Updated September 5, 2026. Quick answer: No. Idaho deducts all federally taxable Social Security and railroad retirement benefits back out of state income.
Confidence note: high. This page is scoped to Social Security taxation specifically. For the state’s full retirement-tax picture (pensions, tax rates, estate and probate), see how Idaho taxes retirement income generally.
How Idaho taxes Social Security benefits
| State personal income tax | Yes |
|---|---|
| Social Security treatment | Not taxed |
| How it works | Idaho Code § 63-3022(l) allows a deduction for “any amounts included in gross income under the provisions of section 86 of the Internal Revenue Code relating to certain social security and railroad benefits,” and the Idaho State Tax Commission confirms benefits taxable on the federal return “aren’t taxable in Idaho.” |
| Income threshold / phase-out | No income threshold or age test; full exemption at every income level. |
Coordinate this with your overall retirement plan
An adviser can help weigh how much of your Social Security income actually reaches you after state tax, whether the timing of other withdrawals affects that, and how it fits the rest of your plan, but that does not replace the numbers in your own return.
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Statute and sources
Governing citation: Idaho Code § 63-3022(l).
Read September 5, 2026.
Related: how Idaho taxes retirement income generally · does Idaho tax Roth conversions? · Roth conversion taxes, all 51 jurisdictions.
General information drawn from each state’s own published statutes and revenue-department guidance, not legal, tax or financial advice. Figures and exemption amounts are current as of the date in the quick answer, are set by state law, and can change by future legislation; any pending bill named on this page is not yet law. This page cannot see your own return, which governs. We are not a law firm, a tax adviser, or a fiduciary, and this is not personalized advice.