Brighter Colorado

Colorado general election, November 3, 2026

Vote Yes on 136

The Income Tax Cap

Ensure Colorado families never have to pay more than 4.4% ever again.

Donate to pass the cap Why vote yes
Colorado's flat income tax rateVoters have cut it again and again. Now let's lock it in.
Colorado income tax rate history with the Proposition 136 cap Colorado's flat rate fell from 5% in 1987 to 4.4% in 2022. Proposition 136 caps it at 4.4% going forward. 3%4%5% 6%7%8%9% 198720002022Future 5% 4.63% 4.4% (Prop 121) Prop 136 cap: 4.4%

Colorado is too expensive.

The best way to make Colorado affordable for Colorado families is to cap the income tax. Proposition 136 caps the rate at 4.4% for individuals and businesses alike.

3rd

Affordability for families

Colorado already ranks as the third-most-expensive state in the country. A tax cap keeps more of every paycheck at home for rent, groceries, and child care.

4.4%

Predictability you can plan on

Families and small businesses can budget, hire, and invest knowing the state income tax rate won't climb out from under them.

12,000

Keep jobs and neighbors here

Colorado lost roughly 12,000 residents to other states in a single year. Raising rates on employers gives them one more reason to leave, and leaves the bill with everyone who stays.

What Proposition 136 does.

Colorado voters cut the income tax rate to 4.4% in 2022. Proposition 136 makes 4.4% the ceiling, for individuals and businesses alike.

Vote yes

Proposition 136: the 4.4% tax cap

  • Caps the income tax rate at 4.4% for individuals and corporations
  • Predictability for families and small businesses
  • Protects TABOR's single-rate income tax from being chipped away
  • Put on the ballot by Coloradans, with 190,000 signatures turned in

Who it helps

Families who want to know what they'll owe next year. Small businesses deciding whether to hire, expand, or stay in Colorado. Seniors and workers on fixed budgets in one of the most expensive states in the country.

A cap on the rate means no surprise increases on the income you work for.

Every vote counts.

Look for Proposition 136 on your November ballot and vote yes to cap Colorado's income tax at 4.4%. Then make sure your friends and family do too.

Protect the flat tax voters chose.

For more than three decades, TABOR has required Colorado to tax income at a single rate, and it gives voters the final say on tax increases.

Proposition 136 builds on that protection with a clear line: 4.4%, and no higher.

“Any income tax law change after July 1, 1992 shall also require all taxable net income to be taxed at one rate with no added surcharge.”
Colorado Constitution, Article X, Section 20 (TABOR)
34.5%of individual income taxes paid by the top 1%
59%of the General Fund comes from income taxes
19 ptsmargin voters rejected the last TABOR raid by