Coconino County Property Tax Petition Guide
In Coconino County, file your petition by File a Petition for Review of Valuation with the county assessor within 60 days after the date the assessor mailed the annual Notice of Valuation. The Notice of Valuation is mailed before March 1 of the valuation year (for taxes due the following year), so the administrative-petition deadline falls in late April / early May and is printed on each parcel's notice. A taxpayer may instead skip the administrative track and appeal directly to the Arizona Tax Court on or before December 15, regardless of whether administrative remedies were exhausted. at Coconino County Assessor's online portal.
| Deadline | File a Petition for Review of Valuation with the county assessor within 60 days after the date the assessor mailed the annual Notice of Valuation. The Notice of Valuation is mailed before March 1 of the valuation year (for taxes due the following year), so the administrative-petition deadline falls in late April / early May and is printed on each parcel's notice. A taxpayer may instead skip the administrative track and appeal directly to the Arizona Tax Court on or before December 15, regardless of whether administrative remedies were exhausted. |
|---|---|
| Lien date | January 1, 2026 |
| Petition body | State Board of Equalization (SBOE) |
| Assessor / district | Coconino County Assessor |
| Online portal | File online |
How to File a Petition in Coconino County
- Gather your assessment notice — it lists your account number and any access code
- File online through Coconino County Assessor's portal or by mail
- State your grounds and submit evidence (comparable sales, a licensed appraisal, or photos of defects)
- Request an informal review to try to settle before a formal SBOE hearing