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The Alameda County Assessor is pleased to announce that the AC Property App is now available on Apple devices. You can lookup your assessed value, property taxes, and parcel map. You can even pay your property taxes right from the app. Download it from the iTunes store.

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(510) 272-3787
Business Personal Property:
(510) 272-3836
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Tax Refund Advisory
ADVISORY: It has been brought to the County's attention that certain organizations are offering to obtain uncontested tax refunds from the County on taxpayers' behalf for a fee. This is an advisory that if you have such a refund owed to you due to overpayment of property taxes or an adjustment in property assessed value, you are entitled to receive that refund directly from the County at no cost. To see if you are due a refund, please click on Refunds and complete the comment section advising that you are inquiring about a refund. Please include the property's parcel number (APN), address and your name. The County Auditor’s office will inform you whether or not a refund is currently due and the process for obtaining such a refund.