Connecticut Paycheck Calculator

Connecticut state income tax — what you need to know

Connecticut has 7 brackets. Top rate 6.99% on income above $500k.

Connecticut uses progressive brackets — the more you earn, the higher your marginal rate climbs. The top rate is 6.99% on single-filer income above the top bracket threshold. MFJ brackets are 2× the single thresholds.

Connecticut single-filer brackets (2026)

• $0 – $10,000: 3%
• $10,000 – $50,000: 5%
• $50,000 – $100,000: 5.5%
• $100,000 – $200,000: 6%
• $200,000 – $250,000: 6.5%
• $250,000 – $500,000: 6.9%
• above $500,000: 6.99%

How we compute your Connecticut take-home

1. Start with your annual gross wage income.
2. Subtract pre-tax deductions (401(k), HSA, pre-tax insurance premiums).
3. Apply federal income tax using the 2026 projected IRS brackets + standard deduction.
4. Apply FICA: 6.2% Social Security up to $184,500 wage base, 1.45% Medicare on all wages plus 0.9% additional Medicare above the filing-status threshold.
5. Apply Connecticut state tax per the rules above.
6. Divide by your pay frequency (weekly / bi-weekly / semi-monthly / monthly) for per-paycheck take-home.

For estimation only — state tax has nuances (local city taxes, tax credits, itemized deductions) we don't model. Always confirm with a CPA or your state's revenue department for filing.