Colorado Paycheck Calculator
Colorado's flat 4.4% rate uses federal taxable income — no separate state deduction.
Colorado taxes income at a flat 4.4% for 2026. It starts from federal taxable income, so the federal standard deduction ($16,100 single, $32,200 married filing jointly, $24,150 head of household) comes off before the rate applies.
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Estimates only. Not tax or legal advice. Consult a tax professional for accuracy.
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Colorado Paycheck FAQ
Common questions about paychecks and taxes in Colorado
What is the Colorado state income tax rate?
A flat 4.4% of Colorado taxable income for 2026, the rate on the Colorado Department of Revenue's 2026 estimated-tax worksheet. Colorado can cut the rate for a year as a TABOR refund when revenue exceeds the state's cap, but the State Controller certified in September 2026 that there will be no refund for tax year 2026, so the rate stays at 4.4%.
Does Colorado have a standard deduction?
Not one of its own. Colorado taxes federal taxable income, with Colorado additions and subtractions, so the federal standard deduction is already out: $16,100 single or married filing separately, $32,200 married filing jointly, $24,150 head of household for 2026. The calculator subtracts it before applying 4.4%.
What does this calculator leave out for Colorado?
From 2026, filers with AGI over $300,000 add back standard or itemized deductions above $1,000 (single) or $2,000 (joint), and anyone who took the federal overtime deduction adds it back. The calculator models neither, so it understates Colorado tax above $300,000; the deduction addback alone is $664.40 a year for a single filer and $1,328.80 joint. Colorado subtractions, such as those for pensions and Social Security, aren't included either.
Does Colorado have a separate bonus withholding rate?
No. Colorado publishes no flat rate for bonuses. Employers run bonuses and commissions through the same 2026 withholding worksheet as regular wages.