Colorado Voters to Decide on Replacing Flat Tax Rate

2026-09-04 politics

Denver, Friday, 4 September 2026.
Initiative 195 qualified for Colorado’s November 2026 ballot, proposing a progressive tax system that cuts rates for 97% of residents while raising $2 billion annually from top earners.

Ballot Qualification and Election Timeline

Proposed Initiative 195 officially qualified for the November 2026 ballot after the Colorado Secretary of State’s Office verified 130,938 valid signatures on August 25, 2026 [2][6]. The measure required a threshold of 124,238 valid signatures statewide, along with specific signature counts from each of the state’s 35 senate districts, to secure its place on the ballot [2][6]. Voters will determine the fate of the graduated income tax proposal during the General Election scheduled for November 3, 2026 [2][5].

The qualification process concluded a significant petitioning period during which supporters submitted 165,765 total signatures [2]. Signature verification revealed 34,827 invalid signatures, but the remaining valid count successfully exceeded the constitutional requirement for statewide initiatives [2]. This timeline sets the stage for a decisive vote in the upcoming general election, where the measure will appear alongside U.S. Senate and gubernatorial races [5].

Proposed Tax Structure and Rate Changes

Initiative 195 proposes replacing Colorado’s current 4.4% flat income tax rate with a six-tier graduated system effective for tax year 2027 [1][3]. Under the new structure, annual income up to $25,000 would be taxed at 3.7%, while income exceeding $1 million would be taxed at 8.4% [1][5]. For the highest earners, this represents a significant increase, calculated as a 4 percentage point rise over the current flat rate for income in the top bracket [1][5].

The proposal aims to reduce tax burdens for approximately 97% of Coloradans earning less than $500,000 annually [4][6]. Households earning the median income of $95,000 would see their effective tax rate drop from 4.4% to 4.07%, while individuals and businesses earning over $500,000 would face higher marginal rates [3][5]. Income between $101,000 and $500,000 would remain largely unchanged under the proposed tiers [5].

Revenue Projections and Fund Allocation

Fiscal analysis by the nonpartisan Legislative Council Staff projects the initiative will increase state revenue by approximately $2 billion annually by fiscal year 2027-28 [4][5]. These funds are designated for K-12 education, healthcare, and early childhood care programs, addressing identified budget shortages in these sectors [3][6]. Supporters argue this revenue is critical to filling a $1.5 billion gap driven by rising Medicaid costs and federal tax law impacts [6].

The Protect Colorado’s Future Coalition, the primary supporting committee, raised over $300,000 between June and July 2026 to fund campaign efforts [3]. Major contributors include the Bell Policy Center, the Colorado Statewide Parent Coalition, and Great Education Colorado Action [3][6]. Proponents contend the revenue increase is necessary to support public schools and childcare infrastructure without raising costs for the majority of residents [4][6].

Opposition and Competing Ballot Measures

Opposing the graduated tax is Initiative 232, a competing measure backed by the conservative nonprofit Advance Colorado that seeks to cap the state income tax rate at 4.4% [3][5]. Michael Fields, President of Advance Colorado, warned that higher taxes could cause businesses and high-income earners to relocate to states with no income tax, such as Florida or Wyoming [4][5]. The Independence Institute also opposes Initiative 195, characterizing it as a divisive tax increase without guaranteed funding recipients [4][5].

If both Initiative 195 and Initiative 232 pass, state law dictates that the measure receiving the higher number of yes votes will prevail [5][6]. The Colorado Democratic Party has endorsed Initiative 195, while business groups argue it could result in the loss of significantly sized businesses annually [5][6]. Voters will decide between these conflicting tax policies in the November 2026 election [5][6].

Sources

Income Tax Colorado Economy