How much state income tax would I pay on $75,000 in Colorado?

On $75,000 of Colorado taxable income at the flat 4.4% rate, the state income tax is about $3,300 before credits — your marginal and effective rates are both 4.4%. Apply the rate to your taxable income (after Colorado's deductions). Use the estimator above for your own figure.

Are these the only taxes on my income?

No. These are Colorado state income-tax brackets only. On top of state tax you also owe federal income tax and FICA (Social Security + Medicare), and some cities or counties levy their own local income tax. This page covers the state schedule for the 2025 tax year.

Is my data sent anywhere when I use this calculator?

No. All calculations run entirely in your browser using JavaScript. No amounts, inputs, or personal data are ever transmitted to any server.

Colorado Income Tax Brackets 2025 — Flat 4.4% Rate

Name: Colorado Income Tax Brackets 2025 — Flat 4.4% Rate
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

See the Colorado flat 4.4% income-tax rate for 2025 and estimate your state tax instantly, in your browser.

Free Colorado income tax brackets reference for 2025. See the flat 4.4% rate for single and married-filing-jointly filers, standard deductions and exemptions, and estimate your Colorado state income tax. Source: Tax Foundation 2025 + Colorado Department of Revenue. Runs entirely in your browser; no data sent to any server. It runs free in your browser on Gera Tools, with nothing uploaded.

Last updated 17 June 2026 Source: Gera Tools

What is the Colorado income tax rate for 2025?

Colorado has a flat 4.4% individual income tax for 2025, applied to all taxable income regardless of filing status or income level. (Source: Tax Foundation, 2025 State Individual Income Tax Rates and Brackets.)

Get one useful tool a week

Like this tool? Enter your email and we'll send you one genuinely useful Gera tool a week — plus a link to come back to this one. No spam, one-click unsubscribe any time.

Colorado Income Tax Brackets 2025

Colorado levies a flat 4.4% individual income tax for 2025 — one rate on all taxable income, regardless of how much you earn.

Pick your filing status and enter your taxable income below to see the official 2025 bracket table, your estimated Colorado state tax, and your marginal and effective rates. Everything runs in your browser — no data is transmitted.

Important: Colorado has a flat 4.40% individual income tax applied to federal taxable income. These are state income-tax brackets only — they exclude federal income tax, FICA, and any local city/county income taxes. Verify the current figures with the Colorado Department of Revenue.