I have a question about my property taxes. Who should I call?
Questions regarding current year payments or prior year delinquencies can be answered by the Tax Collector. In fact, all questions related to the payment of taxes should be directed to the Tax Collector.

You can reach the office at (925) 957-5280. Please have your Assessor's Parcel Number (APN) available when you call so staff can go directly to your account.

Questions regarding assessed values should be directed to the County Assessor. You can reach the office at (925) 313-7400, or if you follow this link, you can send them e-mail.

Questions regarding special taxes, assessments, fees and charges on your tax bill should be directed to the agency that requested them placed on your bill. The agencies' phone numbers are listed on your tax bill. The phone numbers also are available on the Tax Collector's website which is on your account detail page. (From the Account Lookup page, search for your account by APN or address. Select account detail to see detail showing the individual taxes and contact phone numbers where applicable.)

Questions regarding computation of property tax can be answered by the Auditor-Controller's staff. Please call (925) 646-1403 or email us with your question. Tax Collector Information

Payroll / Property Tax - Auditor-Controller

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1. I have a question about my property taxes. Who should I call?
2. The Assessor is reducing the assessed value of my property and I have already paid this year’s property taxes. When will I receive my property tax refund?
3. The Assessor is reducing the assessed value of my property and I have not yet paid this year’s property taxes. What should I do - should I pay the bill I received in the fall?
4. I am planning to sell my property. Are there any special property tax rules to consider?
5. Who ultimately receives the property taxes I pay?