Some people who get Social Security must pay federal income taxes on their benefits. However, no one pays taxes on more than 85% percent of their Social Security benefits.
You must pay taxes on your benefits if you file a federal tax return as an “individual” and your “combined income” exceeds $25,000. If you file a joint return, you must pay taxes if you and your spouse have “combined income” of more than $32,000. If you are married and file a separate return, you probably will have to pay taxes on your benefits.
Retirement Benefits: Income Taxes and Your Social Security Benefits for more information.
NOTE: “Combined income” includes your adjusted gross income, tax-exempt interest income and half of your Social Security benefits.