Connecticut Income Tax Calculator
Estimate your 2026 federal and Connecticut state income tax, FICA and take-home pay from your income and filing status.
Advertisement
About the Connecticut Income Tax Calculator
This Connecticut income tax calculator estimates your 2026 federal income tax, Social Security and Medicare tax and Connecticut state income tax from your income and filing status. It applies the CT state brackets, standard deduction and personal exemption, and shows your take-home pay.
How to use it
- Enter your annual income and filing status.
- Add pre-tax deductions such as 401(k) and HSA contributions.
- Press Calculate tax to see your federal, FICA and Connecticut state tax and take-home pay.
Connecticut income tax brackets for 2026 (single filers)
Connecticut taxes wage income with graduated rates from 2% to 6.99%. The state standard deduction is $0 and the personal exemption is $15,000 for single filers where applicable.
| Taxable income | Rate |
|---|---|
| $0 to $10,000 | 2% |
| $10,000 to $50,000 | 4.5% |
| $50,000 to $100,000 | 5.5% |
| $100,000 to $200,000 | 6% |
| $200,000 to $250,000 | 6.5% |
| $250,000 to $500,000 | 6.9% |
| $500,000 and up | 6.99% |
Source: Tax Foundation, 2026 state individual income tax rates and brackets. Local taxes are not included.
Connecticut state income tax at common salaries
| Gross income | CT income tax | Effective rate |
|---|---|---|
| $40,000 | $875 | 2.19% |
| $60,000 | $1,775 | 2.96% |
| $80,000 | $2,825 | 3.53% |
| $100,000 | $3,925 | 3.92% |
| $150,000 | $6,850 | 4.57% |
Single filer, after the state standard deduction and personal exemption.
Frequently asked questions
How much is state income tax in Connecticut?
As of 2026, Connecticut has graduated rates from 2% to 6.99%.
What is the Connecticut standard deduction?
For single filers the Connecticut standard deduction is $0 and the personal exemption is $15,000. Rules can differ by filing status.
How much tax would I pay on $80,000 in Connecticut?
A single filer with $80,000 of income pays about $2,825 in CT state income tax, an effective rate of 3.53%.
Does Connecticut tax Social Security?
Most states do not tax Social Security benefits, but a few do. Check the state revenue department for current rules.
Does this include local income tax?
No. Some cities and counties levy local income taxes. Confirm with your local government.
Last reviewed: November 2026. Estimates only, not tax advice.