Colorado income tax rates for 2026
A flat 4.4% of federal taxable income. The calculation starts from federal taxable income.
| Rate | Taxable income |
|---|---|
| 4.4% | All taxable income |
Deductions, exemptions and credits
Before the rates apply, Colorado allows the federal standard deduction of $16,100 (single) or $32,200 (married filing jointly). The calculator uses these for the filing status you choose; dependent exemptions and credits, which lower the tax further for families, are not included.
- Colorado can temporarily lower the rate in years with a large TABOR surplus; no reduction for 2026 had been announced when we checked.
Worked example: $75,000 in Colorado
Single filer with $75,000 of income before state deductions.
Taxable income = $75,000 − $16,100 (federal standard deduction) = $58,900.00
Brackets: 4.4% × $58,900.00 = $2,591.60
Colorado income tax = $2,591.60 — an effective rate of 3.46% and a marginal rate of 4.4%.
Colorado income tax at common incomes
| Income | Single | Effective | Married jointly | Effective |
|---|---|---|---|---|
| $30,000 | $612 | 2.04% | $0 | 0% |
| $50,000 | $1,492 | 2.98% | $783 | 1.57% |
| $75,000 | $2,592 | 3.46% | $1,883 | 2.51% |
| $100,000 | $3,692 | 3.69% | $2,983 | 2.98% |
| $150,000 | $5,892 | 3.93% | $5,183 | 3.46% |
| $250,000 | $10,292 | 4.12% | $9,583 | 3.83% |
Income before state deductions; standard deduction and personal exemptions for the filer (and spouse) only; no dependents, itemized deductions or local taxes.
Colorado compared with nearby states
At $75,000 (single), Colorado ranks 25 of 51 for state income tax, where 1 is the highest. Wyoming does not tax wages.
| State | Tax on $75,000 | Effective rate | Top rate |
|---|---|---|---|
| Colorado | $2,592 | 3.46% | 4.4% |
| Wyoming | $0 | 0% | none |
| Nebraska | $2,533 | 3.38% | 4.55% |
| Kansas | $3,385 | 4.51% | 5.58% |
| Oklahoma | $2,830 | 3.77% | 4.5% |
| New Mexico | $2,359 | 3.15% | 5.9% |
| Utah | $3,110 | 4.15% | 4.45% |
| Arizona | $1,473 | 1.96% | 2.5% |
Frequently asked questions
What is the Colorado income tax rate for 2026?
A flat 4.4% of federal taxable income. A single filer with $75,000 of income pays an effective 3.46% after deductions.
How much Colorado income tax do I pay on $75,000?
About $2,592 for a single filer — 3.46% of income — after $16,100 of federal standard deduction. A married couple with $150,000 owes about $5,183.
What deductions does Colorado allow?
Colorado allows the federal standard deduction of $16,100 (single) or $32,200 (married filing jointly). Dependent exemptions or credits, where the state offers them, lower the tax further.
Is Colorado's income tax higher than its neighbors'?
At $75,000 (single), Colorado ranks 25 of 51 for state income tax, where 1 is the highest. Among nearby states, Wyoming is lowest at $0 and Kansas is highest at $3,385.
Estimates only — not tax advice. Colorado figures: Tax Foundation, State Individual Income Tax Rates and Brackets, 2026 (as of Jan. 1, 2026). Checked October 2026. Your return may include income, deductions and credits this estimate leaves out.