Gwinnett County, GA Business License Guide: County and City Rules

Gwinnett County business license and occupational tax layer

Gwinnett County’s local business license page says the county Licensing and Revenue Office issues Occupational Tax Certificates, also known as business licenses, for businesses located in unincorporated Gwinnett County. The same county page tells businesses located inside city limits to contact the city government where the business is located.

When the county layer usually applies

Start with Gwinnett County Licensing and Revenue if your physical business address, home office, warehouse, commercial suite, or regular base of operations is outside city limits. The county layer may apply to storefronts, offices, contractors based from home, online sellers, mobile service businesses, and other businesses that are physically based in unincorporated Gwinnett.

For a new county occupational tax certificate, Gwinnett County directs applicants to its Business License page and Business Tax Portal. The county portal is also used for renewals, printing the most recent certificate, closing an account, and some tax-related business services.

Items the county may ask about

Do not assume the occupational tax certificate is only a name-and-fee form. Depending on the business, Gwinnett County may ask for supporting documents or approvals before issuing the certificate. Common examples include:

• legal presence or SAVE-related documents for individual applicants, when required;
• E-Verify affidavit requirements for certain private employers;
• a home-based business disclosure for a qualifying home business;
• a certificate of occupancy, tenant name change, or other occupancy approval for commercial locations;
• state professional license information if the occupation is regulated;
• Georgia Department of Revenue sales and use tax registration for sellers of goods;
• health, food, agriculture, or other agency approvals for regulated activities;
• special use permit review for certain uses, such as some auto-related, care, childcare, or other uses listed by the county.

Renewals, changes, and account updates

After a county occupational tax certificate is issued, do not assume it follows the business forever without updates. Contact Gwinnett County Licensing and Revenue if the business changes location, ownership, legal structure, tax identification number, or closes. Renewal rules, late penalties, forms, and fees can change, so use the official county page and portal before paying.

City and municipal business license layer

Gwinnett County includes many municipalities. If your address is inside a city, that city may require its own occupational tax certificate, business license, zoning approval, home occupation approval, certificate of occupancy, sign permit, alcohol license, or other local approval.

Gwinnett County lists these municipalities: Auburn, Berkeley Lake, Braselton, Buford, Dacula, Duluth, Grayson, Lawrenceville, Lilburn, Loganville, Mulberry, Norcross, Peachtree Corners, Rest Haven, Snellville, Sugar Hill, and Suwanee. Some of these cities are only partly in Gwinnett County, and their city boundaries do not always match postal addresses.

Examples of city-level rules

City requirements vary, but official city pages show why the address check matters:

• Lawrenceville business licensing says businesses must be within the City of Lawrenceville city limits and that a Lawrenceville mailing address is not enough.
• Duluth occupational tax information says every business in the city is required to apply for an occupational tax certificate and renew annually to operate in city limits.
• Norcross business license information says the city processes business license applications for businesses inside Norcross corporate city limits and directs businesses outside city limits to Gwinnett County Licensing and Revenue.
• Peachtree Corners business license information uses the occupational tax certificate terminology and reminds businesses to confirm zoning before leasing or buying a location.

City of Mulberry note

Gwinnett County’s business license page includes a notice that, effective January 1, 2025, the City of Mulberry is responsible for planning and zoning, code enforcement, permitting, and business licensing within Mulberry city limits, subject to court direction noted on the county page. If your business may be in Mulberry, confirm the current process with the city and county before filing.

What to ask the city

If your address is inside a city, ask that city whether you need:

• a city occupational tax certificate or business license;
• zoning approval for your exact business activity;
• a home occupation permit or acknowledgement;
• a certificate of occupancy or tenant change approval;
• fire inspection, building permit, sign permit, grease trap, alcohol, vending, food truck, or other local approval;
• proof of county, state, or health department approvals before the city certificate is issued.

DBA, trade name, and business name layer

A trade name, assumed name, or DBA is not the same thing as a business license. It also is not the same as forming an LLC or corporation.

Georgia’s official DBA guidance says a trade name is filed with the Clerk of Superior Court in the county where the business is located. In Gwinnett County, the Gwinnett County Clerk of Superior Court trade name page explains that Georgia law requires certain persons, firms, or partnerships doing business under a name that does not disclose ownership to register the trade name and publish notice in the county’s legal organ once a week for two weeks.

What a trade name filing does

• It gives public notice that a business is operating under a particular name.
• It may be required before some banks, cities, counties, or agencies accept the name on other records.
• It is separate from city or county occupational tax certificate approval.

What a trade name filing does not do

• It does not form an LLC or corporation.
• It does not create liability protection.
• It does not guarantee the county or a city will issue a business license.
• It does not guarantee zoning approval.
• It does not fully protect a brand name the way trademark law may.

If you are forming an LLC, corporation, or limited partnership, that is handled separately through the Georgia Secretary of State Corporations Division. A business may need both an entity filing and a local occupational tax certificate, depending on its structure and location.

Georgia state registrations, taxes, and professional licenses

Georgia does not reduce every business requirement to one statewide “business license.” The state layer depends on what you are forming, what you sell, whether you have employees, and whether your occupation or product is regulated.

Georgia Secretary of State entity filing

If you form a Georgia LLC, corporation, or limited partnership, or if a foreign entity registers to do business in Georgia, the filing is handled by the Georgia Secretary of State Corporations Division. This filing is separate from the local occupational tax certificate. Forming an LLC does not automatically give you permission to operate at a Gwinnett County address.

