Colorado Tax Calculators — 2026

Free self-employment and income tax calculators for Colorado residents. Updated for the 2026 tax year.

Colorado has a flat 4.4% income tax. Standard deduction conforms to federal ($16,100). Self-employed pay both federal and state tax.

Tax Calculators for Colorado

Colorado Tax Quick Facts

State Income Tax
Yes — up to 4%
Sales Tax
3%
LLC Filing Fee
$50
Annual Report Fee
$10

Frequently Asked Questions

What taxes do self-employed people pay in Colorado?
Self-employed individuals in Colorado pay federal self-employment tax (15.3%) on net profit, plus federal income tax and Colorado state income tax. You must make quarterly estimated payments if you expect to owe $1,000 or more.
Is Colorado a good state for freelancers?
Colorado has state income tax which adds to your total tax burden. Compare with no-tax states (FL, TX, NV, WA, etc.) using our state comparison tool to see potential savings.