San Diego, CA Business License Guide

City of San Diego Business Tax Certificate

San Diego calls its general local business tax document a Business Tax Certificate. The City Treasurer says businesses operating in city limits generally must obtain it and self-certify that the activity is allowed in the applicable zone.

There are exceptions. The city’s official exemption list includes several protected activities. One important home-business example is a state-licensed family daycare home for 14 or fewer children, which the city says is exempt from the business tax assessment when the provider supplies the state license. Nonprofits and several other categories also have specific rules.

Use the city’s application instructions. Police-regulated businesses have a separate new-account route. As of October 1, 2026, the city lists $34 annually for 12 employees or fewer, or $125 plus $5 per employee for 13 or more. It also lists a $4 disability-access fee and, since July 1, 2025, a $1.47 annual Minimum Wage Enforcement Fee for each employee working within city boundaries. Late charges and BID assessments may also apply. Verify amounts on the current fee page.

Separate locations and ownership changes

The city requires a separate certificate for each branch or business location in its jurisdiction. A change of ownership requires a new certificate; the old one does not transfer.

San Diego County steps

San Diego County and the City of San Diego are different governments. The county says unincorporated areas do not have a general county business license, but county name filings, health permits, and other activity rules can still apply.

Fictitious Business Name

If an FBN Statement is required, use the Recorder/County Clerk’s current instructions. The county says it must be filed within 40 days after first transacting business under the fictitious name. The current fee is $54 for the first business name and registrant, plus $5 for each additional name or registrant.

The online kiosk can prepare the application and search records, but an original wet-ink signature is still required. The signed statement is filed in person or by mail. Follow the county’s publication instructions when publication is required.

Food, mobile food, temporary events, and body art

Food businesses should use DEHQ’s forms and applications and current fee page. Food and plan-check fees changed in July 2026.

For public temporary food events, use the county Temporary Food Events page. Body-art facilities and practitioners should use the same DEHQ forms page for the current body-art permit and registration path.

California state steps for a San Diego business

State filings sit on top of local rules. They do not replace the San Diego Business Tax Certificate.

Entity filing

LLCs, corporations, and similar entities use the Secretary of State’s Business Entities information and bizfile Online. Effective August 1, 2026, User Access is required for online Statement of Information filings.

Seller’s permit

If you sell or lease tangible personal property normally subject to sales tax, check CDTFA’s seller’s permit guidance and registration page. Registration itself is free. See our seller’s permit vs business license guide for the distinction.

Hiring employees

EDD says a business that hires employees and pays more than $100 in wages in a calendar quarter must register within 15 days. Use EDD’s employer registration. New or rehired employees must be reported to the New Employee Registry within 20 calendar days of starting work.

California employers with one or more employees must maintain workers’ compensation coverage. See the DIR workers’ compensation guide. San Diego’s minimum wage is $17.75 in 2026 and is scheduled to rise to $18.35 on January 1, 2027.

LLC tax and regulated work

FTB says an LLC organized or doing business in California generally pays the $800 annual tax unless an exception applies; use the FTB LLC page. For regulated occupations, use the DCA license search. Contractors should use the CSLB current licensing guidance. Alcohol sellers should start with California ABC’s application path. Covered salons should use the Board of Barbering and Cosmetology applicant information.

Federal steps

Most San Diego businesses should check whether they need an Employer Identification Number. The IRS issues EINs directly for free. Start with the IRS EIN page, not a paid third-party form that looks official.

Beneficial ownership reporting is no longer a filing step for entities created in the United States. FinCEN finalized that domestic-company exemption on August 11, 2026, after the exemption had already been in practical effect under its 2025 interim rule. Certain foreign entities registered to do business in the United States may still have BOI duties. Use FinCEN’s current BOI guidance if that situation applies.

Zoning, home businesses, building, fire, signs, and mobile food

A Business Tax Certificate does not prove that a location is legal for the proposed use. Use the city zoning page and new ZAPP to identify the parcel’s base zone and mapped constraints, then check the applicable use rules.

Home-based businesses

San Diego Municipal Code section 141.0308 treats home occupations as businesses conducted by residents at home and allows them as a limited use in specified zones, subject to operating standards. Certain deviations can require a Neighborhood Use Permit. A compliant home occupation may not need a separate land-use permit, but most ordinary home businesses still follow the Business Tax Certificate rule unless a specific exemption applies.

For a plain-English overview of this local land-use concept, see our home occupation permit guide.

Building, occupancy, fire, and signs

Before a storefront build-out, use the city’s permits and approvals. A Certificate of Occupancy can be required for a new nonresidential building, first tenant improvement in a shell building, or a change in occupancy classification. Check the current Certificate of Occupancy bulletin. Regulated signs may need a Sign Permit, and fire-protection-system work may need a Fire Permit.

Police-regulated and short-term rental activities

Some businesses need a Police Permit in addition to the Business Tax Certificate; start with Police Regulated Business Activities. Short-term rentals use the separate City Treasurer STRO licensing system. The city also posts Police Permit requirements, forms, and fees.

Mobile food trucks

The city’s July 2026 Mobile Food Truck bulletin says operators need a county Public Health Permit and valid city Business Tax Certificate, subject to exemptions. Most operations are exempt from the separate city Mobile Food Truck Permit, but private-property operations need property-owner authorization and some locations still require the permit.

Where the city permit is required, the current bulletin lists a $737 General Plan Maintenance fee, $12.16 mapping fee, and $706.27 plan-check fee. These are separate from county health and city business-tax costs. See our food truck license guide for the wider checklist.

Costs you can plan for

Do not budget only for the Business Tax Certificate. First-year costs can include local tax, county name filing, publication, health permits, plan checks, construction permits, fire or sign permits, state entity fees, insurance, and payroll setup. Use current agency schedules because several San Diego development and health fees changed during 2026.

Real-world examples

What to do if this doesn’t work

If a portal will not accept the application, the address is hard to classify, or agencies appear to conflict, identify which government controls the issue. Use Development Services for zoning and building questions, the City Treasurer for the Business Tax Certificate, County DEHQ for health permits, the Recorder/County Clerk for FBN filings, CDTFA for seller’s permits, EDD for employer registration, and the relevant state board for regulated work.

A compact compliance checklist

• Confirm city limits and local jurisdiction.
• Check the new ZAPP and zoning rules before signing a lease or operating from home.
• Apply for the city Business Tax Certificate unless a verified exemption applies.
• File a Fictitious Business Name Statement when California rules require it.
• Form a state entity only if it fits your business plan; then set up required bizfile access for online filings.
• Get a seller’s permit when your sales require one.
• Check county health routes for food, mobile food, temporary food, body art, or other covered activities.
• Check the correct state licensing board for regulated work.
• If hiring, register with EDD when the threshold is met, report new hires, and arrange workers’ compensation.
• Check building, occupancy, fire, and sign approvals before build-out or opening.
• Get an EIN directly from the IRS when required.
• Calendar renewals, tax due dates, inspections, and known future changes such as the January 1, 2027 San Diego minimum-wage increase.

About BusinessLicenseGuide.com

BusinessLicenseGuide.com is a plain-English licensing guide for ordinary U.S. small-business owners. We are not a government agency, law firm, CPA firm, filing service, or paid compliance company. Our goal is to help you find the right agency, understand the layers, and avoid common filing mistakes.