How to appeal a San Joaquin County, CA property assessment

✓ Verified — Last verified October 24, 2026

Filing details published for San Joaquin County. Match the notice and assessment cycle to the official instructions.

Official appeal instructions

Not tax or legal advice; confirm with your county.

Filing timing

Window

July 2, 2026 through November 30, 2026

Official source. Verified .

Where to file

Clerk of the Board Office, 44 North San Joaquin Street, Sixth Floor, Suite 627, Stockton, CA 95202

Official source. Verified .

Official appeal page

Official appeal page

Official source. Verified .

Official offices

San Joaquin County Assessor

Office website

Office website

Official source. Verified .

Phone

(209) 468-2630

Official source. Verified .

All San Joaquin County dates, offices and sources

Sources for these instructions

https://www.sjgov.org/department/cob/assessment-appeals
July 2, 2026 through 5:00 p.m., November 30, 2026.

Verified October 24, 2026

https://www.sjgov.org/department/cob/assessment-appeals
Clerk of the Board Office 44 North San Joaquin Street Sixth Floor, Suite 627 Stockton, CA 95202

Verified October 24, 2026

https://www.sjgov.org/department/cob/assessment-appeals
Assessment Appeals

Verified October 24, 2026

Continue with your property

Common questions

Where do I file a San Joaquin County assessment appeal?

Clerk of the Board Office, 44 North San Joaquin Street, Sixth Floor, Suite 627, Stockton, CA 95202

Updated , from cited verification dates. Individual sources may have earlier checks.