Free Tool · Treasure Valley
The 2026 Idaho Property Tax Checklist.
Real numbers by city. The $125,000 homeowner's exemption. A 5-step pre-offer verification. The veterans benefit worth up to $1,500 a year. Every 2026 deadline — printable, no fluff.
How Idaho property taxes actually work
Your property tax bill in Idaho is not one tax. It's a stack of local levies — school district, fire district, city services, county services, library, ambulance — layered on top of each other. Two homes on the same street can have meaningfully different bills because they sit in different taxing districts.
Idaho's statewide effective rate runs roughly 0.49%–0.53% of home value, depending on the source and methodology. That's one of the lowest in the country — the Tax Foundation ranks Idaho among the three lowest property-tax states by effective rate. But effective rate doesn't tell you what you will pay. Local levies vary by city, district, and bond status.
Within the Treasure Valley, effective rates run roughly 0.60%–0.73% in Ada County and 0.42%–0.55% in Canyon County, depending on neighborhood and active bonds. The school district levy is typically the largest single component of any bill.
The big takeaways:
- You can lower your bill substantially with the homeowner's exemption (Part 3) — but only if you file
- The MLS tax number is almost always stale. The current owner's exemption status, levy district, and last reassessment all matter
- When you buy above the current assessed value, the county will likely adjust the following year. Your bill will probably go up. This is normal. Budget for it now.
The real numbers by city
| City | Median sale price | Est. annual tax (with exemption) |
|---|---|---|
| Boise | $520K–$560K | $2,400–$3,800 |
| Meridian | $560K | $2,600–$3,900 |
| Eagle | $770K–$800K | $3,900–$5,800 |
| Star | $555K–$610K | $2,500–$4,000 |
| Kuna | $430K–$475K | $1,900–$3,000 |
| Nampa | $410K–$440K | $1,800–$2,500 |
| Caldwell | $400K–$435K | $1,700–$2,400 |
| Middleton | $485K–$520K | $2,000–$2,800 |
Ranges reflect Ada County effective rates of 0.60–0.73% and Canyon County effective rates of 0.42–0.55%. Median price sources: Intermountain MLS, Boise Regional Realtors, Redfin, Houzeo (March 2026). Estimates assume primary residence with homeowner's exemption applied. Two installments paid December 20 and June 20.
How Idaho compares to where you're moving from
| City | Effective rate | Tax on $600K home (homestead applied) | vs Boise |
|---|---|---|---|
| Boise / Meridian, ID | 0.60–0.73% | ~$3,150/yr | — |
| Phoenix, AZ | ~0.48% | ~$2,880/yr | −$270/yr |
| Denver, CO | ~0.50% | ~$3,000/yr | −$150/yr |
| Portland, OR | 0.90–1.07% | ~$5,910/yr | +$2,760/yr |
| Seattle, WA | ~0.99% | ~$5,940/yr | +$2,790/yr |
| Sacramento, CA | 1.05–1.30% | ~$6,520/yr | +$3,370/yr |
| Austin, TX | 1.54–2.07% | ~$9,800/yr | +$6,650/yr |
| U.S. median | ~1.02% | ~$6,120/yr | +$2,970/yr |
$600K primary residence with each state's standard homestead exemption applied where one exists: Idaho's $125K, Texas's $100K school-tax piece, California's $7K. Phoenix, Denver, Portland, and Seattle don't have a comparable program for typical owner-occupants — those rows reflect each market's effective rate against the full purchase price. Effective rates from Tax Foundation 2026 state rankings, county assessor data, and Construction Coverage 2026 metro analysis. Real bills vary by levy district, school bonds, and specific neighborhood — always verify with the local assessor.
What "homestead treatment" looks like in each state
Idaho's $125,000 homeowner's exemption is unusually generous. Here's what each comparison market actually offers a typical owner-occupant on a $600K primary residence:
- Idaho — 50% off taxable value, capped at $125,000. Saves a typical Ada County buyer ~$830/yr.
- Texas (Austin) — $100,000 off school-district taxable value only (rising to $140,000 as 2025's Prop 13 phases in). Saves ~$1,000/yr on the school portion. Number above includes this.
- California (Sacramento) — $7,000 off assessed value. ~$70/yr savings — essentially symbolic. Prop 13 caps annual assessed-value growth at 2% while you own, which matters more over time than the exemption itself.
- Arizona (Phoenix) — No broad exemption. Owner-occupied homes get a lower assessment class (Class 3 vs Class 4), already baked into the effective rate above.
- Colorado (Denver) — General homestead exemption applies to seniors 65+ only. Most working-age buyers get nothing.
