Welcome to the County of San Mateo online auction website. This convenient service uses the latest technology to provide a secure way to bid on tax-defaulted property. With easy access to property information and auction results, you can research properties and enter bids from anywhere in the world.

Online tax sale auctions are part of our office's ongoing effort to use technology to improve access to tax-defaulted properties. It is important that you read the general information about tax deeds to familiarize yourself with the auction process prior to submitting a bid.

Sincerely,

Sandie Arnott
Treasurer-Tax Collector
County of San Mateo, California