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Connecticut State Income Tax Calculator (2025)

Calculate your Connecticut state income tax for 2025. Seven brackets, personal tax credit, and recapture provisions.

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Connecticut State Tax

$3,475

4.63%

CT Effective Rate

Effective Rate

4.63%

CT AGI

$75,000

After-Tax Income

$71,525

Summary

On $75,000 gross income, you owe an estimated $3,475 in Connecticut state taxes for 2025.

Connecticut has 3 progressive brackets from 2.00% to 5.50% for 2025. The lowest rates were reduced from 3%/5% to 2%/4.5% starting in 2024.

Connecticut has no standard deduction. Instead, it offers a personal tax credit for lower-income filers, but your CT AGI of $75,000 exceeds the credit threshold.

Connecticut's recapture provisions add $100 to your tax ($100 low-bracket phase-out). These provisions phase out the benefit of lower brackets for higher earners.

Your top Connecticut bracket is 5.50%, but progressive taxation means your effective rate is 4.63% — lower than your marginal rate.

Tax by Bracket

2.00% bracket$200
4.50% bracket$1,800
5.50% bracket$1,375

Connecticut Bracket Breakdown(+$100 recapture)

3 rows

RateFromToTaxableTax
2.00%$0$10,000$10,000$200
4.50%$10,000$50,000$40,000$1,800
5.50%$50,000$75,000$25,000$1,375

Connecticut state income tax only — includes personal tax credit and recapture provisions. Does not account for local taxes, additional credits, or special situations. Not tax advice.

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