Applying In Person or by Mail

Affidavit of Identity Form Requirement (AB 1325)

Pursuant to Assembly Bill 1325, effective January 1, 2014, the San Mateo County Assessor-County Clerk-Recorder’s Office requires a completed Affidavit of Identity form to accompany any Fictitious Business Name (FBN) Statement (Original, Refile and New).


The newly enhanced computer system requires registrants to complete the Fictitious Business Name (FBN) Statement application at the County Clerk computer workstations. Any filings submitted by a Third Party/Agent/Courier will require a completed Affidavit of Identity Form signed by the registrant and acknowledged by a notary, in addition to a completed Authorized Agent Form. Anyone filing a Fictitious Business Name (FBN) Statement in person must present valid government-issued photo identification to verify the authorized signer.


Business owners are required to fill out the entire Affidavit of Identity Form and have the bottom portion acknowledged by a notary and mailed in along with the completed and signed Fictitious Business Name (FBN) Statement and payment in the form of a personal or cashier’s check or money order.

The link at the bottom of the page contains a PDF file with the required forms for mail-in applications: A) Fictitious Business Name (FBN) Statement, B) Affidavit of Identity Form, and C) Authorized Agent Form.

Please note: All registrants (LLP, LP, LLC, Corp. Non-Profit, Inc., and Foreign Association) must submit a Certificate of Status issued by the Secretary of State indicating the current existence and good standing of that business entity [Business and Professions Code Section 17913(f)]. Please visit the state’s website to place a request at

This requirement has been made in accordance with the legislative amendment of Business and Professions code sections 17913, 17916, 17922, 17923, 17927 and 17929.

By clicking here to access the Fictitious Business Statement and Affidavit of Identity forms, I am confirming that I have read and understood the requirements stated above.