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Apply for a Business Tax Certificate

All businesses operating in the City of San Diego are required to apply for a Business Tax Certificate no later than 15 days from the business start date to avoid late fees.

Business Tax applications may be submitted electronically, by mail or in person. Applications submitted by mail or electronically will be assessed $52 which covers the $34 Business Tax and $17 zoning fee and $1 SB-1186 State mandated fee.

Please allow up to four (4) weeks for receipt of your Business Tax Certificate. You will be notified by mail if additional taxes or fees are due, such as: Business Improvement District Assessments; large Business Tax (13 or more employees); late fees; or if additional information is required.

  1. Business Tax online applications may be submitted 24/7. You must register for a username and password prior to using this service. Payment types accepted include Credit Card (MasterCard, Visa), ACH checking, and ACH savings.
  2. Click on the links below to download a Business Tax application.
    To submit by mail please include a check for $52 made payable to City Treasurer and send to:

    Office of the City Treasurer
    Business Tax Program
    PO Box 122289
    San Diego, CA 92112-2289

    To deliver in person please visit our downtown location located at:
    Civic Center Plaza Building
    1200 Third Ave., First Floor

  3. For questions, call 619-615-1500 or email