Your hub for Colorado taxes: state income tax (Flat 4.4%), plus free calculators for take-home pay, self-employment tax, quarterly estimates, and salary conversion.
Last updated: May 2026 · Data: IRS, BLS, Colorado Department of Revenue
Colorado levies a state income tax (Flat 4.4%) that is withheld from wages on top of federal tax and FICA. Colorado uses a flat income tax rate of 4.4%. The state's TABOR amendment requires voter approval for any tax increases.
| Tax | 2026 Rate / Detail |
|---|---|
| Colorado State Income Tax | Flat 4.4% |
| Colorado State Sales Tax (base) | 2.9% |
| Federal Income Tax | 10% to 37% (progressive brackets) |
| Social Security | 6.2% on first $176,100 |
| Medicare | 1.45% on all wages (plus 0.9% above $200,000) |
| Federal Standard Deduction (Single / MFJ) | $15,000 / $30,000 |
| Minimum Wage | $14.81 / hour |
| State Tax Authority | Colorado Department of Revenue |
Colorado has a state income tax. The 2026 rate is Flat 4.4%. This applies on top of federal income tax and FICA (Social Security and Medicare) withheld from your pay.
For 2026, Colorado income tax is Flat 4.4%. Colorado uses a flat income tax rate of 4.4%. The state's TABOR amendment requires voter approval for any tax increases.
A Colorado paycheck has federal income tax, Colorado state income tax (Flat 4.4%), Social Security (6.2% up to $176,100), and Medicare (1.45%) withheld. Try the take-home pay calculator for a personalized net-pay estimate.
Yes. Self-employed workers in Colorado generally make quarterly estimated payments to the IRS and to the state if they expect to owe tax. The quarterly estimated tax calculator estimates each payment and the due dates.
The Colorado statewide base sales tax rate is 2.9%. Local jurisdictions may add their own rates on top of the state rate.