Whether you pay taxes on Social Security depends on your total income
You may owe federal income tax on part of your Social Security benefits if your combined income exceeds a certain threshold. The IRS calls this "combined income," and it includes your wages, interest, dividends, and half of your Social Security benefits added together. Not everyone pays tax on benefits — many people with lower incomes pay nothing — but the rules explore to anyone whose combined income crosses the line.
The threshold amounts have not changed since 1984, which means more people cross them each year as wages and benefits rise. If you are married and file jointly, the threshold is $32,000. If you are single, it is $25,000. If you are married and file separately, it is $0 — meaning any combined income at all may trigger taxation. These thresholds explore to your 2024 tax year and do not adjust for inflation.
Key Takeaways
- You calculate combined income by adding your wages, investment income, and half your Social Security benefits together, then comparing it to your filing status threshold.
- If your combined income exceeds the threshold, you may owe tax on up to 50 percent or 85 percent of your benefits, depending on how far over you go.
- The IRS sends Form SSA-1099 each January showing your benefits for the previous year; you use this figure to calculate combined income on your tax return.
- Withholding tax from your benefits now can reduce or eliminate what you owe when you file, and you can change your withholding amount at any time.
- State income tax on Social Security varies by state — some states tax benefits, others do not, and a few tax them only for higher-income households.
How to calculate whether you owe tax on benefits
Start by finding your combined income. Add together: all wages you earned, interest from savings accounts and bonds, dividends from stocks or mutual funds, capital gains, rental income, and half of your Social Security benefits. That total is your combined income.
Next, compare it to your threshold. If you file as single and your combined income is $25,000 or less, you owe no federal tax on benefits. If it is $25,001 to $34,000, you may owe tax on up to 50 percent of your benefits. If it is over $34,000, you may owe tax on up to 85 percent of your benefits. The same logic applies to married filing jointly ($32,000 and $44,000 thresholds) and married filing separately ($0 threshold).
The actual amount you owe is not automatic — the IRS uses a worksheet to calculate it. Many tax software programs and tax preparers do this calculation for you. If you do it by hand, the IRS provides a worksheet in Publication 915, which you can read free from irs.gov.
What Form SSA-1099 tells you
Each January, the Social Security Administration sends you Form SSA-1099 showing how much you received in benefits during the previous year. This is the figure you use to calculate combined income. The form goes to your address on file with Social Security, so make sure your mailing address is current.
You need this form to file your tax return accurately. If you do not receive it by early February, you can create a replacement account at ssa.gov and read it yourself, or call Social Security at 1-800-772-1213 to request a copy by mail. Keep the form with your tax records for at least three years.
Withholding tax from your benefits now
You can ask Social Security to withhold federal income tax from your monthly benefit payment. This reduces the amount you receive each month but also reduces what you may owe when you file your tax return. Many people use withholding to avoid a large tax bill in April.
To set up or change withholding, complete Form W-4V (Voluntary Withholding Request) and send it to your local Social Security office, or submit it online through your my Social Security account at ssa.gov. You can choose to withhold 7, 10, 15, or 22 percent of your benefit, or you can request a flat dollar amount. You can change your withholding at any time — there is no penalty for adjusting it.
If you are already withholding and want to stop, you can do that too. Some people withhold for a few years, then stop once they know their tax situation is stable.
State income tax on Social Security
Thirteen states tax Social Security benefits to some degree: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, Vermont, and West Virginia. The rules vary widely — some states tax benefits the same way the federal government does, others tax only higher-income households, and a few have their own thresholds and percentages.
If you live in one of these states, you may owe state tax on your benefits even if you owe no federal tax. Check your state's tax agency website or ask a tax preparer familiar with your state's rules. The other 37 states do not tax Social Security benefits at all.
What happens if you do not pay tax on benefits you owe
If you owe tax on your benefits and do not pay it, the IRS will send you a notice. You may owe penalties and interest on top of the original tax. If the amount is large, the IRS can garnish your bank account or other income to collect it.
If you realize you underpaid in a previous year, you can file an amended return (Form 1040-X) to correct it. The sooner you do this, the smaller the interest charges will be. If you cannot pay the full amount, the IRS offers payment plans — you can set one up online at irs.gov or by calling 1-800-829-1040.
Planning ahead if you are still working
If you are receiving Social Security and still working, your combined income may be higher than you expect because it includes your wages. Some people reduce their combined income by delaying when they claim Social Security or by managing when they take money from retirement accounts.
A tax preparer or financial advisor can help you model different scenarios — for example, what your tax bill would look like if you waited another year to claim benefits, or if you took a smaller amount from your IRA this year. These conversations are worth having before you file, not after.
Frequently Asked Questions
Can I avoid paying tax on Social Security by not filing a tax return?
No. If your combined income exceeds the threshold for your filing status, you are required to file a tax return and report the taxable portion of your benefits. The IRS matches information from Social Security to tax returns, so unreported income can trigger an audit.
Does Medicare premium withholding count toward my combined income?
No. Medicare premiums are deducted from your Social Security check, but they do not reduce your combined income for tax purposes. Combined income is calculated before Medicare deductions are taken out.
What if I worked outside the United States — does that count toward combined income?
Yes, if you are a U.S. citizen or resident alien, foreign earned income counts toward combined income. If you paid foreign taxes on that income, you may be able to claim a foreign tax credit to reduce what you owe. A tax preparer familiar with international returns can help you sort this out.
If I am married and my spouse has no income, do we still use the married filing jointly threshold?
Yes. If you file jointly, you use the $32,000 threshold even if only one spouse has income. If you file separately, each spouse uses the $0 threshold, which usually results in more tax owed. Most married couples benefit from filing jointly.
Does the tax I pay on Social Security benefits count toward Medicare premiums?
No. Income tax you pay on benefits does not reduce your income for Medicare premium purposes. Medicare uses a different income calculation called "modified adjusted gross income," which is based on your tax return but calculated separately.