- Oregon (Portland) — No homestead exemption. Measure 50 caps annual assessed-value growth at 3% instead — useful long-term but doesn't reduce the starting bill.
- Washington (Seattle) — No homestead exemption. Senior/disabled deferral programs only.
Your estimated annual tax
Enter your home budget and pick a county. We'll show you what you'll save with the exemption and what your annual bill probably looks like.
Estimates only. Actual bills depend on your specific levy district, bond status, and the county's assessed value (not your purchase price). Always verify against the county assessor's site before making an offer.
The homeowner's exemption
Idaho's homeowner's exemption removes 50% of the value of your primary residence and up to one acre of land, capped at $125,000, from your taxable value. On a $500,000 home, that's typically a $1,200–$1,500/year tax savings. It is not automatic — you have to apply with your county assessor.
The cap has been set at $125,000 since 2021 and remains there for 2026 unless the legislature changes it.
File your exemption — 4 steps
Before you buy
For veterans — the $1,500 benefit
If you are an Idaho homeowner with a 100% service-connected VA disability rating — or you receive 100% compensation due to individual unemployability — Idaho will reduce your property tax bill by up to $1,500/year on your primary residence and up to one acre.
- No income limit. This is separate from the income-based Circuit Breaker program
- Surviving spouses can continue using the benefit
- If your rating is permanent and total, the benefit auto-renews each year until your homestead changes
- You must have the homeowner's exemption in place first — file that before applying for this
Apply for the veterans benefit — 4 steps
See our full veterans benefits page for the broader VA-loan, residual income, funding fee, and SAH/SHA grant context.
Every 2026 deadline that matters
| When | What | Details |
|---|---|---|
| January 1 | Assessment date | Counties value your property as of this day for the upcoming tax year |
| January 1 – April 15 | Veterans benefit window | Apply for the $1,500 reduction — file with county assessor or via the Tax Commission |
| January 1 – April 15 | Circuit Breaker window | Income-based reduction (seniors, widows, disabled) — up to $1,500 for 2026 if 2025 income was ≤ $39,130 after medical |
| 1st Monday in June | Assessment notices mailed | Your annual notice of value arrives — review it carefully |
| 4th Monday in June | Appeal deadline | Last day to file a written appeal with the county Board of Equalization |
| 2nd Monday in July | HB 292 Relief Credit cutoff | Homeowner's exemption must be in place by this date to qualify for the additional state-funded credit on top of the base exemption |
| 4th Monday in November | Tax bills mailed | Your annual bill arrives |
| December 20 | First-half payment due | Pay full year or first half. Late = 2% late charge + 1%/month interest starting January 1 |
| Last business day in December | Homeowner's Exemption (Ada County) | Per current Ada County interpretation, applications filed after this date apply to the next tax year |
| June 20 (next year) | Second-half payment due | If you split the payment in December, the other half is due now. Same penalty structure |
Sources & small print
Primary sources Last verified May 2026
- Homeowner's exemption (50% / $125K cap): Idaho State Tax Commission — tax.idaho.gov/taxes/property/homeowners/exemption
- Veterans property tax reduction ($1,500): Idaho State Tax Commission — tax.idaho.gov/taxes/property/homeowners/veteran-benefit
- Circuit Breaker (income-based reduction): Idaho State Tax Commission — tax.idaho.gov/taxes/property/homeowners/reduction
- Payment deadlines & late charges: Ada County Treasurer — adacounty.id.gov/treasurer
- Ada County exemption application: Ada County Assessor — adacounty.id.gov/assessor
- Canyon County exemption / VA credit: Canyon County Assessor — canyoncounty.id.gov/assessor
- HB 292 (Homeowner Tax Relief credit): Idaho Legislature — legislature.idaho.gov H0292 (2023)
- Idaho effective property tax rate: Tax Foundation 2026 state rankings — taxfoundation.org/location/idaho
- Median sale prices (March 2026): Intermountain MLS via Boise Regional Realtors; Redfin housing market data; Houzeo market data
- Out-of-state city comparison rates: Multnomah County DART (Portland); King County Assessor 2026 levy (Seattle); Travis County Tax Office 2026 (Austin); Sacramento County Assessor + Prop 13; Maricopa County Treasurer (Phoenix); Denver Assessor; Tax Foundation state property tax data; Construction Coverage 2026 metro analysis
Want a personal review?
We'll pull your exact numbers — free.
Send us the address you're targeting and we'll pull the current assessor data, model your year-one and year-two bills with the exemption applied, and flag anything that looks off. No obligation. 30 minutes with Rachael.
Book a 30-minute tax review → or call (208) 897-2760Treasure Valley specialist. Built this checklist after watching out-of-state buyers get blindsided by year-two reassessment one too many times.