Connecticut Income Tax for Single Filer (2026)
Filing as a Single Filer in Connecticut? Heres everything you need to know about the state income tax: brackets, standard deduction, and worked examples for common income levels.
Connecticut Tax Brackets (2026)
For Single Filer in Connecticut, the tax brackets for 2026 are:
| Taxable Income | Tax Rate |
|---|---|
| $0 - $10,000 | 2.0% |
| $10,000 - $50,000 | 4.5% |
| $50,000 - $100,000 | 5.5% |
| $100,000 - $200,000 | 6.0% |
| $200,000 - $250,000 | 6.5% |
| $250,000 - $500,000 | 6.9% |
| $500,000 - $1,000,000 | 6.99% |
The standard deduction for Single Filer in Connecticut is $14,600. You can take this deduction or itemize, whichever results in a lower tax bill.
$75,000 Income Example
Lets say youre a Single Filer in Connecticut earning $75,000/year. After the $14,600 standard deduction, your taxable income is $60,400. Your Connecticut state tax is approximately:
Your effective state tax rate is 3.4%. This is on top of federal income tax (and local taxes if applicable).
More Examples for Single Filer in Connecticut
| Gross Income | Taxable Income | State Tax | Effective Rate |
|---|---|---|---|
| $50,000 | $35,400 | $1,343 | 2.7% |
| $75,000 | $60,400 | $2,572 | 3.4% |
| $100,000 | $85,400 | $3,947 | 3.9% |
| $150,000 | $135,400 | $6,874 | 4.6% |
| $200,000 | $185,400 | $9,874 | 4.9% |
Connecticut-Specific Deductions and Credits
Beyond the standard deduction, Connecticut offers several tax deductions and credits that can reduce your tax bill:
- Retirement income exclusion: Some states exclude retirement income for seniors
- Property tax credit: Available in some states for homeowners and renters
- Earned Income Tax Credit (EITC): Some states have their own EITC in addition to the federal one
- Child and dependent care credit: Available in many states
- Education credits: 529 plan contributions or tuition deductions may be available
Use the Connecticut income tax calculator to model your specific situation, including deductions and credits.
Try the Calculator
Get an exact number based on your income, deductions, and credits.
Open Calculator →How to File Connecticut Income Tax
Filing Connecticut state taxes depends on your residency status:
- Connecticut residents: File Form ST-CT-1 with your state Department of Revenue. Due April 15 (same as federal).
- Part-year residents: File Form ST-CT-1-PR, reporting only income earned while a resident
- Non-residents: File Form ST-CT-1-NR if you earned income in Connecticut
Frequently Asked Questions
What is the Connecticut tax bracket for Single Filer?
The Connecticut tax brackets for Single Filer range from 2.0% to 6.99%. The standard deduction is $14,600.
How much Connecticut tax do I owe on a $75K income as a Single Filer?
On a $75,000 income as a Single Filer in Connecticut, you owe approximately $2,572 in state income tax. Your effective state tax rate is 3.4%.
What is the standard deduction for Single Filer in Connecticut?
The standard deduction for Single Filer in Connecticut is $14,600. You can take this or itemize, whichever is higher.