Business Tax Certificate

If you will be conducting business within the City of Brentwood and need to apply for a Business Tax Certificate, 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 Tax Certificate online. See Business Tax Certificate 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.

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 Tax Certificate Application.

Your Business Tax Certificate will be emailed within 10 working days.

If you have other questions regarding Business Tax Certificate, 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.