CWCountyWikiIndependent guide to local servicesCalifornia directory
Marin, California · County government

Department of Finance — Central Collections business licenses

Find the local office for a business license or business tax certificate. Check the business activity and place covered by each service.[1]

Source checked October 16, 2026[1]
Go to the official website (opens in a new tab)
Website address
www.marincounty.gov

Opens this office’s own website. CountyWiki does not process applications, take payments or provide personal records.

Contact details & office locations ↓
Business licensing requirements and referrals depend on the business activity and its location. Read the specific service scope before applying.

Online services & information

These links were found on official source pages. Each service is handled by the office.

Unincorporated Marin business-license requirements and tax categories (opens in a new tab)[2]Official instructions

Check the county business-license category and the business location. Receipt-based taxes and special flat-fee categories differ; short-term-rental approvals are separate.

Service area: Business licensing for businesses engaging in business in unincorporated Marin County. [3]

Before you start

Eligibility & access · Short-term rentals
Most short-term-rental operators need the separate STR license before applying for Finance business-license and TOT registration. [19]
Business License Application (opens in a new tab)[4]Online service

Official Finance/Central Collections referral for a new county business-license application.

Service area: County business-license accounts for unincorporated Marin County. [5]

Renew Business License (opens in a new tab)[6]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. [7]

Before you start

Deadlines
The posted annual county renewal date is July 31. [8]
Deadlines · Annual license tax; flat-rate cases have separate rules
The page states delinquency begins August 1, with a 10% monthly penalty capped at 50% of the annual tax. [9]
Update Business License Information (opens in a new tab)[10]Online service

Notify the county of changes to the existing business-license account.

Service area: County business-license accounts for unincorporated Marin County. [11]

Request to Close Business License (opens in a new tab)[12]Online service

Use the official county portal to request closure of the business-license account.

Service area: County business-license accounts for unincorporated Marin County. [13]

Search active county business licenses (opens in a new tab)[14]Online service

Use the official county business-license search and check the account and location covered.

Service area: Records of county business-license accounts for unincorporated Marin County. [15]

Fees

Fees are quoted only when a source document supports the amount and conditions.

ServiceAmountConditions & source
Business-license tax — rental accommodations$15.00per dwelling unit per yearPosted annual business-license amount for the described hotel, motel, apartment, rooming-house, house-rental and vacation-rental categories. Separate STR/TOT requirements may apply.[20]

These are individual fee items, not a quote for your total. Other charges or exemptions may apply; confirm the total with the office.

Forms & documents

Official forms and document pages for this office’s services.

Sources & last checked1 source page · 21 citations

Sources were checked by an AI-assisted research process. A checked website does not mean every service or fee on it has been reviewed.

  1. [1] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Department of Finance Central Collections Business License Business License Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  2. [2] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  3. [3] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  4. [4] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Business License Application
  5. [5] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  6. [6] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Renew Business License
  7. [7] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  8. [8] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Business owners must keep accurate books and records and renew timely their business license by July 31st each year.
  9. [9] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Annual Business License Tax is due and payable in advance of July 31st and is considered delinquent on August 1st. Late payments are subject to 10% penalty per month, not exceed 50% of the tax.
  10. [10] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Update Business License Information
  11. [11] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  12. [12] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Request to Close Business License
  13. [13] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  14. [14] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Search Active Business Licenses
  15. [15] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Every person engaging in business within the unincorporated area of the County must register for a business license and renew it annually.
  16. [16] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Business Licenses 415-473-7045 [Phone]
  17. [17] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    3501 Civic Center Drive Room 202 San Rafael CA 94903
  18. [18] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Mon - Fri: 9:00 am-4:30 pm
  19. [19] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    With few exceptions, STR operators must first obtain a STR License through the Community Development Agency, and then they can apply for a Business License and Transient Occupancy Tax (TOT) Certificate through the Department of Finance.
  20. [20] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    For hotel, motel, apartment, rooming house, house rental, vacation rentals, the annual fee is $15.00 per dwelling unit.
  21. [21] Marin County — business licensing discovery (opens in a new tab)

    Marin County official website · Reviewed business licensing instructions
    Source reviewed October 16, 2026

    View supporting excerpt
    Business License Tax Schedule
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