Does Connecticut Tax Social Security?
Short answer: yes, but many retirees pay nothing
Connecticut taxes Social Security benefits above certain income thresholds, though many residents fall under those thresholds and owe nothing.
Social Security is fully exempt for single filers and those married filing separately with adjusted gross income under $75,000, and for joint or head-of-household filers under $100,000. Above the threshold, no more than 25% of Social Security benefits can be taxed.
- Whether you owe depends on your adjusted gross income and filing status, not just on living in Connecticut
- Most low- and middle-income retirees in Connecticut end up owing little or nothing on their Social Security specifically
- These thresholds are current for 2026 and are set by Connecticut law, which can change — verify before relying on any specific number, including this one
Other retirement income isn’t exempt
Social Security is partly exempt for many filers, but other retirement income generally isn’t. Pensions, 401(k) and IRA distributions, and investment income are subject to Connecticut’s state income tax like any other income.
Connecticut’s income tax rate
Connecticut has a graduated income tax with rates from 2% to 6.99%. Because state tax rates and brackets change from year to year, check the Tax Foundation’s current state income tax data before relying on any specific number, including this one.
Does Connecticut tax Social Security benefits?
What is Connecticut's income tax rate?
Connecticut has a graduated income tax with rates from 2% to 6.99%, which is the rate that applies once your Social Security income crosses the exemption thresholds described above.
Is other retirement income like pensions and 401(k) withdrawals taxed in Connecticut?
Generally yes — Connecticut taxes pensions, 401(k) and IRA distributions, and investment income at its regular state income tax rate, separately from the Social Security-specific rules above.
Where can I verify current Connecticut tax rules?
The figures above are sourced from Kiplinger’s state-by-state Social Security tax tracker, current as of 2026. For income tax rates generally, the Tax Foundation publishes current state-by-state data. Thresholds and rates change from year to year, so confirm current numbers before making a decision based on them.
Beyond taxes
Taxes are one factor in a retirement location decision, not the whole picture. Healthcare access, cost of living, climate, and proximity to family typically matter as much or more. If Connecticut otherwise fits what you’re looking for, its tax treatment of Social Security is worth weighing carefully alongside its income thresholds — just don’t let it be the only factor you weigh, and talk to a tax advisor about how your specific retirement income will be taxed.
This article is for educational purposes only and isn't legal, financial, or tax advice. See our Disclaimer for details.
