Connecticut income tax calculator
Estimate your 2026 Connecticut and federal income tax and whether you will get a refund. A single filer earning $75,000 owes about $3,476 in Connecticut income tax and $7,676 in federal income tax.
By John Crane, MBA & the Editorial Team · Updated for the 2026 tax year. How we check our numbers
Estimated federal amount owed
$876.00
Federal tax $9,876 · Connecticut owed $4,076
| Federal tax | $9,876 | 11.6% |
|---|---|---|
| Connecticut and local tax | $4,076 | 4.8% |
| Income after these taxes | $71,048 | 83.6% |
- Adjusted gross income
- $85,000
- Taxable income
- $68,900
- Deduction used
- Standard $16,100
- Federal bracket
- 22%
- Effective federal rate
- 11.6%
- CT tax after credits
- $4,076
Where your federal tax comes from
Ordinary income by bracketFederal return summary
Form 1040, 2026| Line | Amount |
|---|---|
| Total income | $85,000.00 |
| Adjustments | -$0.00 |
| Adjusted gross income | $85,000.00 |
| Standard deduction | -$16,100.00 |
| Taxable income | $68,900.00 |
| Income tax | $9,876.00 |
| Total federal tax | $9,876.00 |
| Withholding and estimated payments | $9,000.00 |
| Federal amount owed | $876.00 |
Connecticut return
Latest rules (2026)| Line | Amount |
|---|---|
| State taxable income | $85,000.00 |
| Tax before credits | $4,076.00 |
| State tax after credits | $4,076.00 |
| State withheld | $0.00 |
| State amount owed | $4,076.00 |
- 2025 instructions; statutory amounts are not indexed and unchanged for 2026.
Income tax in Connecticut
- Connecticut has seven brackets from 2% to 6.99% and no standard deduction; instead, a personal exemption of $15,000 single or $24,000 joint phases out as income rises, and a personal tax credit and benefit recapture adjust the tax by income.
- Social Security is fully exempt below $75,000 of federal AGI ($100,000 joint or head of household), and above that no more than 25% of benefits is taxed.
- Pension, annuity and, from 2026, all non-Roth IRA income can be subtracted in full below $75,000 of federal AGI ($100,000 joint), phasing out completely at $100,000 ($150,000 joint).
- Credits include a refundable EITC of 40% of the federal credit plus $250 for filers with a qualifying child and a property tax credit of up to $300; there is no local income tax.
2026 income tax at common incomes (wages only, standard deduction)
| Income | Federal tax, single | Connecticut tax, single | Connecticut rate, single | Connecticut tax, married |
|---|---|---|---|---|
| $40,000 | $2,623 | $1,234 | 3.1% | $224 |
| $60,000 | $5,023 | $2,345 | 3.9% | $1,536 |
| $75,000 | $7,676 | $3,476 | 4.6% | $2,589 |
| $100,000 | $13,176 | $4,977 | 5.0% | $3,961 |
| $150,000 | $24,734 | $8,225 | 5.5% | $7,250 |
Rates
Top rate 6.99%. At $75,000 of wages, each extra $1,000 adds about $55 of Connecticut tax.
Family example
A married couple earning $60,000 with two children and $4,000 of child care: Connecticut tax of $1,536 before credits, credits of Connecticut EITC ($747), for $789 owed.
Local income tax
None figured on the Connecticut return.
Examples assume wages only, the standard deduction and no other income. These state figures are an estimate; see the sources note. See what comes out of each check in the Connecticut paycheck calculator.
More for Connecticut: Connecticut paycheck calculator · Connecticut mortgage calculator · Connecticut home affordability calculator
Income tax calculators for other states
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How this is calculated
Federal return
The 2026 Form 1040: standard or itemized deduction, the new Schedule 1-A deductions, tax rates, child tax credit, child and dependent care credit and EITC.
Connecticut
Connecticut's 2026 resident return: its starting point, Social Security and retirement adjustments, deductions, exemptions, rates and main credits.
Sources
Official Connecticut tax guidance (3 sources), checked for 2026. 2025 instructions; statutory amounts are not indexed and unchanged for 2026.
Sources
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Questions
How much Connecticut income tax do I pay on $75,000?
About $3,476 for a single filer with only wage income and the standard deduction (4.6% of income), or $2,589 for a married couple filing jointly on the same income. Federal income tax on $75,000 for a single filer is about $7,676.
What is Connecticut's top income tax rate in 2026?
6.99% on the highest incomes. At $75,000 of wages, each extra $1,000 adds about $55 of Connecticut tax.
Does Connecticut tax Social Security and retirement income?
A single retiree aged 67 with $30,000 of Social Security and $30,000 of pension or IRA withdrawals owes no Connecticut income tax in 2026 once the state's exclusions, deductions and rates are applied.