What is the self-employment tax rate in Connecticut?

Federal self-employment tax is 15.3%. Connecticut also has state income tax — use our calculator to find your total rate.

Does Connecticut have state income tax?

Yes, Connecticut has state income tax. Use our income tax brackets calculator to find your rate.

Connecticut Tax Calculators — 2026

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

Connecticut has seven progressive brackets up to 6.99%. Self-employed individuals must file quarterly estimated taxes.

Tax Calculators for Connecticut

Self-Employment Tax Calculator→Quarterly Tax Estimate Calculator→Income Tax Brackets→Freelancer Tax Guide→Tax Deduction Checklist→Business Registration Cost→LLC Filing Requirements→Sales Tax Registration→Independent Contractor Tax Calculator→Estimated Tax Deadlines→

Connecticut Tax Quick Facts

State Income Tax

Yes — up to 7%

Sales Tax

LLC Filing Fee

$120

Annual Report Fee

$80

Frequently Asked Questions

What taxes do self-employed people pay in Connecticut?

Self-employed individuals in Connecticut pay federal self-employment tax (15.3%) on net profit, plus federal income tax and Connecticut state income tax. You must make quarterly estimated payments if you expect to owe $1,000 or more.

Is Connecticut a good state for freelancers?

Connecticut 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.