Connecticut Income Tax Brackets — 2026
Find your tax bracket based on income and filing status. Compare federal and state tax rates side by side.
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Quick Connecticut Tax Estimate
Based on Connecticut's tax rates for 2026. Enter your details for a personalized calculation.
State Tax on $80K Profit
$1,651.17
SE Tax
$11,303.64
Effective Rate
22.2%
Marginal Rate
12%
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Connecticut Tax Information
State Income TaxYes
Top Marginal Rate7%
Sales Tax0%
LLC Filing Fee$0
Annual Report Fee$None
Standard DeductionN/A
Self-employed pay both federal and Connecticut state tax.
Connecticut Income Tax Brackets (2026)
| Tax Rate | From | To |
|---|---|---|
| 2% | $0 | $10,000 |
| 4.5% | $10,000 | $50,000 |
| 5.5% | $50,000 | $100,000 |
| 6% | $100,000 | $200,000 |
| 6.5% | $200,000 | $250,000 |
| 6.9% | $250,000 | $500,000 |
| 7% | $500,000 | No limit |
Connecticut Quarterly Tax Deadlines
Q1
Apr 15
Q2
Jun 16
Q3
Sep 15
Q4
Jan 15
Frequently Asked Questions
What are the 2026 tax brackets for Connecticut?
Federal brackets range from 10% to 37%. Connecticut tax rates are shown above on this page. Compare your marginal rate to understand how each additional dollar of income is taxed.
How does Connecticut income tax compare to other states?
Nine states (AK, FL, NV, NH, SD, TN, TX, WA, WY) have no income tax. Connecticut rates are shown above. Use our state comparison tool to compare tax burdens across states.
What is the standard deduction in Connecticut?
The federal standard deduction for 2026 is $16,100 (single) or $32,200 (married joint). Connecticut may have its own standard deduction — check the details on this page.
Do I pay Connecticut tax if I work remotely for an out-of-state company?
Generally, you pay tax in the state where you physically work. If you work remotely from Connecticut, you owe Connecticut income tax on that income. Some states have reciprocity agreements.
What's my marginal tax rate in Connecticut?
Your marginal rate is the tax rate on your last dollar of income. For 2026, federal rates are 10%, 12%, 22%, 24%, 32%, 35%, or 37%. Combined with Connecticut rates, use our calculator to find your exact marginal rate.
Disclaimer:This calculator provides estimates for informational purposes only. It does not constitute tax advice, financial advice, or legal advice. Tax laws change frequently and vary by individual circumstances. Results may not reflect your actual tax liability. Always consult a qualified CPA, tax professional, or financial advisor before making tax decisions. For official tax information, visit IRS.gov.