Connecticut has progressive income tax rates from 2% to 6.99% — among the higher rates in the Northeast.
Connecticut Income Tax Rates for 2026
Bracket thresholds below reflect the last confirmed structure; confirm exact current-year thresholds with Connecticut DRS, as they can be adjusted.
Single Filers
| 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% |
| Over $500,000 | 6.99% |
Married Filing Jointly
| Taxable Income | Tax Rate |
|---|---|
| $0 - $20,000 | 2.0% |
| $20,000 - $100,000 | 4.5% |
| $100,000 - $200,000 | 5.5% |
| $200,000 - $400,000 | 6.0% |
| $400,000 - $500,000 | 6.5% |
| $500,000 - $1,000,000 | 6.9% |
| Over $1,000,000 | 6.99% |
Connecticut Tax Calculator Examples
Example 1: $75,000 Single Filer
| Component | Calculation |
|---|---|
| Taxable income | $75,000 |
| Tax on first $10,000 | $200 |
| Tax on $10,000 - $50,000 | $1,800 |
| Tax on $50,000 - $75,000 | $1,375 |
| Total CT state tax | $3,375 |
| Effective rate | 4.5% |
Example 2: $150,000 Married Filing Jointly
| Component | Calculation |
|---|---|
| Taxable income | $150,000 |
| Tax on first $20,000 | $400 |
| Tax on $20,000 - $100,000 | $3,600 |
| Tax on $100,000 - $150,000 | $2,750 |
| Total CT state tax | $6,750 |
| Effective rate | 4.5% |
Connecticut Personal Exemptions
Connecticut doesn’t have a standard deduction like the federal system. Instead, it offers personal exemptions that phase out at higher incomes. Confirm current amounts with Connecticut DRS, as these figures were not independently re-verified this session:
| Filing Status | Exemption (confirm current amount) | Phase-out Begins |
|---|---|---|
| Single | ~$15,000 | ~$30,000 AGI |
| MFJ | ~$24,000 | ~$48,000 AGI |
| Head of Household | ~$19,000 | ~$38,000 AGI |
The exemption is completely phased out at higher income levels.
Connecticut Tax Credits
Property Tax Credit
Connecticut offers a property tax credit. Confirm the current maximum credit amount and income limits with CT DRS, as this credit’s cap has changed in recent legislative sessions.
Earned Income Tax Credit
Connecticut provides a refundable EITC as a percentage of the federal EITC. Confirm the current percentage with CT DRS, as it has been adjusted by the legislature in recent years.
Child Tax Rebate
Connecticut has periodically offered child tax rebates. Check CT DRS for current programs, as these are not permanent annual benefits.
What Income is Taxed in Connecticut?
Taxed:
- Wages and salaries
- Self-employment income
- Interest and dividends
- Capital gains (taxed as ordinary income)
- 401(k) and traditional IRA distributions
- Most pension income
- Rental income
Not taxed or exempt:
- Social Security — Exempt if AGI below certain thresholds (see below)
- Teacher Retirement System benefits
- Some military retirement pay
- Connecticut municipal bond interest
Social Security Taxation
| Filing Status | Full Exemption Below (confirm current threshold) |
|---|---|
| Single | ~$75,000 AGI |
| Married Filing Jointly | ~$100,000 AGI |
Above these thresholds, a portion becomes taxable. Confirm exact current thresholds with CT DRS.
Connecticut vs. Neighboring States
| State | Top Income Tax Rate |
|---|---|
| Connecticut | 6.99% |
| Massachusetts | 5.0% (flat) + 4% surtax above $1,107,750 (2026) |
| New York | 10.9% |
| Rhode Island | Confirm current top rate |
| New Jersey | 10.75% |
Local Income Taxes
Connecticut does not have local income taxes. Only the state tax applies.
Filing Connecticut State Taxes
| Filing Requirement | Details |
|---|---|
| Form | CT-1040 |
| Due date | April 15 (with federal) |
| E-file | Yes, through CT DRS |
| Extension | 6-month with federal |
Connecticut Property Tax
Connecticut has some of the highest property taxes in the nation. Confirm the current average effective rate with a source like the Tax Foundation, as this figure changes over time and was not independently re-verified this session.
Connecticut Sales Tax
- State rate: 6.35%
- Groceries exempt
- Clothing under a specified threshold exempt (confirm current threshold)
Tips to Reduce Connecticut Taxes
- Claim property tax credit — if eligible (confirm current maximum amount)
- Max retirement contributions — 401(k), IRA reduce taxable income
- CT EITC — confirm current percentage of federal credit
- Social Security planning — Keep AGI below exemption thresholds
- 529 contributions — Connecticut offers a deduction; confirm current limits
- HSA contributions — Triple tax advantage at the federal level
Connecticut Tax Authority
Connecticut Department of Revenue Services (DRS)
- Website: portal.ct.gov/DRS
- Phone: 860-297-5962
- For refunds, returns, and questions
Bottom Line
Connecticut has progressive income tax rates from 2% to 6.99%, with the top rate for higher incomes. The state offers Social Security exemptions for lower incomes and a property tax credit. Combined with some of the nation’s highest property taxes, Connecticut’s overall tax burden is above average.
For a side-by-side comparison of every state’s income tax rates, see state income tax rates by state 2026 and best and worst states for taxes 2026. Federal income tax applies on top of state taxes — see 2026 federal income tax brackets to calculate your combined liability.
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