Connecticut Taxes 2025
Complete tax guide and OBBBA calculator for CT residents
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Connecticut Tax Overview 2025
State Income Tax
3% - 6.99%
Graduated rate structure
Combined Sales Tax
6.35%
State 6.35% + Local 0.00%
Avg Property Tax
2.14%
One of the highest property tax rates in the nation
💼 Connecticut Income Tax 2025
Connecticut has graduated income tax rates from 3% to 6.99%.
When filing your Connecticut state tax return, your income tax liability depends on your taxable income and filing status. Connecticut uses a graduated income tax structure.
Connecticut Income Tax Quick Facts
🛒 Connecticut Sales Tax 2025
Connecticut's combined average sales tax rate is 6.35%, which includes both state and local components. The state sales tax rate is 6.35%, while local jurisdictions add an average of 0.00%.
Sales Tax Breakdown
💡 Tip: Local sales tax rates vary by city and county. Your actual rate may be higher or lower depending on where you shop.
🏠 Connecticut Property Tax 2025
Connecticut's average effective property tax rate is 2.14%. One of the highest property tax rates in the nation.
Property taxes in Connecticut are assessed at the local level by counties and municipalities. Rates can vary significantly between jurisdictions.
Example Annual Property Tax
| Home Value | Est. Annual Tax | Monthly |
|---|---|---|
| $250,000 | $5,350 | $446 |
| $400,000 | $8,560 | $713 |
| $600,000 | $12,840 | $1,070 |
OBBBA Tax Benefits for Connecticut Residents
Connecticut residents see major benefits from the $40,000 SALT cap due to high property taxes.
The One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, introduced several new federal tax deductions that Connecticut residents can claim starting with their 2025 tax returns.
Available OBBBA Deductions for CT Residents:
Calculate Your Connecticut Tax Savings
Use our free OBBBA calculator to see exactly how much you could save on your 2025 federal taxes as a Connecticut resident.
Calculate My SavingsHow Connecticut Compares
| Tax Type | CT Rate | US Average | Comparison |
|---|---|---|---|
| Income Tax (Top Rate) | 3% - 6.99% | 5.1% | Varies |
| Sales Tax | 6.35% | 7.12% | Below Avg |
| Property Tax | 2.14% | 1.10% | Above Avg |
Frequently Asked Questions
What is the income tax rate in Connecticut?
Connecticut has a graduated income tax with rates of 3% - 6.99%. Connecticut has graduated income tax rates from 3% to 6.99%.
What is the sales tax in Connecticut?
The combined average sales tax rate in Connecticut is 6.35%. This includes the state rate of 6.35% plus an average local rate of 0.00%.
How do OBBBA deductions benefit Connecticut residents?
Connecticut residents see major benefits from the $40,000 SALT cap due to high property taxes. Connecticut residents can claim tips, overtime, auto loan interest, SALT, and senior bonus deductions on their federal returns.
When are Connecticut taxes due?
For tax year 2025, Connecticut state taxes are due on April 15, 2026, the same date as federal taxes. Extensions may be available if you need more time to file.