Sponsors (21)
The bill trades broader, inflation‑protected tax relief for many middle‑ and lower‑income households (and larger family exemptions) against higher taxes on wealthy individuals to raise revenue—producing distributional gains but creating fiscal pressure, added complexity, and specific downsides for some retirees and potential investment effects.
Millions of middle- and lower-income taxpayers (including many single parents and families) would face a capped effective tax rate (no more than 25.5%) on MAGI above a cost-of-living exemption, with larger exemptions for joint filers and heads of household and indexing to CPI‑U to preserve the benefit over time—reducing tax liability for many households.
High‑income individuals would face a new surcharge (effective for taxable years beginning in 2026), increasing federal revenue that Congress could use to fund services or reduce deficits and making the tax system more progressive.
Specifying an effective date for the surcharge gives taxpayers and tax professionals time to plan for the change before it applies.
The exemption and capped rate for many taxpayers will lower federal income tax receipts, potentially increasing deficits or forcing Congress to find offsets such as spending cuts or other tax increases.
Defining MAGI exclusions, indexing rules, and adding a new surcharge increases filing complexity and administrative burden for taxpayers and the IRS, raising compliance costs and implementation challenges.
Some retirees could see worse outcomes because certain excluded portions are added back into 'modified AGI', which may raise taxable income or reduce eligibility for other benefits tied to MAGI.
Based on analysis of 6 sections of legislative text.
Caps tax for eligible taxpayers at 25.5% of modified AGI minus a CPI‑indexed cost‑of‑living exemption and adds a new surcharge on high earners, effective 2026.
Introduced March 12, 2026 by Christopher Van Hollen · Last progress March 12, 2026
Creates a new alternative maximum tax for many working taxpayers that caps their tax liability at 25.5% of a measure of income after subtracting a cost‑of‑living exemption, and establishes a separate new statutory part to impose a surcharge on very high‑income individuals. The rules use a defined “modified adjusted gross income” and a cost‑of‑living wage benchmark (indexed by CPI) to determine who qualifies; the changes take effect for taxable years beginning after December 31, 2025 (generally tax year 2026).