S.4306

Millionaires Surtax Act

Introduced·4/15/26

Imposes a 10% surtax on individual taxpayers with modified adjusted gross income exceeding $2 million.

The Millionaires Surtax Act amends the Internal Revenue Code to impose a 10% surtax on individual taxpayers with modified adjusted gross income exceeding $2 million. For taxpayers not filing jointly, the threshold is $1 million. The surtax applies to taxable years beginning after December 31, 2026. Certain exclusions and deductions, such as those related to foreign income and charitable trusts, are considered in calculating the surtax.

Included in complete analysis

  • Overview
  • Core Provisions
  • Implementation
  • Impact
  • Legal Framework
  • Critical Issues

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Where it stands

Current
Finance Committee
Next
Committee decision

Sponsors

Democratic CaucusRepublican Caucus

History

Apr 15

Senate

Read twice and referred to the Committee on Finance.