Published July 30, 2025

How to Lower Your Property Taxes in Alameda County: A 2025 Guide for Homeowners

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Written by Leah Tounger

Property tax

Property taxes in Alameda County can be a significant expense for homeowners. Fortunately, there are several strategies available to potentially reduce your tax burden. This guide outlines key methods to help you navigate the options in 2025.

๐Ÿ  1. Apply for the Homeowners' Exemption

If you own and occupy your home as your principal residence on January 1, you're eligible for a $7,000 reduction in your property's assessed value, translating to approximately $70 in annual tax savings. To claim this exemption, complete the BOE-266 form and submit it to the Alameda County Assessor's Office. This is a one-time application, but ensure your residency status remains current.Alameda Post+6Alameda County Assessor+6Capropeforms+6

๐Ÿ“‰ 2. Request a Decline-in-Value Reassessment (Proposition 8)

Under Proposition 8, if your property's market value as of January 1 is less than its assessed value, you can request a temporary reduction in assessed value. To apply, provide the Assessor's Office with evidence, such as sales data of comparable properties sold between January 1 and March 31. You can submit your request through the online form.Approved reductions apply for one fiscal year and are reviewed annually.Alameda County Assessor+5Alameda Post+5Alameda County Assessor+5Bornstein Law+3Alameda County Assessor+3Alameda County Assessor+3

๐Ÿ“ 3. File a Formal Assessment Appeal

If you disagree with your property's assessed value, you can file a formal appeal with the Alameda County Assessment Appeals Board. The filing period for regular assessments is from July 2 to September 15. To initiate the process, complete the Assessment Appeal Application and submit it along with the $50 non-refundable fee. Be prepared to provide supporting documentation, such as recent appraisals or comparable sales data.aspaservicesq.acgov.orgAlameda County Government+3Alameda County Government+3Alameda County Government+3

๐Ÿ”„ 4. Understand Proposition 19 Benefits

Proposition 19 allows homeowners over 55, individuals with disabilities, and victims of natural disasters to transfer their property's tax base to a new home of equal or lesser value anywhere in California. This can result in significant tax savings when downsizing or relocating. For more information on eligibility and application procedures, contact the Alameda County Assessor's Office.

๐Ÿงพ 5. Explore Additional Exemptions

Beyond the standard Homeowners' Exemption, Alameda County offers other exemptions that can reduce your property tax liability:

  • Veterans' Exemption: Available to eligible veterans, this exemption can provide additional tax relief.

  • Church and Welfare Exemption: Applicable to properties used exclusively for religious or charitable purposes.

To learn more about these exemptions and determine your eligibility, contact the Assessor’s Office at (510) 272-3770.Alameda County Government+1Capropeforms+1

๐Ÿ“ž Need Assistance?

Navigating property tax reductions can be complex, but resources are available to help:

By proactively exploring these options, you can potentially lower your property taxes and achieve meaningful savings.


Note: This information is intended for general guidance. For personalized advice, consult with a tax professional or the appropriate county office.

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