Social Security can be taxable, but many retirees owe nothing on it. Whether you do depends on your "provisional income": your other income plus half of your benefits. If that total is under $25,000 for a single filer or $32,000 for a married couple filing jointly, none of your benefits are taxed by the federal government; above those levels, up to 50% and then up to 85% of benefits can become taxable income.
Key takeaways
- Provisional income = adjusted gross income (not counting Social Security) + tax-exempt interest + 50% of your Social Security benefits.
- Single filers: under $25,000 means no tax on benefits; $25,000 to $34,000, up to 50% is taxable; over $34,000, up to 85%.
- Married filing jointly: the thresholds are $32,000 and $44,000.
- No more than 85% of your benefits is ever taxable, and the taxable part is taxed at your normal income tax rate, not at 85%.
- The thresholds are not adjusted for inflation, and SSI is never taxable.
The short answer: it depends on your other income
Federal law taxes a portion of benefits only for people whose total income goes above certain levels. Retirees who rely mostly on Social Security usually pay no federal income tax on it. Retirees with sizable pensions, IRA withdrawals, wages or investment income often do.
Two points cause a lot of confusion, so it is worth stating them plainly:
- "85% taxable" does not mean an 85% tax. It means up to 85% of your benefit is added to your taxable income. That amount is then taxed at your ordinary rate, such as 10%, 12% or 22%.
- The thresholds never rise. They are fixed in the law at $25,000 and $32,000 and are not indexed, while benefits rise with each cost-of-living adjustment. Over time, more retirees cross the line.
The test also applies to Social Security disability (SSDI) and survivor benefits. Supplemental Security Income (SSI) is never taxable.
How to calculate your provisional income
Provisional income, also called combined income, is a three-part sum:
- Your adjusted gross income, not counting Social Security. This includes wages, pension payments, taxable IRA and 401(k) withdrawals, interest, dividends and capital gains.
- Plus any tax-exempt interest, such as interest from municipal bonds. It is tax-free on its own, but it still counts in this test.
- Plus half of your Social Security benefits for the year.
Then compare the result with the thresholds for your filing status.
| Filing status | 0% of benefits taxable | Up to 50% taxable | Up to 85% taxable |
|---|---|---|---|
| Single, head of household | Under $25,000 | $25,000 to $34,000 | Over $34,000 |
| Married filing jointly | Under $32,000 | $32,000 to $44,000 | Over $44,000 |
| Married filing separately, lived with spouse | Up to 85% taxable from the first dollar | ||
Enter your benefits and other income to see how much of your Social Security is taxable.
Use the Social Security Tax CalculatorWorked examples
The examples below use round numbers to show the calculation. They follow the method in IRS Publication 915 in simplified form.
Example 1: single, mostly Social Security
A single retiree receives $24,000 a year in Social Security and has $8,000 of taxable interest and IRA withdrawals.
- Half of benefits: $12,000
- Provisional income: $8,000 + $12,000 = $20,000
That is under $25,000, so none of the benefits are taxable.
Example 2: single, in the 50% range
Now the same retiree takes $18,000 from an IRA instead of $8,000.
- Provisional income: $18,000 + $12,000 = $30,000
- Amount over $25,000: $5,000
- Half of that excess: $2,500
The taxable portion in this range is the smaller of half the excess or half the benefits ($12,000). So $2,500 of benefits is added to taxable income.
Example 3: married couple, in the 85% range
A married couple filing jointly receives $40,000 in combined Social Security and has $40,000 of pension and IRA income.
- Half of benefits: $20,000
- Provisional income: $40,000 + $20,000 = $60,000, which is above $44,000
The 85% formula has two pieces:
- 85% of the amount above $44,000: 85% of $16,000 = $13,600
- Plus the smaller of $6,000 or half of benefits ($20,000): $6,000
- Total: $13,600 + $6,000 = $19,600
Then compare with the cap of 85% of benefits: 85% of $40,000 = $34,000. The lower figure applies, so $19,600 of the couple's $40,000 in benefits is taxable, about 49%. The $6,000 figure is half the gap between the two married thresholds ($44,000 minus $32,000 = $12,000); for single filers it is $4,500, half of $34,000 minus $25,000.
| Example | Benefits | Provisional income | Taxable benefits |
|---|---|---|---|
| 1. Single | $24,000 | $20,000 | $0 |
| 2. Single | $24,000 | $30,000 | $2,500 |
| 3. Married filing jointly | $40,000 | $60,000 | $19,600 |
From taxable benefits to tax owed
The taxable portion of your benefits is only one line in your tax return. It is added to your other income, and then deductions come off before the tax brackets apply. For older taxpayers, those deductions are larger than for younger ones.
