Connecticut income tax calculator
Connecticut taxes income at rates from 2% to 6.99%. See your Connecticut tax next to federal and payroll tax.
Effective state rate 4.6% · top rate 6.99%. Ranks #39 of 51 for this income (1 = lowest).
Connecticut income tax in 2026
Connecticut has a personal exemption and a low-income credit that phase out with income; they are not modelled, so the estimate runs high for incomes under about $75,000.
Connecticut brackets (single filers)
| Rate | Taxable income over |
|---|---|
| 2% | $0 |
| 4.5% | $10,000 |
| 5.5% | $50,000 |
| 6% | $100,000 |
| 6.5% | $200,000 |
| 6.9% | $250,000 |
| 6.99% | $500,000 |
Joint filers’ brackets are twice as wide.
This is a simplified model: it covers the main deduction, exemptions and brackets but not every state credit. Check the Connecticut Department of Revenue for your return. More in the methodology.
Questions people ask
What is the Connecticut income tax rate for 2026?
Connecticut has graduated rates from 2% to 6.99% in 2026. Connecticut has a personal exemption and a low-income credit that phase out with income; they are not modelled, so the estimate runs high for incomes under about $75,000.
How much Connecticut tax will I pay on $75,000?
Enter $75,000 in the calculator above for your filing status; it shows the exact bracket split, the effective state rate and how Connecticut ranks against every other state at that income.
Does Connecticut have local income taxes?
Connecticut does not have widespread local income taxes, so the state figure is usually the whole story.
Nearby in the list: Colorado · Delaware · all states