Navajo County property tax appeal 2028: deadline, forms and how to file
To appeal a Navajo County assessment, file with the Navajo County Assessor's Office by mail or in person; in Arizona the deadline is 60 days after the Notice of Value is mailed. Confirm the exact date on your notice or with the assessor; we add each county's 2028 date here when it is published.
Real property Notice of Valuation mailed between January 1 and March 1 each year; Notice of Change mailed September 30 each year (county pages).
Data as of 20 Oct 2026 · Navajo County Assessor's OfficeCheck your own assessment
Free. We compare the value on your notice with recent sales of similar homes nearby and tell you whether an appeal is worth filing. Have your assessment notice and tax bill handy.
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How to file in Navajo County
- Step 1
File the appeal
Use the method your notice lists, usually Form 82130R, by the deadline on the notice.
- Step 2 · before the hearing
Prepare and submit your evidence
The petition must state your opinion of full cash value and the information behind it (A.R.S. §42-16051): for a home, at least one comparable property’s value or sale in your area, or your own recent purchase. Appeal the total value, not land and improvements separately. Issues you do not raise with the assessor generally cannot be raised later at the board (§42-16056), so put all of it in the first petition.
- Step 3
Meet, then hear
An petition for review with Navajo County Assessor's Office comes first; if you decline the offer, the Navajo County Board of Equalization hears the case. Most reductions happen at the first step.
Before you file: how to read your notice · evidence that works · informal vs formal hearing · when not to appeal
Forms
| Form | Number | Use | Format |
|---|---|---|---|
| Residential Petition for Review of Valuation | 82130R | The petition to the assessor for a single-family home. Give your opinion of full cash value and the comparables behind it. | |
| Petition for Review of Real Property Valuation | 82130 | The petition for any other real property. |
Appeal levels
| Level | Who hears it | Deadline | Cost |
|---|---|---|---|
| Petition for review | Navajo County Assessor's Office | 60 days after the Notice of Value mailing date | Free |
| Board of Equalization | Navajo County Board of Equalization (Board of Supervisors) | 25 days after the assessor’s decision is mailed | Free |
| Court | Arizona Tax Court (small-claims division available) | 60 days after the last board decision is mailed, or directly by December 15 | Court filing fee; taxes must be paid on time or the appeal is dismissed |
What evidence the board accepts
The petition must state your opinion of full cash value and the information behind it (A.R.S. §42-16051): for a home, at least one comparable property’s value or sale in your area, or your own recent purchase. Appeal the total value, not land and improvements separately. Issues you do not raise with the assessor generally cannot be raised later at the board (§42-16056), so put all of it in the first petition.
Navajo County questions
When is the Navajo County appeal deadline in 2027?
60 days after the mailing date of your Notice of Value, which arrives before March 1, 2027. The exact date is printed on the notice. That notice sets your value for tax year 2028.
How do I file a petition in Navajo County?
Mail or deliver Form 82130R (homes) or 82130 to the Navajo County Assessor's Office, Navajo County Assessor, P.O. Box 668, Holbrook, AZ 86025. A postmark by the deadline counts as on time.
What part of my value can I appeal?
The full cash value and the property’s legal class. The limited property value, which your tax is based on, follows from the full cash value by formula and cannot be appealed on its own.
What if the assessor denies my petition?
You have 25 days from the mailing of the assessor’s decision to appeal to the Navajo County Board of Equalization. Include the Notice of Value and the decision.
How do I contact the Navajo County Assessor's Office?
Mail: Navajo County Assessor, P.O. Box 668, Holbrook, AZ 86025. Phone: (928) 524-4086. Hours and walk-in details: navajocountyaz.gov.
Can I go straight to court?
Yes. You can skip the administrative levels and file in the Arizona Tax Court by December 15, or file within 60 days of the last board decision. Owner-occupied homes qualify for the small-claims division. Taxes must be paid on time.
Check whether yours is over-assessed
Nearby counties
Apache County · Coconino County · Gila County · Yavapai County · Greenlee County · Graham County · Pinal County
- Navajo County Assessor - Appeal Process
- Navajo County Assessor - Notice of Valuation
- Navajo County Assessor - Notice of Valuation Change
- Navajo County Assessor home
- Navajo County Assessor - Contact Assessor
- Navajo County - Personal Property Petition for Review instructions
- A.R.S. §42-15101 — Notice of valuation
- A.R.S. §42-16051 — Petition for review to the assessor
- A.R.S. §42-16056 — Assessor’s decision and appeal
- A.R.S. §42-16201 — Appeal to court
- A.R.S. §12-172 — Tax court small claims
- Arizona DOR — Property Tax Appeals
- Arizona DOR — Property Tax Forms
- U.S. Census Bureau, county population estimates (2024) and county gazetteer (2024).