Retire in Idaho: 2026 Tax & Cost of Living Guide
Flat 5.8% income tax, no Social Security or estate tax, very low property tax. Moderate tax-friendliness for retirees.
State income tax
Flat 5.80%
Social Security
Not taxed
Estate tax
None
Property tax
0.47%
How Idaho Taxes Retirement Income
- Social Security
- Not taxed
- Public pensions (state/federal)
- Taxed
- Private pensions
- Taxed
- 401(k) / IRA withdrawals
- Taxed
Exemption / exclusion
Limited exclusions for some public pensions (age 65+ or disabled)
What Would You Pay in State Income Tax?
Rough estimates at the top marginal rate (actual effective rate will be lower for most retirees due to brackets, exemptions, and standard deduction):
| Annual Retirement Income | Estimated State Tax | Effective Rate |
|---|---|---|
| $50,000 | $2,900 | 5.8% |
| $100,000 | $5,800 | 5.8% |
| $200,000 | $11,600 | 5.8% |
Capital Gains in Idaho
60% deduction for long-term capital gains on qualifying Idaho property
Top Cities for Retirees in Idaho
States With No Income Tax
Compare Against Other States
All 50 US States + DC
Ranked by tax-friendliness for retirees. Grouped by income-tax type.
Retirement Methodology Calculators
How much do the big names actually say you need? See each guru's assumed return and withdrawal rate, side by side with academic defaults.
FIRE Calculator
See how much you need to retire — in Idaho or anywhere else.
Safe Withdrawal Rate
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Tax rates and programs are subject to change. Data is current for 2024–2025. Always consult a qualified tax professional before making relocation decisions.