How Much of Your Social Security Is Taxable?
By Hans Goldstein, founder, Retirement Literacy Foundation · Updated
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The combined-income thresholds
| Combined income (single) | Combined income (married filing jointly) | Max % of benefit taxable |
|---|---|---|
| Under $25,000 | Under $32,000 | 0% (none taxed) |
| $25,000 to $34,000 | $32,000 to $44,000 | Up to 50% |
| Over $34,000 | Over $44,000 | Up to 85% |
These federal thresholds are set by statute and are not indexed for inflation, so more retirees cross them each year. The percentage is the maximum share of your benefit that's taxable, not a tax rate. Your actual tax depends on your ordinary income bracket.
What counts as "combined income"
The IRS doesn't look at your benefit alone. It looks at a special figure sometimes called provisional income. It's built from three pieces: your adjusted gross income (wages, IRA/401(k) withdrawals, pensions, dividends), plus any nontaxable interest (like municipal-bond interest), plus one-half of your annual Social Security benefit. Add those together and compare the total to the brackets above. That's why two people receiving the same monthly check can owe very different amounts. The difference is their other income.
Levers that can lower the taxable share
Because the tax is driven by the income around your benefit, you have more control than most retirees realize. Roth withdrawals don't count toward combined income, so income drawn from a Roth can fund your lifestyle without pushing your benefit into a higher taxable band. Timing matters too: taking IRA withdrawals or doing Roth conversions in lower-income years, and spreading out large one-time withdrawals, can keep you under a threshold. You don't need to avoid income. The aim is to arrange it so less of your Social Security gets pulled into the 85% band.
Check your own number
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| Provisional income | $0 |
| Which tier you land in | n/a |
| Share of benefit taxed | 0% |
We will email you a written copy showing how the math worked, what would change your tier, and the thresholds for next year. Free, and you can keep it or forward it to whoever does your taxes.
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These numbers change every year
The IRMAA brackets, the standard deduction and the senior deduction are all adjusted annually, and the 2027 figures are published late in 2026. The one exception is the Social Security taxation thresholds, which have not moved since 1983 and are not expected to.
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See how much of your benefit is taxable
Enter your income and benefit amount, and our free calculator shows your combined income, which bracket you land in, and how much of your Social Security is taxable.
Check my Social Security tax →Frequently asked questions
How much of my Social Security is taxable?
Up to 85% of your benefit can be subject to federal income tax, based on your combined income. Below $25,000 single / $32,000 married, none is taxed. In the middle band, up to 50% is taxable. Above $34,000 single / $44,000 married, up to 85% is taxable.
What counts as combined income?
Combined income equals your adjusted gross income, plus nontaxable interest (like municipal-bond interest), plus one-half of your annual Social Security benefit. The IRS compares that total to the threshold brackets to decide how much of your benefit is taxable.
How can I reduce the tax on my Social Security?
Since the tax is driven by your other income, managing it helps. Drawing from Roth accounts (which don't count toward combined income), timing IRA withdrawals or Roth conversions in lower-income years, and spreading out large withdrawals can all keep more of your benefit out of the 85% band.
Want to run these numbers for your own situation?
The Retirement Literacy Foundation runs free retirement classes across Southern California on Social Security timing, taxes in retirement, and how to turn savings into income. No products are sold at our classes.
The Retirement Literacy Foundation is a 501(c)(3) non-profit. This guide is general financial education, not individualized investment, tax, or insurance advice. Thresholds are set by federal statute and figures are illustrative; your situation may differ. Consider speaking with a licensed professional before making decisions.
Hans Goldstein
Founder & Executive Director · Retirement Literacy Foundation, a 501(c)(3) non-profit
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Worked examples
Worked examples: taxable share of Social Security
| Filer | Social Security | Other income | Combined income | Taxable Social Security |
|---|---|---|---|---|
| Married | $40,000 | $10,000 | $30,000 | $0 (0%) |
| Married | $40,000 | $30,000 | $50,000 | $11,100 (28%) |
| Married | $40,000 | $60,000 | $80,000 | $34,000 (85%, the cap) |
| Single | $24,000 | $10,000 | $22,000 | $0 (0%) |
| Single | $24,000 | $20,000 | $32,000 | $3,500 (15%) |
| Single | $24,000 | $40,000 | $52,000 | $19,800 (82%) |
Calculated by the Retirement Literacy Foundation with the IRS Publication 915 worksheet method (no tax-exempt interest assumed), checked October 3, 2026. Combined income = other income + half of Social Security.
People also ask
What is the new $6000 tax deduction for seniors?
For tax years 2025 through 2028, each taxpayer 65 or older can deduct an extra $6,000 ($12,000 for a married couple where both qualify), whether or not they itemize. It phases out by 6% of modified AGI above $75,000 single or $150,000 joint. It does not change how much of Social Security is taxable; it lowers the income the tax is figured on.
What is the 50% rule for Social Security?
It usually refers to the spousal benefit: a spouse can receive up to 50% of the worker's full retirement age benefit if they claim at their own full retirement age. Claiming the spousal benefit earlier reduces it. For the tax on benefits, 50% is also the maximum share taxed in the middle combined-income band.
Related
- What is provisional income?
- What tax rate applies to Social Security
- The SSA-1099 explained
- IRMAA calculator
Sources: IRS Publication 915; SSA 2026 COLA fact sheet. Checked October 3, 2026.