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Colorado · November 3, 2026 general election · Statewide ballot measure

Proposition 136: what your vote means

Income tax rate limit. On every Colorado ballot. Official sources checked October 22, 2026.

Proposition 136 · Citizen-initiated statute (majority vote)

Income tax rate limit

Official ballot title (quoted exactly)

Shall there be a change to the Colorado Revised Statutes capping the state income tax rate at 4.4% of federal taxable income for individuals and corporations?

Ballot title as printed in the 2026 State Ballot Information Booklet (Blue Book), Colorado Legislative Council Staff.

A YES vote means:

The current state income tax rate of 4.4% would become the maximum rate allowed in state statute for individuals and corporations.

A NO vote means:

The rate stays at 4.4%, without a new limit in statute.

What it would change

  • Who is affected: individual and corporate income taxpayers.
  • Taxes: no change to today’s rate; it caps future rates in statute.
  • Fiscal impact (Legislative Council Staff): no fiscal impact.

Official arguments, summarized

Short neutral summaries of the arguments printed in the official voters’ pamphlet. The committees that wrote them are responsible for their content. Read the full text at the link below.

Argument for

Supporters say it reinforces voter support for keeping the current state income tax rate, which voters approved in 2022 and which is among the lowest in the country.

Argument against

Opponents say it is designed to put Amendment 87 in legal jeopardy and cause a costly legal fight, and that it would have no effect after 2026 because tax increases already need voter approval.

Arguments for and against Proposition 136, 2026 Blue Book, Colorado Legislative Council Staff (PDF, p. 63)

Who supports it and who opposes it

These lists come from official campaign filings (registered committees) and public endorsements, each linked to its source. They are not complete, and SaveYourState does not endorse anyone listed. Lists checked October 30, 2026.

Who supports it

Who opposes it

Official sources

SaveYourState is independent and nonpartisan, not a government site, and does not take positions on ballot measures. This explainer describes effects only, using the official ballot title, explanatory statement, full text, and fiscal impact statement. If anything here differs from those documents, the official documents control.