Obtaining a Business License


It is a requirement to obtain a business license if such business is conducted in the unincorporated area of Los Angeles County or in the contract cities of Malibu, Santa Clarita and Westlake Village.

Please contact the Treasurer and Tax Collector's Office for information on filing a business license application:

  • By Telephone: (213) 974-2011
  • Visit the website:
  • In Person: Applications may be filed in person at any of the Business License Offices of the Treasurer and Tax Collector listed below.


Main Office

25 N. Hill St., Room 109

Los Angeles, CA 90012

Phone: (213) 974-2011

Hours: 8:00 a.m. - 5:00 p.m.

Days: Mon - Fri


335A East Avenue K-6

Lancaster, CA 93535

Phone: (661) 723-4492

Hours: 8:00 a.m. - 4:30 p.m.

Days: Tue/Thu/Fri

Santa Clarita

23757 Valencia Blvd.

Valencia, CA 91355

Phone: (661) 253-7342

Hours: 8:00 a.m. - 4:30 p.m.

Days: Mon/Wed