Starting a Business & Freelancing in SF

Guide to registering a business with the SF Treasurer, filing Fictitious Business Names (DBA), LLC vs C-Corp choice, and CA state filings.

4 min read #guides #business #freelancing #taxes
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Operating a business or working as an independent contractor, freelancer, or startup founder in San Francisco requires navigating municipal tax mandates, state incorporation requirements, and local licensing compliance.

Business Entity Structure Matrix

Entity Structure Ideal For Initial Registration Fees Annual CA State Minimum Tax SF City Local License Fee Corporate Complexity
Sole Proprietorship / Freelancer Independent contractors, consultants, side-hustles $0 state filing ($55 FBN if using DBA name) $0 $50 – $500/yr (SF Business Registration based on receipts) Lowest (Reported on personal Form 1040 Schedule C)
California LLC (Limited Liability Co) Local small businesses, agencies, freelancers wanting asset protection $70 CA Secretary of State filing fee $800 / year (Mandatory CA Minimum Franchise Tax) $50 – $500/yr Moderate (Annual Statement of Information required)
Delaware C-Corporation Venture-backed tech startups seeking VC funding $500 (Stripe Atlas / Clerky) + $100 DE state filing $800 / year (CA Franchise Tax) + DE Franchise Tax $50 – $500/yr High (Requires board of directors, stock issuance, 83(b) elections)

1. Mandatory SF Treasurer & Tax Collector Registration

San Francisco enforces strict local registration rules for anyone earning self-employment income within city limits.

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30-Day SF Local Business Registration Mandate

Anyone conducting business as a freelancer, independent contractor, sole proprietor, LLC, or corporation in San Francisco must register with the SF Treasurer & Tax Collector within 30 days of commencing operations in the city.

  • Annual Registration Fees: Local license registration fees range from $50 to $500+ per year, determined by your business activity category and gross receipts earned within San Francisco.
  • Annual Renewal Deadline: Business registration certificates must be renewed annually by May 31.
  • Gross Receipts Tax Exemption: Small businesses with under $2.25 million in total San Francisco gross receipts are exempt from paying the city's Gross Receipts Tax, but must still file an annual gross receipts tax information return and maintain active registration.

2. Fictitious Business Name (FBN / DBA) Registration

If you operate as a sole proprietor or LLC using a trading name other than your legal surname or official registered entity name, California law requires filing a Fictitious Business Name (FBN) statement.

  1. County Clerk Filing: File Form FBN with the San Francisco County Clerk (City Hall, Room 168). The filing fee is $55 for one business name and one registrant.
  2. Mandatory Newspaper Publication: Within 45 days of filing, state law requires publishing the FBN statement in an approved San Francisco newspaper (such as the SF Examiner or Small Business Exchange) once a week for 4 consecutive weeks. Newspaper publication fees range from $40 – $80.
  3. Filing Affidavit: The newspaper files a proof of publication affidavit with the County Clerk upon completion.

3. California Secretary of State Filings & $800 Franchise Tax

Forming a formal entity (LLC or Corporation) requires registering with the California Secretary of State (bizfileOnline.sos.ca.gov).

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California $800 Annual Minimum Franchise Tax

Forming an LLC or Corporation registered in California triggers an automatic $800 annual minimum franchise tax owed to the California Franchise Tax Board (FTB), regardless of whether your business earns profit or operates at a loss. First-year LLCs receive a temporary first-year exemption under state legislation, but corporations owe the $800 tax annually starting in year one.

  • LLC Articles of Organization: File Form LLC-1 with the CA Secretary of State ($70 filing fee).
  • Statement of Information (Form LLC-12): Required within 90 days of initial filing ($20 fee), and every 2 years thereafter.
  • Delaware C-Corp Foreign Qualification: Startups incorporated in Delaware using platforms like Stripe Atlas ($500 setup fee) must register as a "Foreign Corporation" in California if operating from San Francisco ($100 state filing fee + $800 annual CA Franchise Tax).

4. Home Occupation Permits for Remote Workers

If you operate a consulting, freelance, or remote technology business out of your San Francisco residence or rental apartment, you must comply with SF Planning Code Chapter 2 rules.

  • Low-Impact Work: Standard computer-based consulting, software engineering, and digital freelancing are classified as permitted Home Occupations without special public hearings, provided you do not store hazardous materials, display commercial signage, or generate excessive client foot traffic.
  • Commercial Premises: Retail storefronts, restaurants, and physical studios require commercial zoning clearance and specialized building permits.

Step-by-Step Business Launch Checklist

  • Select your business entity type (Sole Prop, LLC, or Delaware C-Corp).
  • Register your entity with the California Secretary of State if forming an LLC or Corporation.
  • Register with the SF Treasurer & Tax Collector within 30 days of starting business activity.
  • File a Fictitious Business Name (FBN) at SF City Hall ($55 fee) and complete 4 weeks of newspaper publication ($40–$80 fee) if using a trade name.
  • Obtain a Federal Employer Identification Number (EIN) for free from the IRS (irs.gov).
  • Set up a dedicated business bank account; see Opening a US Business Bank Account.
  • Review self-employment tax calculations with Paycheck & Self-Employment Taxes.
  • Ensure you have an active SSN or ITIN for tax filings.
  • Calendar the annual $800 CA Minimum Franchise Tax payment and May 31 SF local registration renewal.