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Pay property taxes in California

Tax bills, balances and payment options.

In California, 58 county departments publish 60 official links for this service, 31 of them online. Reviewed requirements cover deadlines (320), payment methods (102), availability notices (81), documents (37) and processing time (7). 28 counties have a page for it below.

Before you start · 4 things to check

Choose the county collector for your bill and payment method; the BOE and State Controller entries are shared state information, not local offices.
A due date and a delinquency date differ. Check the regular secured-roll calendar, the next-business-day rule, your bill type and the exact payment-channel cutoff.
The homeowners’ exemption reduces taxable assessed value. Proposition 19, supplemental bills and postponement each have separate conditions and filing rules.
Property-tax postponement is a loan-like deferment secured by a lien and must be repaid. Check the current programme year, funding and application conditions.

1 guide with reviewed service links · Contra Costa

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U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

County government · Contra Costa

Treasurer-Tax Collector

Tax Collector

View or pay property taxesOfficial online service

Official Contra Costa County property-tax bill or payment portal. Follow the county’s instructions for your bill type and review the amount and any payment charges before paying.

Internet auction registration and payment

The county requires preregistration, a refundable $5,000 deposit and a $35 nonrefundable registration fee; auction settlement accepts wire transfer only.

Official information checked October 26, 2026 · Details & sources

Source checked October 14, 2026

Contra Costa County · Contra Costa County — Treasurer-Tax Collector | Contra Costa County, CA Official Website (opens in a new tab)

Current county property-tax service heading or explicitly linked destination; bill type and payment channel are reviewed separately.

n M. Mierzwa Treasurer-Tax Collector Belinda Zhu Assistant Treasurer Public Response Form Tax Portal Property owners can look up property tax details, pay online, schedule payments, sign up for Paperless Billing and review tax history. View or Pay Now Property Tax Information General information regarding secured, unsecured, supplemental and other services the Tax Collector provides. Learn more >

Saved evidence: 97f9ec5f4a0fa1b7 · Agent source review

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Pay property taxes in California

Treasurer-Tax Collector

Pay property taxes by county