Business License

If you will be conducting business within the City of Brentwood and need to apply for a business license, you've come to the right place!

The City of Brentwood recognizes the value and importance of a strong and varied business community. We appreciate our businesses as residents with a long term investment in our community.

If you are an existing business you can renew your business license online. See Business License Online for additional information.

If you’re starting or operating a business in Brentwood, you must obtain a business tax certificate. Even if you conduct business in Brentwood from an office located outside of the city, you are required to obtain a business tax certificate.

  • If you’re operating (or plan to operate) your business from your home in Brentwood, print and complete the Home Occupation Zoning Review Application (HOZR).  Submit this application, along with a completed Business Tax Certificate Application,  to the Community Development Department inside the Permit Center at City Hall.  Once you receive Planning Division's approval, you may pay for the Business Tax Certificate Application (which includes the Home Occupation Zoning Review fee).  All documents will then be submitted from Community Development to the Business License Department for final processing..
  • If you are a residential landlord, please complete the Business Tax Certificate Application – Rental. (HOZR is not required.)
  • All other business types should complete the Business Tax Certificate Application.
  • You may utilize the Business Tax Calculator in order to calculate the tax due.
  • For assistance filling out and submitting the Business Tax Certificate Application, please refer to the 2nd page of the application.

In case of an emergency at a commercial location, it is imperative that the Police Department have current contact information on individuals who have access and are able to respond to your business during that emergency. Please fill out a Business Index Card and submit it with your Business License Application.

Your Business Tax Certificate will be e-mailed within 10 working days.

If you have other questions regarding business license, you can contact us via email at or by calling our office at (925) 516-5480. Our office hours are 8:00 a.m. to 5:00 p.m., Monday thru Friday, except holidays.