Orange County Property Tax Petition Guide
In Orange County, file your petition by On or before the 25th day following the mailing of the property appraiser's notice (the TRIM / Notice of Proposed Property Taxes). The TRIM notice is mailed in mid-to-late August, so the petition deadline falls in early-to-mid September; the exact date is printed on each parcel's notice and varies by county. at Orange County Property Appraiser's online portal.
| Deadline | On or before the 25th day following the mailing of the property appraiser's notice (the TRIM / Notice of Proposed Property Taxes). The TRIM notice is mailed in mid-to-late August, so the petition deadline falls in early-to-mid September; the exact date is printed on each parcel's notice and varies by county. |
|---|---|
| Lien date | January 1, 2026 |
| Petition body | Value Adjustment Board (VAB) |
| Assessor / district | Orange County Property Appraiser |
| Online portal | File online |
How to File a Petition in Orange County
- Gather your assessment notice — it lists your account number and any access code
- File online through Orange County Property Appraiser'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 VAB hearing