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Idaho has an effective property tax rate of 0.63%, producing an average annual bill of $1,817. The US national average is 1.07% — Idaho's rate is below, placing it at rank #14 out of 50 states (rank 1 = lowest).
Idaho assesses property at 100% of market value, with the taxable value for primary residences reduced by the Homestead Exemption. Market value is determined by county assessors and updated annually.
Idaho's Circuit Breaker program reduces the taxable value of a primary residence by 50%, up to a maximum of $125,000 in exemption value. This significantly lowers the effective rate for owner-occupants.
No formal cap on annual assessment increases. Rapid in-migration from California and other western states has driven significant valuation increases in the Boise metro.
The Boise metro has transformed from a low-cost market to one of the West's most expensive over 2019-2023. Property taxes have risen substantially as a result, even as the percentage rate remains modest.
The median home value in Idaho is $370,000. Idaho saw extraordinary appreciation 2019-2022 (60-80% in Boise), driven by remote worker in-migration. Prices have moderated but remain well above 2019 levels. At the 0.63% effective rate, a homeowner at the median value pays roughly $1,817/year in property taxes.
Data: Tax Foundation (2024), US Census Bureau ACS 2023, Zillow, ATTOM Data Solutions. Updated 2024–2025. Figures reflect state averages — consult a licensed professional for personalized advice.
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