CountyTax

Idaho property tax rates by county

Idaho · #46 of 52 · 44 counties

0.49%state benchmark

Median annual property tax $2,038 · median home value $418,600

Below the U.S. benchmark 0.94%. First half due Dec 20, Second half due Jun 20. Payment dates ↓

Same house, different county

Apply each county's benchmark rate to a $418,600 home, the Idaho median: about $3,263 a year in Nez Perce County (0.78%) versus $1,385 in Gem County (0.33%) — $1,878 a year apart for the same house. Counties with at least 20,000 people.

Where most Idaho residents live

CountyRateMedian taxOf income
Ada County#11 of 440.52%$2,6552.9%
Canyon County#12 of 440.52%$2,0112.6%
Kootenai County#25 of 440.44%$2,2672.8%
Bonneville County#14 of 440.50%$1,8582.3%
Twin Falls County#6 of 440.61%$2,0663.1%

Of income = median annual property tax ÷ median household income (all households, owners and renters), ACS 2020–2024 5-year. A real bill depends on the assessed value and exemptions, not only the rate.

Counties, highest rate first

When it's due in Idaho

All states
First half
Due Dec 20
Late from Dec 21 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill.
Second half
Due Jun 20
Late from Jun 21 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill.
Late penalty2% late penalty immediately upon delinquency plus 1% per month interest (Idaho Code § 63-903, § 63-1001)
Appeal windowfourth Monday of June to County Board of Equalization (Idaho Code § 63-501)

First half due December 20, delinquent December 21. Second half due June 20, delinquent June 21. Regular annual schedule; tax year: calendar 2026, bills mailed November. Source: Idaho Code § 63-902, § 63-903, rules checked 2026-09-19. Confirm the amount and deadline on your official tax bill.

Benchmark = median real estate taxes paid ÷ median home value, ACS 2020–2024 5-year. Counties where the Census reports a range ("less than $200", "$10,000 or more") get no rate.