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Taxable withdrawals from a traditional IRA generally count as income when the IRS calculates whether your Social Security benefits are taxable. Qualified Roth IRA withdrawals generally do not, because they are excluded from gross income. The difference can affect the calculation, but the result depends on your filing status, benefits, and other income—not on the IRA withdrawal alone.
How IRA withdrawals affect Social Security taxation
The IRS generally tests whether Social Security benefits are taxable by adding one-half of the benefits to other income, including tax-exempt interest, and comparing the total with a filing-status-based base amount. A taxable traditional IRA distribution is generally part of that other income. A qualified Roth IRA distribution generally is not.
This is a federal income-tax calculation. The IRS’s Publication 915 (2025) covers Social Security and Social Security Equivalent Benefit amounts from Tier 1 railroad retirement. State tax treatment is a separate question.
What counts as income from each type of IRA?
Traditional IRA distributions
Traditional IRA distributions included in income are generally taxed as ordinary income. But not every dollar withdrawn is necessarily taxable: if you made nondeductible contributions, part of a distribution may be tax-free because it represents your after-tax basis. The taxable portion, rather than automatically the full withdrawal, is the amount relevant to the income calculation.
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Roth IRA distributions
Qualified Roth IRA distributions generally are not included in gross income, and returns of regular contributions generally are not included either. Roth earnings do not receive that treatment automatically: a distribution that does not meet the qualification rules may be taxable. See the IRS’s Publication 590-B (2025) for IRA distribution rules.
2025 federal base amounts and taxable benefit limits
For 2025 returns, the IRS base amount depends on filing status. These amounts are thresholds in the calculation, not deductions or guarantees that benefits below a given amount will be tax-free in every circumstance.
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| Filing status | 2025 base amount | Qualification |
|---|---|---|
| Single, head of household, or qualifying surviving spouse | $25,000 | IRS Publication 915 (2025) |
| Married filing jointly | $32,000 | IRS Publication 915 (2025) |
| Married filing separately | $25,000 | Only if the spouses lived apart for all of 2025; IRS Publication 915 (2025) |
| Married filing separately | $0 | If the taxpayer lived with a spouse at any time during 2025; IRS Publication 915 (2025) |
Depending on the calculation, up to 50% of benefits may be included in taxable income, or up to 85% in specified higher-income situations. Those percentages are the maximum share of benefits that may be taxable—not tax rates. The taxable amount is included in income and taxed under the applicable income-tax rules.
How to estimate whether a withdrawal may change the result
- Identify the taxable amount of the IRA distribution. Use the taxable portion of a traditional IRA distribution after accounting for any nondeductible basis. For a Roth IRA, determine whether the distribution is qualified or is a return of regular contributions; do not assume earnings are tax-free without meeting the rules.
- Add one-half of Social Security benefits to other income. Include the taxable IRA amount and other relevant income, as well as tax-exempt interest. The IRS’s Publication 915 provides the detailed worksheet.
- Apply the base amount for your filing status. If the combined amount exceeds the applicable base amount, some benefits may be taxable. Use the publication’s detailed worksheet to calculate the amount rather than treating the threshold as a simple tax cliff or applying 50% or 85% as a tax rate.
- For a joint return, include both spouses’ figures. Combine both spouses’ income and benefits even if only one spouse receives Social Security.
There is no universal “safe” IRA withdrawal amount: the calculation changes with benefits, all relevant income, tax-exempt interest, filing status, and how much of the distribution is taxable.
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When a special IRA worksheet may be needed
If you made traditional IRA contributions and you or your spouse were covered by a workplace retirement plan, the deduction and Social Security calculations may require special worksheets in Appendix B of IRS Publication 590-A, as directed by the IRS Social Security Income FAQ. Follow the worksheet instructions for your circumstances rather than relying only on the quick check.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where the benefit amount appears on your return
On Form 1040 or 1040-SR, net Social Security benefits are reported on line 6a and the taxable amount on line 6b. Whether some benefits are taxable does not, by itself, determine whether you must file a return. For IRS publication revision dates, consult the IRS forms, instructions, and publications index.
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