Colorado · Ballot measure

Amendment 87: Graduated income tax

On the ballot: November 3, 2026 Citizen-initiated constitutional amendment and statute (majority vote, tax measure)

Heads up: voting YES on this measure removes the constitutional requirement that Colorado have a single flat income tax rate. Voting NO keeps the flat-rate requirement.

A YES vote means

Colorado’s single 4.4% income tax rate would be replaced, starting in 2027, with six brackets from 3.7% to 8.4%, lowering taxes on taxable income below about $500,000 and raising them above it. The added revenue would go to K-12 education, health care, and early childhood programs and would be exempt from the TABOR revenue limit.

A NO vote means

The constitutional requirement for a single flat state income tax rate stays in place.

Who supports it

  • Lorena Garcia (D)
  • Make Good Change
  • People for a Fair Colorado
  • Protect Colorado’s Future Coalition
  • Watchdog for the People

Who opposes it

  • Advance Colorado
  • Affordable Colorado
  • Americans For Prosperity Colorado Issue Committee
  • Brighter Colorado
  • Colorado Union of Taxpayers
  • and 7 more

From official campaign filings and public endorsements, each linked on the full page (checked October 30, 2026). Not complete; not an endorsement.