Idaho tax burden — broken down.
Idaho’s combined tax burden (income + property + sales) lands at 12.38% on our composite — ranking #18 of 51 jurisdictions. The top marginal individual income tax rate is 5.70%.
Idaho burden, broken into 3 components
| Component | Idaho rate | National median |
|---|---|---|
| Top marginal income | 5.70% | ~5.30% |
| Effective property | 0.69% | ~1.07% |
| State sales tax | 6.00% | ~5.50% |
| Combined composite | 12.38% | ~11.87% |
National medians from CalcFi’s 51-state composite. Top marginal is the headline single-filer rate, NOT the effective rate most households actually pay.
Retirement + Social Security in Idaho
Idaho taxes most retirement income (pensions, IRA / 401(k) distributions). Social Security benefits are NOT taxed by Idaho. Federal taxation of these income sources is unchanged regardless of state.
How Idaho compares
Of all 51 US jurisdictions ranked by combined burden composite, Idaho sits at #18. That places Idaho in the middle of the pack — burden is moderate without being a particular outlier in either direction. For the live cross-state heat map, see the interactive tax burden map.
Idaho metros — local tax overlay
State rates are uniform across Idaho— but local income, property, and sales taxes vary. Click any metro to run the full income tax calculator pre-populated with that city’s local layer.
- Boiseproperty 0.63% · pop 0.8Mmedian $70,400 →
- Meridianproperty 0.70% · pop 0.1Mmedian $82,500 →
- Nampaproperty 0.80% · pop 0.1Mmedian $62,200 →
More Idaho metros coming as we expand city coverage.
Idaho tax — common questions
What is the Idaho top marginal income tax rate in 2025?
Idaho's top marginal individual income tax rate is 5.70% on the highest bracket.
What is the Idaho effective property tax rate?
Idaho's statewide effective property tax rate is 0.69% of home value (annual). On a $400,000 home that's roughly $2,760/yr. Local variation can be ±0.5pp.
Does Idaho tax retirement income or Social Security?
Idaho taxes most retirement income, and does NOT tax Social Security benefits.
Are there any Idaho-specific tax quirks I should know about?
Idaho grocery tax credit ($120/person 2024) refunds part of the 6% sales tax paid on groceries — a unique mechanic where groceries are taxed but partially rebated via income tax.
Reviewed by CalcFi Editorial · Source: Tax Foundation State Individual Income Tax Rates (Jan 2025). Last verified 2026-04-19. Methodology at /about/editorial.