Proposition 136: Income Tax Rate Limit
Proposition 136 on Colorado's November 3, 2026 ballot (a statewide measure). Passes with a majority of votes cast. Plain-language summary of what YES and NO mean, with sources.
Would set the current 4.40 percent state income tax rate as the maximum rate in state law, starting in tax year 2027. A YES vote: The current 4.4 percent state income tax rate becomes the maximum rate in statute. A NO vote: The rate stays at 4.4 percent for now, without a new limit in statute. It passes with a majority of votes cast. This explanation was prepared with AI assistance and compared with the official Blue Book by an automated process; no person has signed off on it. Confirm details with the official sources.