Idaho property tax
Official source data 2024
On a $400,000 home in Idaho
$1,947
estimated annual property tax
ACS 2020-2024 ratio of medians. This estimate does not use your parcel’s assessment or district tax rates.
Make it your number.
Your actual bill depends on your local assessment, exemptions, and taxing districts.
A home value. A yearly budget.
These scenarios use the same 0.49% effective rate. They do not predict an individual tax assessment.
| Home value | Annual estimate | Monthly budget |
|---|---|---|
| $100,000 | $487 | $41 |
| $150,000 | $730 | $61 |
| $200,000 | $974 | $81 |
| $250,000 | $1,217 | $101 |
| $300,000 | $1,461 | $122 |
| $350,000 | $1,704 | $142 |
| $400,000 | $1,947 | $162 |
| $450,000 | $2,191 | $183 |
| $500,000 | $2,434 | $203 |
| $600,000 | $2,921 | $243 |
| $750,000 | $3,651 | $304 |
| $1,000,000 | $4,869 | $406 |
| $1,250,000 | $6,086 | $507 |
| $1,500,000 | $7,303 | $609 |
| $1,750,000 | $8,520 | $710 |
| $2,000,000 | $9,737 | $811 |
Property tax by county.
44 counties and county equivalents in Idaho. Median taxes and values come from ACS 2024.
| County | Effective rate | Median tax paid | Your value estimate |
|---|---|---|---|
| Ada County | 0.52% | $2,655 | $2,073 |
| Canyon County | 0.52% | $2,011 | $2,063 |
| Kootenai County | 0.44% | $2,267 | $1,748 |
| Bonneville County | 0.50% | $1,858 | $2,015 |
| Twin Falls County | 0.61% | $2,066 | $2,446 |
| Bannock County | 0.64% | $1,920 | $2,554 |
| Madison County | 0.48% | $2,001 | $1,930 |
| Bonner County | 0.38% | $1,847 | $1,514 |
| Bingham County | 0.50% | $1,477 | $2,014 |
| Nez Perce County | 0.78% | $2,609 | $3,118 |
| Latah County | 0.64% | $2,368 | $2,570 |
| Jefferson County | 0.45% | $1,824 | $1,786 |
| Elmore County | 0.54% | $1,701 | $2,150 |
| Payette County | 0.40% | $1,357 | $1,588 |
| Cassia County | 0.41% | $1,166 | $1,639 |
| Jerome County | 0.63% | $1,725 | $2,539 |
| Blaine County | 0.38% | $2,778 | $1,511 |
| Minidoka County | 0.48% | $1,261 | $1,921 |
| Gem County | 0.33% | $1,418 | $1,323 |
| Idaho County | 0.32% | $995 | $1,283 |
| Gooding County | 0.51% | $1,279 | $2,039 |
| Franklin County | 0.40% | $1,482 | $1,591 |
| Fremont County | 0.44% | $1,398 | $1,780 |
| Shoshone County | 0.50% | $1,334 | $1,996 |
| Boundary County | 0.39% | $1,595 | $1,554 |
What can change your bill?
The ACS effective rate is a ratio of medians, not a statutory rate. Local assessed values, levies, classification, caps and exemptions determine the actual bill.
Exemptions & assessment
No uniform flat exemption is applied. Enter your assessor-provided assessment ratio and qualifying exemption for a separate statutory scenario.
Payment dates & appeals
Ordinary real-property taxes may be paid in full by December 20, or half by December 20 and the remainder by June 20. Confirm an approved arrangement or special demand with the county treasurer.
After discussing the assessment with the assessor, file an ordinary annual Board of Equalization appeal through the county clerk by the fourth Monday in June. Supplemental and occupancy rolls use separate deadlines.
Check Idaho’s official property-tax guidance
Use an assessed value, exemption, and local millage
This separate scenario needs your assessor’s inputs. An exemption applies only to eligible levies; do not apply it to the county’s historical effective rate.
Good questions. Clear answers.
How much is property tax on a $400,000 home in Idaho?
The historical effective-rate estimate is $1,947 per year, or $162 a month. It multiplies $400,000 by 0.49%.
Is the effective rate the rate on my tax bill?
No. It is median real-estate taxes paid divided by median home value in the ACS 2020-2024 survey. Your taxing districts, assessed value, classification and exemptions determine your bill.
Can I subtract a homestead exemption from this estimate?
Use the separate statutory scenario with a qualifying levy. Subtracting an exemption from an ACS effective-rate estimate can double-count relief already reflected in taxes paid.
Does a higher purchase price change my assessment?
Assessment rules and reassessment dates vary by state and locality. Contact the linked official property-tax office before relying on a historical county ratio.
How do I appeal a property-tax assessment?
Read the deadline and procedure on your assessment notice, then use the official state guidance above to locate your assessor or review board. County survey data does not establish your appeal deadline.
Check the source.
Data as of 2024. Retrieved .
- www2.census.gov / Geos20245YR.txt
- www.census.gov / notes-on-acs-estimate-and-annotation-values.html
- www2.census.gov / acsdt5y2024-b01003.dat
- www2.census.gov / acsdt5y2024-b25077.dat
- www2.census.gov / acsdt5y2024-b25103.dat
- www2.census.gov / acsdt5y2024-b25064.dat
- www2.census.gov / acsdt5y2024-b19013.dat
- tax.idaho.gov / property-tax As of 2026-10-02
- tax.idaho.gov / pubs_ebr00165 As of 2026-10-02
- tax.idaho.gov / understanding-property-taxes As of 2026-10-02