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Renew a business license

Find local renewal instructions, account requirements and the relevant license period.

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 · Marin

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California58 counties

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

County government · Marin

Business licensing requirements and referrals depend on the business activity and its location. Read the specific service scope before applying.

Renew Business LicenseOfficial online service

Use the official county portal to renew an existing county business-license account.

Service area: County business-license accounts for unincorporated Marin County. Area details & sources

Source checked October 16, 2026

Reviewed business licensing instructions

Renew Business License

Saved evidence: 9b0d0ff24da22585 · Agent source review