between bullet points. Broke semicolon chains into separate sentences. Removed redundant change log entries. Standardized section order.

2025-12-07 - Inline Citations: Added superscript citations. Standardized References section.

2025-12-07 - Legislative Language Removal: Merged unique provisions into Proposed Reform. Deleted Legislative Language section.

Complete Revision (November 2025): Replaced prior flat tax proposal (35% single rate, payroll elimination) with targeted rate reductions maintaining progressive structure.