Colorado Capital Gains Tax 2026
Estimate the state tax attributable to a gain, then separate it from the federal capital-gains calculation.
State-specific rule
A narrow subtraction can apply to qualifying capital gains from specified Colorado property. The calculator does not assume that subtraction.
Calculate the Colorado state layer
Enter other state taxable income so the calculator can measure the incremental tax created by the gain.
State tax on gain
$4,400State tax before gain
$4,400State tax after gain
$8,800Colorado generally starts from federal taxable income. The narrow capital-gain subtraction for qualifying agricultural real property is not modeled.
Frequently asked questions
Does Colorado have a lower rate for long-term capital gains?
Colorado generally starts from federal taxable income and applies its flat individual income-tax rate to taxable capital gains.
Does this include federal capital gains tax?
No. This page estimates the state layer. Use the federal capital gains calculator for the 0%, 15% or 20% long-term rate, ordinary short-term rates and possible 3.8% NIIT.
Why does other income change the result?
The gain can stack on top of other taxable income. In a progressive system, some or all of the gain may therefore fall into higher state brackets.
Sources
Related Calculators
State Capital Gains Tax Calculator
Estimate state tax on short- or long-term gains across 10 high-demand states
Capital Gains Tax Calculator
LTCG 0/15/20% rates + 3.8% NIIT based on income brackets
NIIT Calculator
Net Investment Income Tax 3.8%, thresholds $200k / $250k MFJ
Tax-Loss Harvesting
Capital loss utilization, $3k annual deduction, carryforward