When are property taxes due in Alameda County, California?

Alameda County property taxes are due December 10. A second installment is due April 10. This deadline applies to all counties in California.

What is the penalty for late property tax payment in Alameda County, California?

The late payment penalty in Alameda County is 10% + $10 fee.

How do I pay Alameda County, California property taxes?

You can pay Alameda County property taxes via Online, mail, in-person.

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Alameda County Property Tax Due Date

Name: Treasurer-Tax Collector
Address: 1221 Oak St, Room 131, Oakland, CA, 94612, US
Telephone: (510) 272-6800

California

(510) 272-6800

2026 Property Tax Due Dates

Official Source

Installment 1

December 10

First installment

Installment 2

April 10

Second installment

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Penalty: 10% + $10 feeGrace period: None

Payment Methods

Online, Mail, In-Person

Alameda County Treasurer

Phone

(510) 272-6800

Office Address

1221 Oak St, Room 131
Oakland, CA 94612

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Office Hours

Mon-Fri 8:30am - 5pm

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Alameda County Treasurer

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In Person

Visit the Treasurer's office — 1221 Oak St, Room 131, Oakland CA 94612, Mon-Fri 8:30am - 5pm

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Other Counties in California

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View all California counties →

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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.