How much of your benefit is taxable?
Many retirees are surprised to learn that Social Security benefits can be subject to federal income tax. Whether and how much is taxable depends on your "provisional income" β a combination of your adjusted gross income (AGI), tax-exempt interest, and half of your SS benefit.
The rules for 2026:
Note: these are federal thresholds only. Some states also tax SS benefits; others exempt them entirely.
This calculator uses 2026 provisional income thresholds as established by the IRS. It estimates the taxable portion of SS benefits only β it does not calculate your full tax liability. Consult a tax professional for your actual tax return.