Connecticut Self-Employment Tax Calculator 2026
Connecticut has a graduated income tax with rates ranging from 2.0% to 7.0%. Use this calculator to estimate your total tax liability including federal self-employment tax, federal income tax, and Connecticut state income tax.
Your 2026 Tax Estimate — Connecticut
Total Tax
$0
Take Home
$0
Effective Rate
0%
Quarterly Payment
$0
Tax Breakdown
Quarterly Estimated Tax Schedule
Self-Employment Tax in Connecticut (CT)
If you're self-employed in Connecticut, you'll pay three types of tax on your 1099 income: federal self-employment tax (15.3%), federal income tax (10-37% depending on your bracket), and Connecticut state income tax. Connecticut has a graduated income tax with rates ranging from 2.0% to 7.0%.
Important note: Connecticut has a personal tax credit that phases out for higher incomes.
Connecticut Income Tax Brackets (2026)
| Income Range | Tax Rate |
|---|---|
| $0 – $10,000 | 2.00% |
| $10,000 – $50,000 | 4.50% |
| $50,000 – $100,000 | 5.50% |
| $100,000 – $200,000 | 6.00% |
| $200,000 – $250,000 | 6.50% |
| $250,000 – $500,000 | 6.90% |
| Over $500,000 | 6.99% |
How Self-Employment Tax Works
The federal self-employment tax rate is 15.3% — covering both Social Security (12.4%) and Medicare (2.9%). This is calculated on 92.35% of your net self-employment earnings. For 2026, Social Security tax applies to earnings up to $176,100. You can deduct half of your SE tax when calculating your federal income tax, which reduces your overall tax burden.
Other States
No Income Tax States
Connecticut Tax Quick Facts
- Income Tax
- Yes
- Tax Type
- graduated
- Top Rate
- 6.99%
- Federal SE Tax
- 15.3%