2. Connecticut

Connecticut taxes Social Security benefits depending on income thresholds.

For 2026, single filers with adjusted gross income above certain limits may see their Social Security partially taxed. Married couples filing jointly face higher thresholds.

The state has gradually phased out taxation for many lower- and middle-income retirees, but higher earners may still be affected.

Connecticut also has relatively high property taxes, which retirees should factor into overall relocation