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San Diego County- Filing Period to Open for Property Tax Assessment Appeals in July 2023

Updated: Apr 4

For San Diego County residents and businesses who disagree with their property tax assessments for the 2023-2024 Fiscal Year, there is an opportunity to file an application to appeal their value between July 2nd and November 30th 2023. To access the application and information booklets, individuals can visit the County's website at

Alternatively, residents can pick up applications and speak with Clerk of the Board staff at the County Administration Center, located at 1600 Pacific Highway, Room 402, San Diego, CA 92101-2471.

While some individuals may choose to file their appeal on their own, there are companies such as AOPTA The Property Tax Experts that specialize in representing property tax payers and act as intermediaries with the Assessor's Office. These firms operate on a performance-based model and only request a fee if there is a successful reduction in the property tax assessment.

To file an appeal application, taxpayers must know their parcel or tax bill number, property address, and state their opinion of the property's market value on the application. Applications must be received by the Clerk of the Board of Supervisors Office no later than 5 p.m. on Nov. 30 or postmarked by midnight of Nov. 30.

For those who are interested in understanding more about their property and its characteristics, AOPTA offers a free property profile with the parcel number and property characteristics. Individuals can request this free property profile by following this link:

If individuals require assistance from AOPTA to review their specific property tax situation, they can request a one-to-one meeting with the Valuation team.

In conclusion, the appeal application process provides San Diego County residents and businesses with an opportunity to appeal their property tax assessment. The application deadline for the 2023-2024 Fiscal Year is November 30th, and applications can be accessed via the County's website or picked up in person. While some individuals may choose to file their appeal on their own, companies such as AOPTA The Property Tax Experts offer assistance and operate on a performance-based model.

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