Proposition 136
If both Amendment 87 and Proposition 136 pass, the one with the most votes will become law.
BALLOT LANGUAGE
WHAT IT MEANS
Yes
No
ARGUMENTS FOR AND AGAINST
Yes
“This is a clear counter to the far left’s attempt to hike taxes in Colorado, price people out of the state we love, and drive business out. We’ll always fight to protect TABOR and keep our taxes low.” - Michael Fields, Executive Director, Advance Colorado
No
"...Prop 136 would not lower anyone’s taxes today; instead, it would impose an arbitrary 4.4% ceiling on both individual and corporate income-tax rates, limiting Colorado’s future options. It could also prevent voters from adopting Amendment 87, a progressive tax system that lowers rates for 97% Coloradans while taxing very high incomes at a higher marginal rate, and would also restrict our ability to ask profitable corporations to contribute more when circumstances warrant it. Future voters deserve the flexibility to make tax decisions based on future economic conditions—not have those choices constrained by the tax rate that happens to exist today.” - Eagle County Democrats
ENDORSEMENTS
Yes
Colorado Chamber of Commerce (Other)
Independence Institute (Conservative)
Advance Colorado (Conservative)
Brighter Colorado (Other)
No on 87, Yes on 136 (Other)
No
Boulder Progressives (Liberal)
Boulder County Board of County Commissioners (Liberal)
League of Women Voters of Colorado (Liberal)
Colorado Democratic Party (Liberal)
The Bell Policy Center (Liberal)
FINANCIAL BACKING
The following information provides insight into the money being spent to pass or defeat the ballot measure.
Yes
This question is on the ballot in Colorado as an initiated state statute on November 3, 2026. As of September 18, 2026, the committees formed to support Colorado Proposition 136, Establish 4.4% Cap on Individual and Corporate Income Tax Rates Initiative (2026) are:
Selected contributions to: "Brighter Colorado" include:
- Common Sense America
- Advance Colorado
- Richard McCormick
Selected contributions to: "No On 87, Yes On 136" include:
As of September 18, 2026, there are no contributions to report.
No
This question is on the ballot in Colorado as an initiated state statute on November 3, 2026. As of September 18, 2026, no committee to oppose the amendment has been identified. Thus, there is no record of funds raised to oppose the amendment.
OTHER INFORMATION
