Colorado has a flat state income tax, which means taxable income is generally taxed at one state rate instead of a long set of progressive brackets. That makes the state tax table easier to read, but your actual paycheck still depends on federal income tax, Social Security, Medicare, deductions, credits, and withholding choices.
This page brings the Colorado income tax picture together in one place: the state tax rate, Colorado deductions and adjustments, local income tax treatment, and the combined federal, state, and FICA rate you actually face on your income.
Every table below is generated from current tax data, so the figures stay accurate year to year, and they match the numbers used by our payroll and income tax calculators.
Colorado state income tax brackets
Colorado uses a flat income tax for 2026: every filer pays 4.4% of Colorado taxable income, regardless of income level or filing status.
The rate applies to Colorado taxable income — income after the state's own deductions and exemptions, not your gross salary.
Colorado uses a flat income tax structure rather than a multi-bracket progressive system. The table above shows the current Colorado state income tax rate for each filing status. Even with a flat state rate, your combined tax rate can still rise as income increases because the federal income tax system is progressive and FICA has its own wage limits and surtax rules.
Colorado standard deduction and adjustments
| Filing Status | Standard Deduction | Personal Exemption |
|---|---|---|
| Single | $16,100 | $0 |
| Married Filing Jointly | $32,200 | $0 |
| Married Filing Separately | $16,100 | $0 |
| Head of Household | $24,150 | $0 |
These amounts are subtracted from income before Colorado's tax rates apply. They are separate from — and in addition to — the federal standard deduction.
Colorado taxable income starts from federal taxable income, but state-specific additions, subtractions, credits, and retirement-income rules can still affect the amount of income that is ultimately taxed. The table above shows the Colorado deduction and adjustment rules stored in the PaycheckNet database.
Colorado local income taxes
Colorado does not generally have a broad city income tax system like New York City or many Ohio municipalities. Some local governments may use other taxes or fees, and Denver has specific occupational privilege tax rules that can affect certain employees and employers. If the database contains any Colorado locality-specific income or payroll-related tax entries, they will appear in the table above.
What you actually pay in Colorado
| Gross Income | Federal | Colorado | FICA | Combined |
|---|---|---|---|---|
| Up to $16,100 | -7.65% | -2.68% | 7.65% | -2.68% |
| $16,100 – $28,500 | 10% | 4.4% | 7.65% | 22.05% |
| $28,500 – $66,500 | 12% | 4.4% | 7.65% | 24.05% |
| $66,500 – $121,800 | 22% | 4.4% | 7.65% | 34.05% |
| $121,800 – $184,500 | 24% | 4.4% | 7.65% | 36.05% |
| $184,500 – $200,000 | 24% | 4.4% | 1.45% | 29.85% |
| $200,000 – $217,875 | 24% | 4.4% | 2.35% | 30.75% |
| $217,875 – $272,325 | 32% | 4.4% | 2.35% | 38.75% |
| $272,325 – $656,700 | 35% | 4.4% | 2.35% | 41.75% |
| Over $656,700 | 37% | 4.4% | 2.35% | 43.75% |
Marginal rate = the tax on your NEXT dollar of gross income. Because the federal government and Colorado each subtract their own deductions before applying brackets, the ranges here are expressed in gross income — the two bracket tables cannot simply be added together.
FICA is the employee share of Social Security and Medicare. It applies from the first dollar, stops on wages above the Social Security cap, and rises again where the Additional Medicare surtax begins.
| Gross Income | Federal Tax | Colorado Tax | FICA | Total Tax | Take-Home Pay | Effective Rate |
|---|---|---|---|---|---|---|
| $30,000 | $1,420 | $612 | $2,295 | $4,327 | $25,673 | 14.4% |
| $50,000 | $3,820 | $1,492 | $3,825 | $9,137 | $40,863 | 18.3% |
| $75,000 | $7,670 | $2,592 | $5,738 | $15,999 | $59,001 | 21.3% |
| $100,000 | $13,170 | $3,692 | $7,650 | $24,512 | $75,488 | 24.5% |
| $150,000 | $24,734 | $5,892 | $11,475 | $42,101 | $107,899 | 28.1% |
| $200,000 | $36,734 | $8,092 | $14,339 | $59,165 | $140,835 | 29.6% |
| $300,000 | $68,134 | $12,492 | $16,689 | $97,315 | $202,685 | 32.4% |
| $500,000 | $138,134 | $21,292 | $21,389 | $180,815 | $319,185 | 36.2% |
Effective rate = total tax as a share of gross income. It is always lower than your top marginal rate, because only the last slice of income is taxed at the highest bracket.
The combined table shows what a Colorado resident really pays on their next dollar once federal tax, Colorado state tax, and FICA are stacked together. This is often more useful than looking at the state rate alone, because your paycheck is reduced by several layers of tax at the same time.
Social Security and Medicare
| Employee Rate | Wage Limit | |
|---|---|---|
| Social Security | 6.2% | First $184,500 of wages |
| Medicare | 1.45% | All wages (no cap) |
| Additional Medicare | 0.9% | Wages above $200,000 (single / head of household), $250,000 (married filing jointly), $125,000 (married filing separately) |
FICA comes out of every paycheck in every state and is separate from income tax. Employers pay a matching share on top of these employee rates; self-employed workers pay both halves through self-employment tax.
FICA applies the same way in Colorado as it does across the rest of the country. The table lists the current Social Security wage cap, the Medicare rate, and the additional Medicare surtax that higher earners pay.
Work out your Colorado take-home pay
To turn these tables into a practical paycheck estimate, use the payroll calculator and select Colorado as your state. To compare Colorado against another state, use the tax comparison calculator and keep the salary, filing status, and deductions consistent across both scenarios.
Frequently asked questions
Is Colorado income tax flat or progressive?
Colorado has a flat state income tax rather than a multi-bracket progressive state income tax. The federal tax system is still progressive, so your combined tax rate can still change as income increases.
Does Colorado have local income tax?
Colorado does not generally have a broad local wage income tax system like New York City or many Ohio municipalities. Some local payroll-related taxes or occupational taxes may apply in specific jurisdictions, such as Denver.
Do Colorado workers still pay Social Security and Medicare?
Yes. Colorado workers still pay FICA taxes, which include Social Security and Medicare. These apply separately from Colorado state income tax and are included in the combined tables on this page.