Colorado Self-Employment Tax Calculator 2026
Colorado freelancers pay the federal SE tax plus a flat 4.4% Colorado state income tax. Colorado starts from federal taxable income, so the half-SE-tax deduction applies.
Self-Employment Tax in Colorado
The federal self-employment tax rate is 15.3% (12.4% Social Security + 2.9% Medicare) on the first $176,100 of net self-employment income, then 2.9% above that threshold. This applies to all freelancers regardless of state. Colorado also collects 4.40% state income tax on your net self-employment earnings.
Use the Self-Employment Tax Calculator
Enter your net self-employment income below to calculate your exact SE tax obligation.
Open SE Tax Calculator →Colorado Freelancer Tax Summary
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.