At the federal level, your Social Security benefits start becoming taxable once your combined income passes $25,000 as a single filer or $32,000 as a married couple filing jointly. That is the short answer to how much you can earn before Social Security is taxed, but the number that matters is not your paycheck or your benefit alone — it is a specific figure the IRS calls combined income. Below the threshold, none of your benefits are taxed. Above it, a portion gets added to your taxable income and taxed at your regular rate.
What Counts as Combined Income
Combined income (sometimes called provisional income) has three parts added together: your adjusted gross income, any tax-exempt interest, and half of your Social Security benefits for the year.1Social Security Administration. Must I Pay Taxes on Social Security Benefits Adjusted gross income pulls in wages, self-employment earnings, pension distributions, interest, dividends, capital gains, and most other taxable income.
Two pieces catch retirees off guard. Tax-exempt interest, such as earnings from municipal bonds, is included even though it is not taxed on its own, so a large muni portfolio can push you over the line. And only half of your benefits go into the formula, which usually makes the total lower than people expect. The IRS lays out the full calculation in Publication 915.2Internal Revenue Service. Publication 915 – Social Security and Equivalent Railroad Retirement Benefits
Supplemental Security Income is a separate program and never enters this calculation. If SSI is the only payment you receive from the Social Security Administration, none of it is taxable.3Internal Revenue Service. Social Security Income
The Two Tiers of Taxable Benefits
Federal law sets two tiers based on filing status and combined income. Crossing a tier does not mean your whole benefit is taxed. It means a portion of it gets added to your other taxable income.
Single, Head of Household, or Qualifying Surviving Spouse
- Below $25,000: none of your benefits are taxable.
- $25,000 to $34,000: up to 50 percent of your benefits may be taxable.
- Above $34,000: up to 85 percent of your benefits may be taxable.
Married Filing Jointly
- Below $32,000: none of your benefits are taxable.
- $32,000 to $44,000: up to 50 percent of your benefits may be taxable.
- Above $44,000: up to 85 percent of your benefits may be taxable.
The joint thresholds apply to the couple’s combined income together, not to each spouse separately.1Social Security Administration. Must I Pay Taxes on Social Security Benefits All of these base amounts come from 26 U.S.C. § 86, and they are written into the statute as fixed dollar figures with no inflation adjustment.4Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits They have not moved since 1993, so as wages, pensions, and investment returns grow, a larger share of retirees crosses them each year.
The 50 percent and 85 percent numbers are ceilings, not flat rates. The actual taxable amount depends on how far your combined income runs past each threshold. The Publication 915 worksheet takes 50 percent of the amount between the first and second thresholds, adds 35 percent of the amount above the second threshold, and compares that to 85 percent of your total benefits — you pay tax on the smaller of the two.2Internal Revenue Service. Publication 915 – Social Security and Equivalent Railroad Retirement Benefits No matter how high your income goes, at least 15 percent of your benefits stay tax-free.
Married Filing Separately
If you are married, file separately, and lived with your spouse at any point during the year, your base amount is zero. That effectively makes up to 85 percent of your benefits taxable at any income level.4Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits If you filed separately but lived apart from your spouse the entire year, you use the single filer’s $25,000 base.
The New Senior Deduction Through 2028
The One, Big, Beautiful Bill Act, signed on July 4, 2025, created a temporary additional standard deduction for taxpayers 65 and older. For tax years 2025 through 2028, qualifying seniors can deduct up to $6,000, or $12,000 for a married couple where both spouses are 65 or older.5Internal Revenue Service. One, Big, Beautiful Bill Act – Tax Deductions for Working Americans and Seniors
The deduction does not raise the combined-income thresholds. It reduces your taxable income after the benefit-taxation math is done, which lowers the actual tax you owe. Key rules:
- You must turn 65 by December 31 of the tax year.
- The deduction phases out starting at $75,000 of modified adjusted gross income for single filers and $150,000 for joint filers.
- Married taxpayers must file jointly to claim it.
- You can take it whether you itemize or use the standard deduction.
For retirees whose benefits are only partially taxable, this deduction can wipe out the federal tax on those benefits entirely.5Internal Revenue Service. One, Big, Beautiful Bill Act – Tax Deductions for Working Americans and Seniors
State Taxes on Benefits
Federal thresholds are only half the picture. Most states either have no income tax or fully exempt Social Security benefits. As of 2026, eight states still tax them to some degree: Colorado, Connecticut, Minnesota, Montana, New Mexico, Rhode Island, Utah, and Vermont. Each sets its own exemptions and income cutoffs, so what you owe varies widely. West Virginia fully phased out its tax on Social Security benefits beginning in 2026. If you live in one of the eight, check your state revenue department for current rules.
Ways to Keep Combined Income Down
Because combined income is what triggers the tax, the direct way to lower your bill is to lower the numbers feeding into it.
Draw From a Roth
Qualified Roth IRA distributions are not part of adjusted gross income and do not count toward combined income. Pulling retirement money from a Roth rather than a traditional IRA or 401(k) can keep you under the thresholds. The catch: converting traditional savings to a Roth creates taxable income in the year of the conversion, which can push more of your benefits into the taxable zone that year.
Time Large Income Events
Selling an appreciated investment, taking a large pension distribution, or doing a Roth conversion in the same year you start collecting Social Security can spike your combined income. Spreading those events across multiple tax years can keep each year in the lower tier, or under the first threshold entirely.
Watch Your Municipal Bond Interest
Muni bond interest is tax-free by itself but still counts in the combined-income formula. If you are near a threshold, a sizeable muni portfolio can be the difference between paying no tax on your benefits and paying tax on up to 50 percent of them.
Don’t Confuse This With the Earnings Test
The tax on benefits and the Social Security earnings test are two separate rules that get mixed up all the time. The earnings test applies only if you collect benefits before full retirement age and keep working — it temporarily withholds part of your monthly check based on your wages. The tax on benefits applies at any age and simply determines how much of your benefit shows up as taxable income on your return.
For 2026, the earnings test works like this:
- Under full retirement age all year: benefits reduced by $1 for every $2 earned above $24,480.
- The year you reach full retirement age: benefits reduced by $1 for every $3 earned above $65,160, counting only earnings in the months before you hit full retirement age.
- Full retirement age and beyond: no earnings limit at all.
Withheld benefits are not lost. Once you reach full retirement age, the Social Security Administration recalculates your monthly payment to credit back the withheld months.6Social Security Administration. Receiving Benefits While Working But the wages you earn along the way still feed into combined income, so working can pull you across the tax thresholds even when it does not reduce your check.