Social Security benefits in Connecticut
Varies
Is Social Security Taxed in Connecticut?
Short answer: Partly. Social Security is fully exempt if federal AGI is below $75,000 (single or married filing separately) or $100,000 (married filing jointly, head of household, qualifying widow(er)). Above those levels, no more than 25% of benefits is taxable. Use the CT-1040 Social Security Benefit Adjustment Worksheet or the DRS online calculator to figure the partial subtraction. A 2026 legislative research report confirms these thresholds are unchanged.
Federally, up to 85% of benefits can be taxable depending on your combined income (IRS Pub 915); that part doesn't change by state.
Records to keep: Keep your state return, W-2s and 1099s (1099-R, SSA-1099), and any state credit worksheets. Check your state revenue department's current-year instructions before you file.
Social Security benefits in Connecticut
Varies
Individuals / Personal Taxes
Partly. Social Security is fully exempt if federal AGI is below $75,000 (single or married filing separately) or $100,000 (married filing jointly, head of household, qualifying widow(er)). Above those levels, no more than 25% of benefits is taxable. Use the CT-1040 Social Security Benefit Adjustment Worksheet or the DRS online calculator to figure the partial subtraction. A 2026 legislative research report confirms these thresholds are unchanged.
Business justification
Partly. Social Security is fully exempt if federal AGI is below $75,000 (single or married filing separately) or $100,000 (married filing jointly, head of household, qualifying widow(er)). Above those levels, no more than 25% of benefits is taxable. Use the CT-1040 Social Security Benefit Adjustment Worksheet or the DRS online calculator to figure the partial subtraction. A 2026 legislative research report confirms these thresholds are unchanged. Federally, up to 85% of benefits can be taxable depending on your combined income (IRS Pub 915); that part doesn't change by state.
Category
- Personal Tax Deductions