Colorado Proposition 136: Income-tax rate limit
Colorado · Statutory measure · Taxes · Statewide decision
Explanation reviewed 2026-10-27. AI-written and checked against linked official evidence; not an election-office summary.
AI-written summary
Would set 4.4% as the statutory maximum from 2027. It does not reduce the current rate or change the process by which voters could approve future increases.
What applies now
The current state income-tax rate is 4.4%; increases already require voter approval.
If yes / for
Set the proposed statutory ceiling.
If no / against
Leave the current rate without this additional ceiling.
Costs and funding
No fiscal effect under current rates according to the Blue Book.
Timing
January 1,2027.
Passage rule
A majority of votes cast.
Source notes
- Conflicts may arise with Amendment87 if both pass; the precise resolution is uncertain.