Quick answer
Connecticut taxes income in 7 brackets from 2.00% to 6.99% for 2026; for single filers the top rate starts above $500,000; the personal exemption is $15,000, per the Tax Foundation's compilation of state law as of January 1, 2026.
Data as of 2026-01-01. Source: Tax Foundation (state statutes, Jan 1 2026)
| Single rate | Single: income over | Married-joint rate | Married-joint: income over |
|---|---|---|---|
| 2.00% | $0 | 2.00% | $0 |
| 4.50% | $10,000 | 4.50% | $20,000 |
| 5.50% | $50,000 | 5.50% | $100,000 |
| 6.00% | $100,000 | 6.00% | $200,000 |
| 6.50% | $200,000 | 6.50% | $400,000 |
| 6.90% | $250,000 | 6.90% | $500,000 |
| 6.99% | $500,000 | 6.99% | $1,000,000 |
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Last updated 2026-10-16. Data only, not financial or tax advice.