Property tax appeal · Ada County, ID
Appeal your property taxes in Ada County, ID.
Ada County homeowners appeal through Idaho’s system: the county assessor sets the value and the county Board of Equalization (the county commissioners) hears the case. Boards act on evidence of market value as of the assessment date, and a licensed, USPAP-compliant appraisal is that evidence.
$5, credited toward your appraisal.
Ada County, ID
Home to Boise
- Filing deadline
- On your notice
- Valuation date
- January 1
- Values your home
- County assessor
- Hears your case
- County Board of Equalization (the county commissioners)
- Desktop appraisal
- $225
- $5 check credited
- Timing
- Confirmed with your order
Deadline
Appeals to the county Board of Equalization are due by the fourth Monday in June, statewide — assessment notices arrive in late May or early June. Your assessment notice states the exact date.
Confirm your filing window and recipient requirements before ordering. Service availability and delivery depend on the property, evidence and appraiser. You remain responsible for filing on time.
How it works
How to appeal your property taxes in Ada County.
- Step 1
Check your savings
Enter your address and pay $5. We check your Ada County assessment against recent nearby sales.
- Step 2
Order the appraisal
A desktop appraisal valued as of your assessment date, with the $5 credited. Complex homes get one exact quote.
- Step 3
Show us your home
Walk through on your phone so the appraiser sees its condition. A desktop appraisal needs no visit.
- Step 4
File your appeal
A state-licensed ID appraiser signs it, with a cover letter and filing steps. You file by your deadline, and the county Board of Equalization (the county commissioners) hears your case.
The evidence
Boards act on value, not frustration.
However Idaho labels the process, the case underneath is the same: show what your home was actually worth on the assessment date. A licensed, USPAP-compliant appraisal, with comparable sales, documented adjustments and a signed opinion of value, is that showing.
What the appraisal gives you
- Valued as of your assessment date, not today
- Comparable sales with adjustments and citations
- Signed by a state-licensed ID appraiser
- A phone walkthrough; a desktop appraisal needs no visit
- Starting search in Ada County: 3+ comparable sales within ~1 mi, sold within 12 months
Search settings are starting points for the appraiser, not universal filing requirements. The appraiser selects appropriate evidence for the assignment.
Confirm before you file
- The assessment date (January 1) and tax year on your notice
- The recipient: Ada County Assessor
- The electronic filing format and required official forms
- Appraiser availability and delivery timing, before you order
The process
How Idaho handles appeals.
Idaho county assessors reappraise property annually at market value as of January 1 and mail assessment notices in late spring. To contest, you file with the county Board of Equalization — the county commissioners sitting in that capacity — by the fourth Monday in June, and the board hears cases into early July. If the BOE doesn’t give you what the evidence supports, the next stop is the Idaho Board of Tax Appeals or district court. The homeowner carries the burden of proof, and boards give the most weight to adjusted comparable sales bracketing January 1 — precisely what a licensed appraisal documents.
Worth knowing in Idaho
Idaho’s homeowner’s exemption shields a large share of an owner-occupied home’s value up to a statutory cap, so check the exemption line on your notice before concluding the market value is the problem.
FAQ
Ada County questions
When is the Ada County appeal deadline?
Appeals to the county Board of Equalization are due by the fourth Monday in June, statewide — assessment notices arrive in late May or early June. Confirm your exact filing window using the assessment notice and official authority.
How do appeals work in Ada County?
Idaho county assessors reappraise property annually at market value as of January 1 and mail assessment notices in late spring. To contest, you file with the county Board of Equalization — the county commissioners sitting in that capacity — by the fourth Monday in June, and the board hears cases into early July. If the BOE doesn’t give you what the evidence supports, the next stop is the Idaho Board of Tax Appeals or district court. The homeowner carries the burden of proof, and boards give the most weight to adjusted comparable sales bracketing January 1 — precisely what a licensed appraisal documents.
What evidence should I bring?
Comparable sales as of the assessment date, adjusted for the differences between those homes and yours — potential supporting evidence. Check the reviewing authority’s rules for admissibility, valuation date, forms and filing. An appraisal does not guarantee a reduction.
See if an appeal is worth it.
$5, credited toward your appraisal.