For tax year 2026, the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly. People 65 or older add $2,050 (single or head of household) or $1,650 per married person who is 65 or older.
In addition, a new senior deduction of $6,000 per person age 65 or older applies for tax years 2025 through 2028, whether or not you itemize. It phases out by 6% of modified AGI above $75,000 for single filers and $150,000 for joint filers. Married couples must file jointly to claim it. Despite some headlines, this deduction does not eliminate tax on Social Security; it lowers taxable income in general. Our guide to senior tax deductions for 2026 and 2027 covers it in detail.
Continuing Example 3 for 2026
Assume both spouses are over 65 and qualify for the full senior deduction.
- Income: $40,000 + $19,600 taxable benefits = $59,600
- Standard deduction: $32,200 + $1,650 + $1,650 = $35,500
- Senior deduction: $6,000 + $6,000 = $12,000
- Taxable income: $59,600 − $35,500 − $12,000 = $12,100
At 2026 rates, all of that falls in the 10% bracket (which runs to $24,800 for joint filers), for federal tax of about $1,210. Even though about half their benefits are counted as income, the couple's overall federal tax is modest.
For 2027, the standard deduction is projected to be $16,600 for single filers and $33,200 for joint filers, with the extra amount for 65 and older about $2,100 single and $1,700 per married person. Those figures are expected from the IRS in late 2026. The provisional-income thresholds stay the same.
To estimate your full federal return, try our senior tax calculator.
How to lower the tax on your benefits
Because provisional income drives the result, the most effective strategies reduce the income that counts. Some common approaches, which are worth discussing with a tax professional:
- Plan IRA withdrawals. Large one-time withdrawals can push you into the 85% range. Spreading them out can keep more of your benefits untaxed in a given year.
- Use qualified charitable distributions. From age 70½, sending money directly from an IRA to a charity counts toward required distributions and is left out of income. Our required minimum distributions guide explains the rules.
- Consider Roth accounts. Qualified Roth withdrawals are not part of adjusted gross income, so they do not add to provisional income.
- Remember municipal bond interest counts. It is tax-free on its own but still raises provisional income.
Higher income can also raise your Medicare premiums. Part B surcharges (IRMAA) are based on income from two years earlier, a separate test explained in our Part B premium and IRMAA guide.
State taxes and withholding
Federal tax is only part of the picture. For tax year 2026, eight states tax Social Security in some form: Colorado, Connecticut, Minnesota, Montana, New Mexico, Rhode Island, Utah and Vermont. Most of them offer exemptions or credits based on income, so many residents still pay nothing. West Virginia fully exempts benefits starting in tax year 2026. You can see the details in our guide to states that tax Social Security.
If you expect to owe federal tax on your benefits, you can ask Social Security to withhold a percentage of each payment for federal tax. The alternative is making quarterly estimated payments. Each January, you receive Form SSA-1099 showing the benefits you were paid in the prior year, which you use for this calculation.
Frequently asked questions
At what income is Social Security not taxed?
If your provisional income is under $25,000 as a single filer, or under $32,000 as a married couple filing jointly, none of your benefits are subject to federal income tax. Provisional income is your other income plus tax-exempt interest plus half of your benefits.
Do I pay 85% tax on my Social Security?
No. At most, 85% of your benefits can be counted as taxable income. That portion is then taxed at your regular rate. A retiree in the 12% bracket with $10,000 of taxable benefits would owe about $1,200 on them, not $8,500.
Does the new $6,000 senior deduction mean Social Security is tax-free?
No. The senior deduction of $6,000 per person 65 or older reduces taxable income for tax years 2025 to 2028, but it does not change the rules for taxing benefits. For many retirees, though, it lowers or eliminates the tax owed overall.
Will the 2027 COLA make more of my benefits taxable?
It can. The thresholds are not indexed to inflation, so as benefits rise each year, half of your benefits adds a little more to provisional income. People close to a threshold may see a small increase in taxable benefits.
Is SSI or SSDI taxable?
SSI is never taxable. SSDI follows the same provisional-income test as retirement benefits, so it is taxable only if your income is above the thresholds.
Sources
This guide is for general education and is not financial, tax or legal advice. Rules and amounts can change; confirm details with the Social Security Administration, the IRS or Medicare. Spotted an error? Let us know.