How much is the quarterly tax for freelancers in Colorado?

Freelancers in Colorado pay federal self-employment tax (15.3% on net self-employment income), federal income tax based on their bracket, and 4.40% Colorado state income tax. Use the calculator above to get your specific estimate.

When are quarterly taxes due in Colorado?

Colorado generally follows the federal quarterly estimated tax schedule: April 15, June 17, September 16, and January 15 of the following year.

State Tax: 4.40%

Colorado Quarterly Tax Calculator 2026

Colorado has a low flat income tax rate of 4.4% on federal taxable income. Estimated payments required if you expect to owe $1,000 or more.

Read our full Colorado freelancer tax guide →

Quick Answer

Freelancers in Colorado pay federal self-employment tax (15.3% on net income), federal income tax, and 4.40% Colorado state income tax. Use the calculator below to estimate your quarterly payment.

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Tax Information Notice

This content is for informational and educational purposes only. It does not constitute tax, legal, or financial advice. Tax laws change frequently. Always consult a qualified CPA or Enrolled Agent for your specific situation.

Tax Information Notice