About the Connecticut Paycheck Calculator
Connecticut has a progressive state income tax with rates from 3% to 6.99%. This calculator uses Connecticut's actual 2025 tax brackets — applied after the Connecticut personal exemption ($16,100 single / $24,000 married) — alongside federal income tax, Social Security, and Medicare to give you a realistic take-home pay estimate.
Connecticut consistently ranks among the highest-tax states in New England. A single Connecticut filer earning $80,000 pays approximately $4,200–$5,000 in state income tax annually, on top of federal taxes and FICA. The calculator reflects the actual progressive bracket structure, not a single flat rate.
Results are bracket-based estimates. Connecticut has no local income taxes — all state income tax is collected at the state level. SDI (Connecticut's Paid Leave contribution, approximately 0.5% of wages) is not included in this calculator.
📚 Sources & Last Updated
- Connecticut Department of Revenue Services — Individual Income Tax
- IRS Topic 751 — Social Security & Medicare Withholding Rates
- SSA 2025 COLA Fact Sheet — $184,500 Wage Base
- CT Department of Revenue Services — Individual Income Tax
Last updated: April 2026 · Tax year: 2026