Connecticut Income Tax 2025
Per IRS inflation adjustments, Connecticut (CT) has 7 income tax brackets ranging from 3.0% to 7.0% for 2025.
2025 Tax Brackets — Single Filer
| Tax Rate | Taxable Income Range |
|---|---|
| 3.0% | $0 — $10,000 |
| 5.0% | $10,000 — $50,000 |
| 5.5% | $50,000 — $100,000 |
| 6.0% | $100,000 — $200,000 |
| 6.5% | $200,000 — $250,000 |
| 6.9% | $250,000 — $500,000 |
| 7.0% | $500,000+ |
Standard Deduction
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Frequently Asked Questions
Connecticut (CT) has 7 income tax brackets ranging from 3.0% to 7.0% for tax year 2025.
The Connecticut standard deduction for 2025 is $0 for single filers and $0 for married filing jointly.
Connecticut is one of 41 states that levy a state income tax. 9 states have no state income tax at all. Use our calculators to compare your tax burden across states.
State tax treatment of retirement income varies. Check Connecticut's specific rules for Social Security, pensions, and 401(k) withdrawals. Consult a tax professional for personalized guidance.
Tax brackets and rates for 2025. Not tax advice — consult a qualified tax professional for your specific situation.