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Check or apply for a business license

Check local business license or business tax certificate requirements, the right authority and application options.

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.

3 guides with reviewed service links · San Diego

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Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties

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

County government · San Diego

County of San Diego — business-license and permit guidance

Official county guidance and municipality referrals; this page is not a license-issuing department.

Unincorporated-area business rules and city license referralsOfficial instructions

The county states no business license is needed in its unincorporated areas, while other permit rules may still apply. Use the county page to find city licensing and county permit departments.

Source checked October 16, 2026

San Diego County official website · San Diego County business-license guidance (opens in a new tab)

Reviewed business licensing instructions

You do not need a business license in unincorporated areas of San Diego County. However, you may need to follow other rules and permit requirements.

Saved evidence: e4dc49afc8e05ea0 · Agent source review

Full guide, contact details & sources →

City government · San Diego

Chula Vista — Finance Department — Business Licenses

City of Chula Vista business licensing or tax certificates.

Check city business-license requirementsOfficial instructions

Requirements follow business activity in Chula Vista, including some out-of-city contractors, deliveries and temporary presence. A home business also needs a Home Occupation Permit.

Service area: City of Chula Vista business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

Chula Vista municipal government · Chula Vista — business licensing discovery (opens in a new tab)

Reviewed business licensing instructions

Anyone conducting business in the City of Chula Vista must have a business license. Doing business in the city is defined as being located in or entering into the city to conduct business.

Saved evidence: 05cffc0ccbfc6682 · Agent source review

Apply online for a city business licenseOfficial online service

Follow the city’s official referral to the online application. Mail and Finance front-counter submission are also listed. Prepare the required business information and any Home Occupation Permit.

Service area: City of Chula Vista business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

Chula Vista municipal government · Chula Vista — business licensing discovery (opens in a new tab)

Reviewed business licensing instructions

Save time by applying for a New Business License Online

Saved evidence: 05cffc0ccbfc6682 · Agent source review

Review city business-license taxes and feesOfficial instructions

Review the entire city fee schedule to identify the categories that apply; this directory has not calculated the amount due for your business.

Service area: City of Chula Vista business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

Chula Vista municipal government · Chula Vista — business licensing discovery (opens in a new tab)

Reviewed business licensing instructions

Business License Tax and Fee Information

Saved evidence: 05cffc0ccbfc6682 · Agent source review

Find current Finance contacts and business hoursOfficial instructions

Open the city Finance contact and hours page before visiting. Generic City Hall footer information is not substituted for the licensing counter.

Service area: City of Chula Vista business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

Chula Vista municipal government · Chula Vista — business licensing discovery (opens in a new tab)

Reviewed business licensing instructions

Have Questions? Click here for our most up to date contact info and business hours.

Saved evidence: 05cffc0ccbfc6682 · Agent source review

Full guide, contact details & sources →

City government · San Diego

San Diego — Office of the City Treasurer — Business Tax

City of San Diego business licensing or tax certificates.

Check city Business Tax Certificate requirementsOfficial instructions

The city issues a Business Tax Certificate as acknowledgement of tax payment. Check other required zoning, police, health, state and activity approvals separately.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

San Diego government · San Diego — Business Tax Certificate (opens in a new tab)

Reviewed business licensing instructions

All businesses operating in the City of San Diego are required to register for a Business Tax Certificate.

Saved evidence: 80ea55f5ae9f2922 · Agent source review

Apply for a city Business Tax CertificateOfficial online service

Use the current city-referred application portal. Registration is required for the online service; mail and in-person channels are also described on the city instructions page.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

San Diego government · San Diego — Business Tax Certificate (opens in a new tab)

Reviewed business licensing instructions

Apply for a New Business Tax Certificate Online Now

Saved evidence: 80ea55f5ae9f2922 · Agent source review

Review city Business Tax rates, employee charges and penaltiesOfficial instructions

Check employee-count categories, the additional state and minimum-wage-enforcement charges, late penalties and district assessments. These components do not calculate your final bill.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

City of San Diego — Office of the City Treasurer · San Diego — Business Tax fees (opens in a new tab)

Reviewed business licensing instructions

Business Tax Rates and Fees

Saved evidence: f2eca6218fa67d3b · Agent source review

Contact the city Business Tax ProgramOfficial instructions

Check separate telephone hours, lobby walk-in days and appointments before visiting. Mailing instructions differ across the city pages; confirm the destination with the programme.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

City of San Diego — Office of the City Treasurer · San Diego — Business Tax contact (opens in a new tab)

Reviewed business licensing instructions

Contact the Business Tax Program

Saved evidence: 6da75a5648bad708 · Agent source review

Book a city Business Tax registration appointmentOfficial online service

Use the official appointment referral for in-person registration or the other listed programmes.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

San Diego government · San Diego — Business Tax Certificate (opens in a new tab)

Reviewed business licensing instructions

Schedule an appointment

Saved evidence: 80ea55f5ae9f2922 · Agent source review

Review city Business Tax exemption informationOfficial instructions

Open the city exemption information and confirm whether your business qualifies; no blanket exemption or zero-dollar total is inferred here.

Service area: City of San Diego business activity; city programme, not county-wide licensing. Area details & sources

Source checked October 16, 2026

San Diego city service · San Diego — Business Tax and rental unit tax (opens in a new tab)

Reviewed business licensing instructions

Business Tax Exemptions

Saved evidence: f3587c1cc03bff6a · Agent source review

Full guide, contact details & sources →