Retirement Taxes in Idaho (2026)
Tax-friendly. Income tax: flat 5.3%. Social Security: not taxed. Retirement account withdrawals: fully taxable, though from 2026 Idaho also allows the federal $6,000 senior deduction.
Seeded with roughly 12% — about 10% effective federal plus 1.5%, the Idaho tax on $40,000 of IRA withdrawals at 65 under 2026 rules. Change it to your own rate.
What Idaho taxes in retirement
| State income tax | Flat 5.3% |
|---|---|
| Social Security | Not taxed |
| 401(k) and IRA withdrawals | Fully taxable, though from 2026 Idaho also allows the federal $6,000 senior deduction |
| Pensions | Taxable; a deduction exists for certain police, fire and federal pensions at 65+ |
| Military retirement pay | Counts toward the retirement benefits deduction from 62 (or any age if disabled), capped near the maximum Social Security benefit and reduced by Social Security received |
| Estate or inheritance tax | None |
| Average combined sales tax | 6.03% |
| Average effective property tax | 0.5% of home value |
Idaho exempts Social Security and taxes everything else at a single flat rate with no general retirement exclusion. Low property taxes and a low sales tax keep the overall burden moderate.
What the state tax actually costs you
Take a $500,000 balance and withdraw $2,500 a month, rising with inflation. At an effective federal rate of 10% alone, the money lasts about 18.8 years. Add Idaho's 1.5% and it lasts about 18.2 years — a difference of roughly 0.6 years.
That is the honest scale of it. State income tax is real money, but for most retirees it changes the answer by months or a couple of years, not decades — and it is usually smaller than the effect of housing costs, which is why a move made purely for income tax often fails to pay for itself.
The taxes that are not income tax
Retirees feel sales and property tax more than working-age households do, because a larger share of a fixed income goes on spending and on staying in a house that is already owned. Idaho charges an average combined sales tax of about 6.03% and levies an average effective property tax of about 0.5% of a home's value, which is well below the national average.
There is no state estate or inheritance tax, so only the federal estate tax applies and its exemption is high enough that almost no estate owes it.
How long $500,000 lasts here
Take a single 67-year-old with $500,000 in an IRA, the average Social Security check and $4,000 a month of spending. In Idaho that money runs out at 93 and 9 months, 3 months sooner than in a state with no income tax. Counting Idaho's prices as well, it runs out at 98 and 7 months. How long $500,000 lasts in every state compares all 51.
Should you move for the tax?
Compare the whole burden rather than one line of it. States without an income tax raise the money elsewhere — Texas and New Hampshire through property tax, Tennessee and Washington through sales tax — so the saving is often smaller than the headline suggests. Run your own numbers in the calculator above, then look at what the same house costs in each state, what insurance costs, and how far you would be from family and from the specialists you already use.
Establishing residency is also a formal exercise, not a preference: high-tax states audit departing retirees on days present, driver's licence, voter registration, where the primary home is, and where a doctor and a dentist are. Half-measures lose.
Frequently asked questions
Does Idaho tax Social Security benefits?
Not taxed. Your benefit may still be taxable federally once provisional income crosses the limits — see is Social Security taxable.
Does Idaho tax 401(k) and IRA withdrawals?
Fully taxable, though from 2026 Idaho also allows the federal $6,000 senior deduction. Pensions are treated separately — Taxable; a deduction exists for certain police, fire and federal pensions at 65+.
Does Idaho tax military retirement?
Counts toward the retirement benefits deduction from 62 (or any age if disabled), capped near the maximum Social Security benefit and reduced by Social Security received. See which states do not tax military retirement.
Is Idaho a good state to retire in for taxes?
Tax-friendly on income tax. A 65-year-old single filer pays about 1.5% in state income tax on $40,000 a year of IRA withdrawals under the 2026 rules. Average combined sales tax is about 6.03% and effective property tax about 0.5% of home value. Estate or inheritance tax: none.
Does Idaho have an estate or inheritance tax?
No. Idaho levies neither an estate tax nor an inheritance tax, so only the federal estate tax applies, and its exemption is high enough that very few estates owe anything.
Other tax-friendly states
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SavingsLast calculators are educational estimates. They assume a constant average return and steady inflation; real markets are volatile and sequence-of-returns risk can shorten how long money lasts. Nothing here is financial, investment, tax, or legal advice. Consult a qualified professional before making decisions.
Reviewed for the 2026 tax year. Several states are part-way through scheduled rate cuts or phase-outs, and thresholds are often indexed annually — confirm current figures with the Idaho tax agency (listed at taxadmin.org) or a tax professional before acting. The effective rate is a planning figure, not a filing figure.
Printed from https://savingslast.com/retirement-taxes-in-idaho/ on . The figures reflect the inputs shown and the rules as published on that date.