Connecticut State Income Tax Overview
Connecticut (CT) state income tax rate: 6.99% (graduated rate system)
Connecticut Income Tax Brackets (2026)
3% on first $10,000; 5% on $10,001–$50,000; 5.5% on $50,001–$100,000; 6% on $100,001–$200,000; 6.5% on $200,001–$250,000; 6.9% on $250,001–$500,000; 6.99% above $500,000 (single filer)
Connecticut has a relatively high top rate of 6.99%. The state also has a "benefit recapture" rule that phases out the lower-bracket rates for high earners, effectively taxing all income at the top rate above certain thresholds.
Median Household Income in Connecticut
The median household income in Connecticut is $79,855. Connecticut has one of the highest median household incomes nationally, concentrated in Fairfield County (NYC commuter area). Despite high incomes, Connecticut's fiscal challenges have kept income tax rates elevated.
How to Use This Calculator for Connecticut
- Enter your gross income and filing status
- The calculator applies Connecticut's graduated income tax rate of up to 6.99%
- Subtract your standard deduction and any applicable credits
- Review your estimated state and federal tax liability
Frequently Asked Questions
What is the Connecticut state income tax rate?
Connecticut has a graduated income tax with a top rate of 6.99%. 3% on first $10,000; 5% on $10,001–$50,000; 5.5% on $50,001–$100,000; 6% on $100,001–$200,000; 6.5% on $200,001–$250,000; 6.9% on $250,001–$500,000; 6.99% above $500,000 (single filer).
How does Connecticut's income tax compare to the national average?
Connecticut's top income tax rate of 6.99% applies to a graduated rate system. Connecticut has a relatively high top rate of 6.99%. The state also has a "benefit recapture" rule that phases out the lower-bracket rates for high earners, effectively taxing all income at the top rate above certain thresholds.
What is the median household income in Connecticut?
The median household income in Connecticut is $79,855. Connecticut has one of the highest median household incomes nationally, concentrated in Fairfield County (NYC commuter area). Despite high incomes, Connecticut's fiscal challenges have kept income tax rates elevated.
Is this state income tax calculator free to use for Connecticut?
Yes, this state income tax calculator is 100% free with no signup required. It includes Connecticut-specific tax rates and calculates your estimated state and federal tax liability instantly.