Social Security Taxation Calculator
How much of my Social Security benefit is taxable? Every piece below can be linked to, so it opens in a window on your reader's screen, current as of the record. No form to fill in.
2026 law · Reviewed September 5, 2026 · The full page, with methodology and sources · the terms · All tools
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The year's benefit, all other income, and the filing status in; the taxable share of the benefit out, with the thresholds drawn. In a frame it carries no cookies, no tracking, and a visible link back to the methodology. Your site has to allow frames; most do. The link that opens it in a small window is on the professionals page.
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- In plain words.
- Social Security is tax-free at low incomes and up to 85 percent taxable at higher ones. The test uses your other income plus half your benefit, against thresholds that have not changed in decades. This tool takes your benefit and your other income and shows how much of the benefit counts as taxable income, and how much more other income you could have before the next threshold.
- Why it matters.
- It explains a surprise many retirees meet: a modest IRA withdrawal raises the tax bill by more than its bracket suggests, because it also pulls more of the benefit into income.
- An example.
- A single person with $30,000 of Social Security and $60,000 of other income has $25,500 of the benefit taxed, the 85 percent maximum.
- Where it stops.
- This is the federal rule only; states differ, and Illinois does not tax Social Security at all. It does not compute the tax itself, only the taxable amount.
The facts
Six quotable sentences from section 86 of the Internal Revenue Code.
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- Whether a Social Security benefit is taxed depends on provisional income: adjusted gross income without the benefit, plus tax-exempt interest, plus half the benefit.
- Nothing is taxable below a base amount of $25,000 on a single return and $32,000 on a joint return. Up to half is taxable between the base and an adjusted base of $34,000 single and $44,000 joint. Up to 85 percent is taxable above that.
- The thresholds were fixed in 1983 (the base) and 1993 (the adjusted base) and are not indexed to inflation, so each year more retirees cross them without any change in real income.
- A married couple with $36,000 of benefits and $40,000 of other income has provisional income of $58,000; $17,900, 49.7% of the benefit, is taxable.
- Eighty-five percent is the ceiling. No level of income makes more than 85 percent of a benefit taxable.
- Inside the two zones, each extra dollar of other income drags 50 cents, then 85 cents, of benefit into taxable income, so the marginal tax rate on that dollar can be 1.5 or 1.85 times the bracket rate.
The thresholds
The two thresholds for each filing status and the share of the benefit each zone can tax.
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| Zone | Single | Married filing jointly | Share of benefit taxable |
|---|---|---|---|
| Provisional income at or below the base | $25,000 | $32,000 | None |
| Between the base and the adjusted base | $25,000 to $34,000 | $32,000 to $44,000 | Up to 50 percent |
| Above the adjusted base | Over $34,000 | Over $44,000 | Up to 85 percent |
Cite and link.
The clean address, a citation generated from the record so it can never carry a stale review date, and an address for every section so you can point a reader at the exact table or method.
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- Link
- https://consideratecapital.com/tools/social-security-taxation-calculator
- Citation
- Considerate Capital, "Social Security Taxation Calculator," reviewed September 5, 2026, https://consideratecapital.com/tools/social-security-taxation-calculator.
Link to a section
- The calculator https://consideratecapital.com/tools/social-security-taxation-calculator#calculator
- The facts https://consideratecapital.com/tools/social-security-taxation-calculator#facts
- The thresholds https://consideratecapital.com/tools/social-security-taxation-calculator#key-numbers
- How the rule works https://consideratecapital.com/tools/social-security-taxation-calculator#how-it-works
- Methodology https://consideratecapital.com/tools/social-security-taxation-calculator#methodology
- Sources https://consideratecapital.com/tools/social-security-taxation-calculator#sources
- Revision history https://consideratecapital.com/tools/social-security-taxation-calculator#revision-history
Everything here reads from one reviewed record, so a copied piece carries its year and its review date. When the law moves, the embed updates by itself; a copied table or chart keeps the year in its caption. Corrections are welcome through the contact page.