Idaho Tax Calculators.
Tax year 2026 income tax rates, brackets, and sales tax for Idaho. Returns for tax year 2026 are generally filed in 2027; source links and last-verified dates are shown below.Tax year 2026 means income earned during calendar year 2026; those returns are generally filed in 2027. State and local sales tax rates can change during the year, so confirm current rules before filing or remitting tax.
Income Tax
Idaho’s enacted income-tax rate is 5.3%, applied above an indexed liability zero band. The latest Commission liability schedule and instructions verified here are for 2025; the 2026 indexed floor remains unverified. Published federal 2026 basic standard-deduction references are $16,100 single, $32,200 joint and $24,150 head of household, but they do not certify a complete Idaho deduction. Head of household follows the joint group for the liability zero band. Use reviewed 2026 taxable income or actual allowed deductions and, where needed, an independently confirmed same-year liability floor. Building fund tax, other taxes and payments are separate.
| Taxable Income | Rate |
|---|---|
| 2026 indexed liability floor not verified here | 5.3% |
Sales Tax
Ordinary grocery purchases are generally taxable at the state rate; qualifying SNAP/WIC purchases are exempt. Qualifying prescription drugs are exempt. The separate food tax credit has eligibility and tax-year rules. Combined rates shown are population-weighted July 1, 2026 estimates; actual item and local rates vary.
Idaho's top income tax rate is 5.3% for tax year 2026. Its combined state and local sales tax averages 6.03% (July 1, 2026 population-weighted estimate).
What is Idaho's income tax rate?
The enacted Idaho income-tax rate is 5.3%. It applies above an annually indexed liability zero band. The latest Commission liability schedule verified here is for 2025, so a complete 2026 liability cannot be certified from the rate alone.
Does Idaho tax groceries?
Idaho’s general sales tax applies to groceries. A separate food tax credit has eligibility and tax-year rules; its amount is not calculated in this state income-tax model. Verify the applicable year’s allowed credit rather than reusing an older amount.
How does Idaho compare to neighboring states?
Idaho’s enacted 5.3% income-tax rate alone does not establish an effective tax burden. Neighbor estimates use different deductions and coverage, and this model leaves unresolved 2026 Idaho liability assumptions unavailable. Residency, local taxes and living costs require separate review.
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