What is different in Colorado:
- Flat 4.4% income tax on wages.
- Denver and a few other cities levy a tiny occupational privilege tax — a few dollars a month, not modeled here.
- The 4.4% applies to wages after pre-tax deductions like a 401(k).
- Federal income tax, Social Security and Medicare work exactly as in every other state.
What a Colorado paycheck looks like at six salaries
Single filer, paid every two weeks, no 401(k) or other deductions, 2026 figures. Every number below comes from the same tested formulas the calculator above uses.
| Salary | Federal income tax | Social Security + Medicare | Colorado tax | Take-home / year | Take-home / paycheck |
|---|---|---|---|---|---|
| $48,000 | $3,580 | $3,672 | $2,112 | $38,636 | $1,486.00 |
| $68,000 | $6,130 | $5,202 | $2,992 | $53,676 | $2,064.46 |
| $88,000 | $10,530 | $6,732 | $3,872 | $66,866 | $2,571.77 |
| $112,000 | $15,810 | $8,568 | $4,928 | $82,694 | $3,180.54 |
| $142,000 | $22,814 | $10,863 | $6,248 | $102,075 | $3,925.96 |
| $185,000 | $33,134 | $14,122 | $8,140 | $129,605 | $4,984.79 |
Worked example: $105,000, single, paid twice a month
Single filer, paid twice a month, 7% of salary to a traditional 401(k) — $306.25 per paycheck, $7,350 a year — in Colorado.
- Taxable income: $105,000 − $7,350 401(k) − $16,100 standard deduction (single) = $81,550.00.
- Federal income tax on that amount: $12,653.00 a year.
- Social Security: $6,510.00; Medicare: $1,522.50. The 401(k) does not reduce these.
- Colorado state income tax: $4,296.60.
- Take-home: $105,000 − $7,350 − $12,653.00 − $6,510.00 − $1,522.50 − $4,296.60 = $72,667.90 a year, or $3,027.83 per semimonthly paycheck.
Worked example: $28 an hour in Colorado
A single worker earns $28.00 an hour for 40 hours a week: $28.00 × 40 × 52 = $58,240 a year before tax. After federal income tax ($4,809), Social Security ($3,611) and Medicare ($844) ($2,563 of Colorado tax), take-home is $46,413 a year — about $1,785.13 per biweekly paycheck.
Colorado vs Utah: $88,000
The same single worker earning $88,000, paid biweekly with no 401(k). Colorado's 4.4% takes $3,872 a year; Utah's 4.5% takes $3,960 — a $88 difference on the whole year.
| Colorado | Utah (4.5% flat) | |
|---|---|---|
| Federal income tax | $10,530 | $10,530 |
| Social Security + Medicare | $6,732 | $6,732 |
| State income tax | $3,872 | $3,960 |
| Take-home per year | $66,866 | $66,778 |
The Utah worker keeps $88 less per year than the Colorado worker — about $3.38 per paycheck. Neighboring flat rates barely move the needle. To compare every no-tax and flat-tax state side by side, see take-home pay by state. Also see our Utah paycheck calculator.
What Colorado does not tax — and what it does
Colorado's flat 4.4% sits just under Utah's 4.5% next door — the comparison below shows how little a tenth of a point matters. Note Denver and a few other cities charge a small occupational privilege tax (a few dollars a month); it's too small to model here. Colorado's state sales tax is only 2.9%, but local add-ons bring most Front Range totals to around 8–9%.
What this page leaves out
Child and dependent credits, itemized deductions, health premiums, 401(k) contributions beyond the examples above, bonuses and overtime are not in the simplified calculator — the full paycheck calculator covers all of them, with Colorado at its 4.4% flat rate. For exact figures use your employer's payroll system or the IRS Tax Withholding Estimator.
Sources and review
Brackets and standard deductions come from IRS Revenue Procedure 2025-32. The Social Security wage base comes from the Social Security Administration, and Colorado’s 4.4% flat rate is confirmed by the Tax Foundation's 2026 state rates. Last reviewed September 2026. See our methodology for how every figure is checked.