Connecticut Income Tax Rates 2025
Connecticut has a progressive income tax system with 7 brackets ranging from 2% to 6.99%. The state also applies a tax recapture provision that can increase effective rates for higher earners.
Tax Type
Progressive
Rate Range
2% – 6.99%
Brackets
7
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Connecticut is only part of the equation — federal taxes apply too.
State Tax Ranking
At $75,000 income (single filer), Connecticut ranks #25 out of 51 states — where #1 is the lowest tax burden.
Best states to move to from Connecticut →Tax at Different Income Levels
| Income | State Tax | Effective Rate | Take-Home |
|---|---|---|---|
| $50,000 | $2,000 | 4.00% | $44,129 |
| $75,000 | $3,375 | 4.50% | $63,676 |
| $100,000 | $4,750 | 4.75% | $81,801 |
| $150,000 | $7,750 | 5.17% | $117,183 |
| $200,000 | $10,750 | 5.38% | $152,183 |
Single filer, standard deduction, 2025 tax year. Take-home is after federal + state income tax (excludes FICA).
2025 Tax Brackets — Single Filer
| Taxable Income | Rate |
|---|---|
| $0 – $10,000 | 2% |
| $10,000 – $50,000 | 4.5% |
| $50,000 – $100,000 | 5.5% |
| $100,000 – $200,000 | 6% |
| $200,000 – $250,000 | 6.5% |
| $250,000 – $500,000 | 6.9% |
| Over $500,000 | 7.0% |
2025 Tax Brackets — Married Filing Jointly
| Taxable Income | Rate |
|---|---|
| $0 – $20,000 | 2% |
| $20,000 – $100,000 | 4.5% |
| $100,000 – $200,000 | 5.5% |
| $200,000 – $400,000 | 6% |
| $400,000 – $500,000 | 6.5% |
| $500,000 – $1,000,000 | 6.9% |
| Over $1,000,000 | 7.0% |
Tax Overview
This state uses a progressive income tax system with multiple brackets, similar to the federal system. Only the income within each bracket is taxed at that rate, so your effective state rate is lower than the top bracket. Tax planning strategies include maximizing pre-tax retirement contributions to reduce state-taxable income.
Tax Planning Tip
In a progressive-bracket state, pre-tax 401(k) and HSA contributions reduce your state tax bill along with federal tax. If you are near a bracket boundary, an additional contribution can drop you into a lower state bracket.
Connecticut's progressive income tax applies marginal rates to each income bracket. The state also has a unique "tax recapture" provision that phases out the benefit of lower brackets for high-income taxpayers, which can push effective rates above the stated top marginal rate for some earners. Connecticut exempts Social Security benefits from taxation for taxpayers below certain income thresholds. The state sales tax rate is 6.35%, and property taxes in Connecticut are among the highest in the nation.
Property Tax & Cost of Living
Property tax rate is the state average effective rate. Actual rates vary by county. COL index from BEA Regional Price Parities.
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Frequently asked questions
What is Connecticut's income tax rate in 2025?
Connecticut has a progressive income tax with 7 brackets ranging from 2% to 6.99%. Your effective rate depends on your total taxable income.
Does Connecticut tax Social Security benefits?
Connecticut exempts Social Security benefits from taxation for taxpayers below certain income thresholds.