CCSF Supplier - Business Registration

Business Registration is required for all entities that conduct business in SF and determines your tax responsibilities. Upon establishment of your business, you will receive a Business Account Number (BAN) and a Business Certificate (to be posted in your location). In some cases, suppliers may not be required to register. To become a supplier, please visit: http://sfcitypartner.sfgov.org. You must have a Bidder/Supplier ID Number to complete this form.

Use this form to:

  1. Determine if your business needs to register in San Francisco.
  2. Register your business and/or link your existing business account to your Bidder/Supplier ID Number.
  3. Declare that you do not need to register as a business in San Francisco.

Are you already registered?

Are you a registered business with a Business Account Number (or Business Registration Certificate)? If so, use the link provided to link your Bidder/Supplier ID Number to your Business Account Number Click here to enter your BAN and Bidder/Supplier ID Number

If you are not registered as a business:

Select Yes or No to the questions below to determine if you are required to register as a business with the Office of the Treasurer & Tax Collector.

Does this business:

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

  • Yes
  • No

San Francisco Business and Tax Regulation

Article 12: Business Registration

The City and County of San Francisco, the SF311 Customer Service Center and The Office of the Treasurer & Tax Collector can only provide general information and cannot advise customers on detailed tax matters regarding your particular business. This includes ordinance interpretations and tax calculations of payment or fees. Consult your own Tax Professional, Tax Attorney, or Certified Public Accountant for specific questions regarding your business.