County of Marin Business License Tax Marin County Ordinance 3042 was enacted by the Marin County Board of Supervisors in Fiscal Year 1991-92. The ordinance requires that every person engaging in business within the unincorporated area of the County must register for a business license and renew their business license annually by June 30th. In 2018, an online portal was introduced to the public to register and renew business license online.
- Ordinance 3705: County of Marin Community Development Agent (CDA) -Just Cause for Eviction
- Ordinance 3695: CDA for Living Accommodation
New Business Licenses Issued by Quarter
The measure is based on a dataset that includes the number of new business licenses issued in unincorporated Marin County by quarter.
Active Business License
This measure is based on a dataset that includes active business licenses per quarter. This information is collected to keep track of the number of businesses active in the unincorporated areas of Marin County.
Active Business License in Unincorporated Marin County
This map shows the active business licenses in the Unincorporated County of Marin. It allows you to filter by business type.
Business License unit is located at the Marin County Civic Center: 3501 Civic Center Dr. San Rafael - Room 217
In office assistance is available by appointments.
Phone Number: (415) 473-7045
Email: Business License
To Register for a Business License or renew annually visit:
Business License Webpage:
For additional resources are available on the Business License website.