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: ttc.lacounty.gov

  • In Person: Applications may be filed in person at any of the following Business License Offices of the Treasurer and Tax Collector:
Main Office

225 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

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   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

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Santa Clarita

    23757 Valencia Blvd., Valencia, CA 91355    
Phone: (661) 253-7342
Hours: 8:00 a.m. - 4:30 p.m.
Days: Mon/Wed

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