• The due date for property tax payments is found on the coupon(s) attached to the bottom of the bill. Information on due dates is also available 24/7 by calling (925) 957-5280.
• To pay in person you must come to our office at:

                                   Finance Building
                                    625 Court St, Room 100
                                    Martinez, CA 94553
                                    Driving Directions

• The business hours for in-person visits and payments are from 8:00 am to 5:00 pm weekdays. See Holiday Closings.
• You may pay by cash, standard check, money order, cashier's check or certified check.
• Self-service online computers are available for paying by credit card or electronic check. NOTE: A service fee is charged by the third-party electronic payment provider for credit and debit card payments. 
• Submit original payment coupon and check(s) per Assessor’s Parcel Number (APN). 
• Each check should include the following to ensure proper posting of payment and will help us contact you if we have a question about your payment:
  • Name (or the name of the taxpayer on whose behalf a mortgage or title company is paying)
  • Property location (with unit number, if needed)
  • 10-digit APN
  • Phone number
  • Your email address (if available)
  View a sample check.