Georgia Department of Revenue tax registration

The Georgia Department of Revenue tax registration page explains that a business conducting business in Georgia may need one or more tax-specific identification numbers, permits, or licenses. Common state tax accounts include:

• Sales and use tax: often relevant when selling taxable goods or certain taxable services.
• Withholding tax: often relevant when hiring employees.
• Alcohol or tobacco accounts: relevant for businesses selling regulated products.

For retail alcohol licensing, Georgia uses a Centralized Alcohol Licensing Portal, but local approval can still be part of the process. Alcohol businesses should check the city or county local alcohol license rules before assuming state filing is enough.

Georgia Department of Labor employer registration

If you have employees, check the Georgia Department of Labor employer registration process to determine whether your business is liable for unemployment insurance taxes and must set up an employer account.

Professional and industry licenses

Some businesses need a professional or occupational license from a state board or another state agency before they can legally offer services. The Georgia Secretary of State Professional Licensing Boards Division covers many boards, including boards related to contractors, electrical contractors, plumbers, conditioned air contractors, cosmetology, barbers, massage therapy, used motor vehicle dealers, and other regulated fields. Other fields may be regulated by agencies outside the Secretary of State.

Federal EIN and federal tax items

Some businesses also need a federal employer identification number, federal tax accounts, or federal registrations. The IRS EIN process is separate from Georgia entity formation, local business licensing, and sales tax registration. If you are unsure whether you need an EIN, check the IRS employer identification number page or ask a tax professional.

Zoning, home occupation, building, fire, health, food, and industry permit layers

Many business problems happen because the owner files the name and tax forms before checking the physical location. In Gwinnett County, the local business license layer often depends on zoning, occupancy, building, fire, health, and regulated-business approvals.

Zoning in unincorporated Gwinnett County

For unincorporated properties, Gwinnett County zoning and development rules are in the Unified Development Ordinance. County zoning can affect whether your use is allowed, whether a special use permit is needed, whether signs or outdoor storage are allowed, and whether a home occupation can operate from a residence.

If the property is inside a municipality, city zoning rules apply instead. Contact that city’s planning or zoning department before relying on county zoning information.

Home-based businesses

Home businesses need special care because residential zoning often limits business activity. Gwinnett County’s home occupation disclosure for unincorporated properties includes limits on items such as who can operate the business from the home, on-premises sales, personal-service client visits, group assembly, exterior evidence of the business, traffic, parking, storage, the amount of dwelling space used, and business vehicles. Deviations may require a special use permit.

City home occupation rules may be different. If your home is inside a city, check that city’s home occupation rules, not just the county’s page.

Commercial storefronts, offices, warehouses, and tenant spaces

Commercial businesses should confirm that the location is approved for the exact use. A storefront, office, warehouse, salon, restaurant, gym, studio, daycare, personal care home, or contractor office may need zoning review, a certificate of occupancy, a tenant name change, building permits, fire review, health review, sign approval, or other inspections.

Gwinnett County Building Services reviews plans, issues permits, and performs inspections for many construction and land development matters in unincorporated Gwinnett County. The county uses the ZIP Portal for many planning and development applications and inspections. If your project is inside a city, ask the city which building and fire offices apply.

Code enforcement

Gwinnett County Code Enforcement handles code issues for unincorporated areas. The county states that it does not address properties inside city limits, and city residents should contact their city. Code issues can include signage, zoning, land use, property maintenance, noise, business regulations, and operating a business without the required occupational tax certificate.

Food service, restaurants, mobile food, temporary food, body art, pools, hotels, and septic

Food and health permits depend heavily on the type of food and the way it is sold.

• Restaurants, food service, temporary events, mobile food, and pop-up food service: check GNR Public Health restaurant regulations and forms and the Georgia Department of Public Health food service page.
• Environmental health facilities: GNR Public Health Environmental Health covers regulated facilities such as food service establishments, tourist accommodations, pools and spas, body art studios, and septic-related items.
• Retail food sales, packaged foods, groceries, bakeries, food processing, and some mobile or permanent off-premises food sales: check the Georgia Department of Agriculture food establishment license information.
• Cottage food and home-kitchen food: check the Georgia Department of Agriculture cottage food page. Georgia cottage food rules changed effective July 1, 2025, so use the current state page instead of older summaries.

A food business may need more than one approval. For example, a food truck may need state or local health approval, a local occupational tax certificate, zoning or vending location approval, commissary documentation, fire safety review, and sales tax registration.

Alcohol, tobacco, and regulated products

Alcohol and tobacco businesses should expect state and local review. For alcohol, start with the Georgia Department of Revenue alcohol licensing information and ask the city or county whether a local alcohol license, background checks, distance rules, zoning approval, or additional documents are required. Do not sign a lease or buy inventory until the local approval path is clear.

Contractors, trades, and construction-related businesses

Contractors and trades should check both the state professional licensing layer and the local permit layer. A state contractor or trade license does not automatically replace a local business license, building permit, subcontractor registration, inspection, or certificate of occupancy. Local requirements may depend on whether the work is in unincorporated Gwinnett County or inside a city.

Short-term rentals and lodging

Short-term rental rules can change quickly and may depend on whether the property is in a city or unincorporated Gwinnett County. Before listing a property, ask the correct local government about zoning, business licensing or occupational tax, hotel-motel excise tax, safety inspection, local contact rules, homeowners association limits, and platform reporting obligations.