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Close or update a business license

Find instructions for closing a license or reporting ownership, address or business changes.

Before you start

Start with where your business is located and where it will operate. A county license may apply only to unincorporated areas or specific activities; cities can have their own requirements.
Some county offices provide guidance or referrals and do not issue a general business license. Read the entry before choosing an application.
A business license or tax certificate, an FBN/DBA filing, business entity registration and a professional license serve different purposes. Zoning, health and other activity permits may also apply. Business stormwater registration is a separate local programme where required.
Check the license period, renewal date and rules for changes in ownership or location. A renewal may not cover a move or a new owner. Fees and application steps depend on the license category.

1 guide with reviewed service links · San Diego

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U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

City government · San Diego

San Diego — Office of the City Treasurer — Business Tax

City of San Diego business licensing or tax certificates.

Update an existing city Business Tax accountOfficial instructions

The city FAQ describes online updates with Account Number and PIN, or requests to the Business Tax team. A change of owner requires a new certificate.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

City of San Diego — Office of the City Treasurer · San Diego — Business Tax faq (opens in a new tab)

Reviewed business licensing instructions

How can I make a change to my existing Business Tax account?

Saved evidence: 8bf6a2e6c30630d3 · Agent source review

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