Connecticut Income Tax 2026
Connecticut has a graduated income tax for 2026. The standard deduction is $0 (single) / $0 (married filing jointly). CT taxes income with 7 graduated brackets, 2% to 6.99% top rate (verified vs Tax Foundation 2026). NO standard deduction - uses personal exemptions (up to $15,000 single / $24,000 MFJ, phasing out $1,000 per $1,000 of CT AGI above $30,000 single / $48,000 MFJ) plus personal tax credits (1%-75% of tax, based on AGI). The 2024 reform cut the two lowest rates (3%->2% and 5%->4.5%); still in effect for 2026. CT has a 'tax benefit recapture' that phases out the benefit of lower brackets for high earners, so very-high-income filers effectively pay the top rate on all income. No local/city income taxes. Social Security benefits exempt for lower/middle incomes (full exemption below $75k single/$100k MFJ federal AGI, phased above). Pension and annuity income 100% exempt below those AGI thresholds (fully eliminated at $100k single/$150k MFJ); partial in between. CT residents working in NY claim a credit for NY tax paid to avoid double tax.
Connecticut tax brackets (single, 2026)
| Taxable income | Rate |
|---|---|
| $0 - $10,000 | 2.00% |
| $10,000 - $50,000 | 4.50% |
| $50,000 - $100,000 | 5.50% |
| $100,000 - $200,000 | 6.00% |
| $200,000 - $250,000 | 6.50% |
| $250,000 - $500,000 | 6.90% |
| $500,000+ | 6.99% |
Tax on common incomes in Connecticut (2026, single)
| Income | State tax | Take-home |
|---|---|---|
| $20,000 | $650 | $17,430 |
| $25,000 | $875 | $21,323 |
| $30,000 | $1,100 | $25,185 |
| $35,000 | $1,325 | $28,978 |
| $40,000 | $1,550 | $32,770 |
| $45,000 | $1,775 | $36,563 |
| $50,000 | $2,000 | $40,355 |
| $55,000 | $2,275 | $44,098 |
| $60,000 | $2,550 | $47,840 |
| $65,000 | $2,825 | $51,583 |