Connecticut

State Income Tax

2–6.99%

Rate Range

Taxable

Social Security

2026-04-15

Filing Deadline

7 brackets

Structure

Full Tax Details

Has Income TaxYes

Tax Structure7 Brackets

Rate2–6.99%

Single Standard Deduction$15,000

Married Standard Deduction$24,000

Single Personal ExemptionN/A

Married Personal ExemptionN/A

Taxes Social SecurityYes

Taxes Retirement IncomeYes

Filing Deadline2026-04-15

Retirement Income Details

Social Security may be exempt based on AGI; pension and IRA distributions 100% deductible by 2026 for most.

Official Payment Portal

Connecticut Department of Revenue

Last verified: 2026-03-31 · Always consult a tax professional before making financial decisions.