Colorado State Tax Calculator 2026
Estimate your Colorado state income tax and take-home pay for tax year 2026.
Last updated: November 2025 · Source
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Colorado 2026 tax overview
Statutory flat 4.4% (TABOR may reduce to 4.25% in surplus years). Uses federal taxable income.
Breakdown
Colorado also withholds an employee FAMLI premium; this page does not model it, so real take-home is slightly lower.
Colorado income tax brackets, 2026
Colorado charges one rate on all taxable income. Figures are for single filers unless the state uses one schedule for all statuses.
| Taxable income | Rate | Tax on this bracket |
|---|---|---|
| Over $0 | 4.40% | 4.40% of everything above $0 |
Colorado conforms to the federal standard deduction: $16,100 single, $32,200 married filing jointly for 2026.
What this calculator does not include
Five Colorado cities charge a flat monthly occupational privilege tax on people who work in them: Denver, Aurora, Glendale, Sheridan and Greenwood Village. The amounts are small and per-month, not a percentage. Colorado also withholds an employee FAMLI premium; this page does not model it, so real take-home is slightly lower.
Frequently Asked Questions
What are the 2026 Colorado income tax rates?
Colorado charges a flat 4.40% on taxable income for 2026. Statutory flat 4.4% (TABOR may reduce to 4.25% in surplus years). Uses federal taxable income.
At what income does the top Colorado tax rate start?
Colorado has a single rate, so it applies from the first dollar of taxable income above the standard deduction. There is no higher bracket to reach.
What is the 2026 Colorado standard deduction?
Colorado conforms to the federal standard deduction, which is $16,100 single and $32,200 married filing jointly for 2026 under IRS Rev. Proc. 2025-32.
Are there local income taxes in Colorado?
Yes. Five Colorado cities charge a flat monthly occupational privilege tax on people who work in them: Denver, Aurora, Glendale, Sheridan and Greenwood Village. The amounts are small and per-month, not a percentage.
What payroll deductions does Colorado require besides income tax?
Colorado also withholds an employee FAMLI premium; this page does not model it, so real take-home is slightly lower. Local income tax applies too; see the question above.
Does Colorado tax Social Security and retirement income?
Colorado taxes Social Security but allows a large subtraction: taxpayers 65 and over can deduct all federally taxable Social Security, and those 55 to 64 can deduct up to $20,000 of pension and annuity income.
What surprises people most about Colorado income tax?
Colorado starts from federal taxable income, so every federal deduction flows straight through to the state return.