Whether you pay tax on Social Security depends on your other income
You may owe federal income tax on part of your Social Security benefits if you have other income above a certain threshold. The IRS uses a formula based on your combined income — not just your Social Security alone — to decide how much, if any, of your benefits are taxable. Most people who receive only Social Security pay no federal tax on it. But if you also have wages, pensions, investment income, or other earnings, the calculation changes.
The threshold amounts have not changed since 1984, which means more people cross them each year as wages and benefits rise. Understanding how the IRS counts your income is the first step to knowing what you owe.
Key Takeaways
- The IRS taxes Social Security based on your combined income, which includes half your Social Security benefits plus all other income sources.
- If your combined income is below $25,000 (single) or $32,000 (married filing jointly), you owe no federal tax on your benefits.
- Between those thresholds and higher limits, up to 50 percent of your benefits may be taxable; above the higher limits, up to 85 percent may be taxable.
- Some states also tax Social Security benefits, though most do not; your state tax return instructions will tell you whether yours does.
- You can have taxes withheld from your Social Security payments or pay estimated tax quarterly to avoid owing a large amount at tax time.
How the IRS calculates whether your benefits are taxable
The IRS uses a two-step calculation. First, it adds up your combined income: your adjusted gross income (wages, pensions, interest, dividends, and other earnings) plus half of your Social Security benefits plus any tax-exempt interest (such as from municipal bonds). This combined income figure is what determines whether any of your benefits are taxable.
If your combined income falls below the first threshold, none of your benefits are taxable. If it exceeds the first threshold but stays below a second, higher threshold, up to 50 percent of your benefits above the first threshold are taxable. If your combined income exceeds the second threshold, up to 85 percent of your benefits may be taxable.
The thresholds are $25,000 for single filers and $32,000 for married couples filing jointly. For married people filing separately, the threshold is $0, meaning any combined income at all may trigger taxation. These amounts have remained the same since 1984 and do not adjust for inflation.
The two-tier tax brackets for Social Security
Understanding the two tiers helps you see why your tax bill might be higher than you expected. The first tier covers combined income from the first threshold up to a second threshold. The second tier covers combined income above that second threshold.
| Filing Status | First Threshold | Second Threshold | Tax Rate at First Tier | Tax Rate at Second Tier |
|---|---|---|---|---|
| Single | $25,000 | $34,000 | Up to 50% of benefits | Up to 85% of benefits |
| Married filing jointly | $32,000 | $44,000 | Up to 50% of benefits | Up to 85% of benefits |
| Married filing separately | $0 | $0 | Up to 50% of benefits | Up to 85% of benefits |
For example, a single person with $30,000 in combined income ($5,000 over the first threshold) would have up to $2,500 of their Social Security benefits subject to tax. If that same person's combined income were $40,000 ($6,000 over the second threshold), up to $5,100 of their benefits could be taxable — a much larger amount.
What counts as income for this calculation
The IRS includes almost all income sources in the combined income calculation. Wages from work count. Pensions, annuities, and distributions from retirement accounts (401(k), IRA, and similar plans) count. Interest and dividends count. Capital gains count. Rental income, self-employment income, and income from a business all count.
Tax-exempt interest — such as interest from municipal bonds — also counts for this purpose, even though it is not taxable as regular income. This is a common surprise for people who own municipal bonds and think they are reducing their tax burden.
What does not count: gifts, inheritances, life insurance proceeds, or the return of your own principal from investments. Supplemental Security Income (SSI) does not count either, though it is a separate program from Social Security.
State taxes on Social Security benefits
Most states do not tax Social Security benefits at all. However, a small number do: Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont currently tax some or all Social Security income. The rules vary by state — some tax only benefits above a certain income level, others tax all benefits, and some offer exemptions based on age or income.
If you live in one of these states, your state tax return instructions will explain how to report Social Security income. Some states follow the federal thresholds; others use different rules. Check your state's tax authority website or your state tax form instructions to see whether you owe state tax on your benefits.
How to avoid a large tax bill at the end of the year
If you know you will owe tax on your Social Security benefits, you have two main options: have taxes withheld from your benefits each month, or pay estimated tax quarterly.
To have taxes withheld, contact Social Security directly. You can request withholding by phone at 1-800-772-1213, by visiting your local Social Security office, or by completing Form W-4V (Voluntary Withholding Request). You choose the withholding amount — you can withhold 7, 10, 15, or 25 percent of your monthly benefit, or a flat dollar amount. Social Security will then send you a smaller check each month, with the difference going to the IRS.
If you prefer to pay estimated tax instead, you file Form 1040-ES with the IRS quarterly (in April, June, September, and January). This approach works better if your income varies month to month or if you have other income sources that do not withhold tax automatically.
What to do if you receive a notice from the IRS
If the IRS sends you a notice saying you owe tax on Social Security benefits, do not ignore it. The notice will explain what income the IRS counted and how much tax it says you owe. Review the notice carefully to make sure the income amounts are correct.
If the amounts are wrong — for example, if the IRS counted income you did not receive or missed a deduction you are may have access to to — you can respond to the notice with documentation. Keep copies of your Social Security benefit statements (Form SSA-1099), your 1099 forms from pensions or investments, and any other income records. If you are unsure how to respond, a tax professional or your local IRS office can help you.
If you owe the amount shown but cannot pay it all at once, the IRS offers payment plans. You can set up a plan by phone at 1-800-829-1040 or online at irs.gov.
Frequently Asked Questions
Do I have to report Social Security on my tax return if I do not owe tax on it?
You must report all Social Security income on your federal tax return, even if none of it is taxable. The IRS uses the information to verify that you reported the correct amount. You will receive Form SSA-1099 from Social Security showing your benefits; include this with your return.
What if I work and receive Social Security at the same time?
Your wages count as part of your combined income for the tax calculation. If you are under full retirement age and earn above a certain amount, Social Security will also reduce your monthly benefit — but that reduction does not affect the tax calculation. The tax is based on your combined income, which includes both your wages and your benefits.
Can I reduce my combined income to avoid taxes on Social Security?
You can lower your combined income by reducing other income sources — for example, by withdrawing less from retirement accounts or by timing capital gains sales. However, the first threshold ($25,000 for single filers) has not changed since 1984, so most people with any significant income will eventually cross it. A tax professional can help you plan withdrawals and income timing if this is a concern.
If I am married but file separately, why is the threshold $0?
The IRS treats married people filing separately as higher-risk for tax purposes and applies stricter rules. Filing separately almost always results in a larger combined tax bill than filing jointly. If you are married, filing jointly usually saves you money even if one spouse has substantial income.
Does the Medicare premium I pay come out of my Social Security check?
Yes, Medicare Part B and Part D premiums are deducted from your Social Security payment. However, these deductions do not reduce your taxable Social Security income. The IRS taxes the full benefit amount before the Medicare premium is subtracted.