Colorado Paycheck Calculator
Colorado has a flat 4.40% state income tax — calculate your take-home pay with this simple, predictable rate.
Colorado Flat Tax: 4.40%
Colorado uses a flat (single-rate) income tax of 4.40% on all taxable income — the same rate regardless of how much you earn. This makes estimating your Colorado tax straightforward.
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Colorado Tax Summary
| Federal Income Tax | 10% – 37% (progressive brackets) |
| Social Security | 6.2% (up to $176,100 wage base) |
| Medicare | 1.45% (+ 0.9% over $200k) |
| Colorado State Income Tax | 4.40% flat rate |