View your current San Mateo county property tax statements (secured & unsecured) and pay them online using this service.
If your Unsecured property tax payment is not received or postmarked by the delinquent date, a 10% penalty and a $35.00 collection fee are added to your bill.
If your bill remains unpaid for two additional months, a monthly penalty of 1 and 1/2% begins to accrue. In addition, if a Certificate of Tax Lien is recorded by the County of San Mateo Tax collector, an additional fee of $13.00 will be required to release the lien.
San Mateo County secured property tax bill is payable in two installments:
Secured tax bills and Unsecured tax bills from the San Mateo County (CA) covers a "fiscal year." The fiscal year begins July 1 and ends on June 30 of the following calendar year.