Complete Your Business Tax Registration
Purpose of this Article: To direct Register Bidders to the San Francisco Office of the Treasurer & Tax Collector official instructions on how to complete their Business Tax Registration.
Audience: Registered Bidders seeking to become Fully Compliant Suppliers.
Author: Jessica Sierra
Version/Update Date: 3.0 / 06.30.2026
Search Terms: Approved, Fully Compliant, Supplier, How to, Business Tax Registration
Related Content: “Become a Fully Compliant Supplier”, “File an Optional 14B Local Business Enterprise Certification”
How to Complete Your Business Tax Registration
All suppliers and registered bidders doing business with the City and County of San Francisco must complete their Business Tax Registration as part of becoming a Fully Compliant Supplier.
To ensure the most accurate and up‑to‑date processing, please follow the official steps provided by the San Francisco Office of the Treasurer & Tax Collector.
Step‑by‑Step Instructions
The full instructions and requirements for completing your Business Tax Registration can be found here:
Business Tax Registration Form:
https://sftreasurer.org/business/register-business
Business Tax Registration Instructional Video:
https://sftreasurer.org/business/register-business#newbizreg
Business Tax Registration Detailed Instructions:
https://sftreasurer.org/business/register-business#instructions