YES on 87
Calculate Your Tax Change
Amendment 87 would cut income taxes for 97% of Coloradans while investing in K–12 schools, health care, and child care.
Tax Calculator
How Would Income Tax Fairness Work for you?
Enter your annual Colorado taxable income to compare what you pay today with what you'd pay under Amendment 87 — the Income Tax Fairness Act
Your effective tax rate will be: 4.4%
Current flat tax
$0
4.4%
With Amendment 87
$0
Estimate
$0
97% of Coloradans are expected to pay less.
*How is this calculated?
* For individual taxpayers, Colorado taxable income is calculated by subtracting your deductions from your federal adjusted gross income. For 2027, the standard deduction is $15,750 for single filers and $31,500 for married joint filers. Pursuant to the passage of Proposition MM, taxpayers earning more than $300,000 are subject to a maximum deduction of $1000 for single filers and $2000 for joint filers.
For owners of businesses that file as passthroughs (S-Corps, LLCs, etc), the Colorado taxable income calculation should include total annual take-home pay (salary plus share of profit) minus allowable deductions.
For C-corps, the change in annual corporate tax can be calculated by plugging annual Corporate net income into the “Annual income” field above.