Are Social Security Benefits Taxable? A Plain-English Guide
Depending on your income, up to 85 percent of Social Security benefits may be subject to federal income tax. Learn how combined income works and how to plan for it.
The short version
- Some people pay federal income tax on part of their benefits, depending on combined income.
- Combined income equals adjusted gross income plus nontaxable interest plus half of your benefits.
- You can request voluntary federal tax withholding from your benefits.
In this guide
Many people are surprised to learn that Social Security benefits can be subject to federal income tax. Whether you owe tax on your benefits depends on your total income. Understanding how the calculation works can help you plan and avoid surprises at tax time.
The key concept: combined income
The IRS uses a figure often called combined income (or provisional income) to determine whether benefits are taxable:
Combined income = adjusted gross income + nontaxable interest + half of your Social Security benefits
Federal thresholds
If you file as an individual:
- Combined income below $25,000: benefits generally are not taxable.
- $25,000 to $34,000: up to 50 percent of benefits may be taxable.
- Above $34,000: up to 85 percent of benefits may be taxable.
If you file a joint return:
- Combined income below $32,000: benefits generally are not taxable.
- $32,000 to $44,000: up to 50 percent may be taxable.
- Above $44,000: up to 85 percent may be taxable.
If you are married and file separately and lived with your spouse during the year, your benefits are likely taxable.
These thresholds are not adjusted for inflation, so more people find part of their benefits taxable over time.
What "up to 85 percent" means
These percentages refer to the share of your benefits that is included in taxable income, not the tax rate. You will never pay tax on more than 85 percent of your benefits, and the actual tax depends on your tax bracket.
The new senior deduction does not change this formula
Tax legislation enacted in 2025 created an additional deduction of up to $6,000 for people 65 and older for tax years 2025 through 2028. It reduces taxable income for many older taxpayers, but it does not change how the taxable portion of Social Security benefits is calculated.
Your SSA-1099
Each January, Social Security sends Form SSA-1099, which shows the total benefits paid to you in the previous year. You will need it to file your tax return. You can also download it from your my Social Security account.
Withholding taxes from your benefits
If you expect to owe tax on your benefits, you can ask Social Security to withhold federal income tax by submitting Form W-4V. You can choose withholding of 7, 10, 12 or 22 percent of your monthly benefit. Alternatively, you can make quarterly estimated tax payments.
State taxes
Most states do not tax Social Security benefits, but a small number do, often with exemptions for lower- and middle-income residents. Check your state's tax agency for current rules.
Planning ideas to discuss with a tax professional
- The timing and size of withdrawals from traditional IRAs and 401(k)s affect your combined income.
- Qualified distributions from Roth accounts generally do not count toward combined income.
- Large one-time income events, such as selling property, can increase how much of your benefits are taxed that year.
Free tax help
The IRS's Tax Counseling for the Elderly (TCE) and Volunteer Income Tax Assistance (VITA) programs offer free tax preparation for eligible taxpayers, and AARP Foundation Tax-Aide also provides free help.
Terrameritavi is an independent publication and is not affiliated with the IRS or the Social Security Administration. This article is general information, not tax advice. Consult a qualified tax professional for your situation.
