Dallas County, TX Business License Guide: Dallas, Suburbs, and County Rules

Dallas County business changes: May 1–October 2, 2026

• July 1 — mobile food: Texas moved mobile food vendor licensing to DSHS. Local Dallas County health permits are no longer the statewide operating license, although local fire, zoning, parking, event, and site rules can remain.
• September 29 — SOSPortal: the Texas Secretary of State launched SOSPortal, replacing SOSDirect and SOSUpload for online business filings, searches, and orders.
• June 1 — City of Dallas inspections: projects needing the listed plumbing and mechanical rough or final inspections must schedule the paired inspections together for the same day.

The stronger explanation of the unincorporated-area Operational Permit and the Texas no-impact home-business protection are older current-law corrections, not new May–October changes.

City or municipal layer

Most Dallas County business locations are inside municipalities. If your address is in Dallas, Garland, Irving, Grand Prairie, Mesquite, Richardson, Carrollton, Farmers Branch, DeSoto, Duncanville, Lancaster, Cedar Hill, University Park, Highland Park, Sachse, Coppell, Rowlett, or another city, start with that city for local approvals.

Depending on the activity and premises, the city layer can include zoning, occupancy, building, fire, signs, health, home-business rules, vendor permits, short-term-rental registration, alarms, or special licenses. For a Dallas address, use the city’s Zoning Resources and current map tools.

City of Dallas

The City of Dallas Certificate of Occupancy page says a CO is generally required to use or change the use of a building, part of a building, or land, except for single-family and duplex uses. A new CO can be triggered by first use, change of use, change of tenant, or changed floor area. Applications run through DallasNow.

Dallas also maintains activity-specific licenses and collections. Its Special Collections page lists items such as amusement centers, billiard halls, coin-operated machines, dance halls, precious-metal vendors, sexually oriented businesses, alarms, and alcohol-related local items. These are not a universal license for every business.

For projects using the listed plumbing and mechanical inspections, the June 1, 2026 rule requires the related rough inspections together and the related final inspections together. For more local detail, see BLG’s Dallas, TX business license guide.

Suburbs

Use the municipality where the property is located. A city permit is not replaced by a Dallas County permit, and the DUAS Operational Permit is not a substitute for city approval.

DBA and assumed name layer

In Texas, a DBA is usually an assumed name. It identifies the name used by a person or entity. It does not create an LLC, approve a location, issue a business license, grant trademark rights, or register sales tax.

County-level filers

The Texas Secretary of State’s Name Filings FAQ says county filing applies to categories such as sole proprietorships, general partnerships or joint ventures, estates, real estate investment trusts, and other persons outside the state-filing categories. For Dallas County, use the Clerk’s Assumed Names/DBA Procedures and fee page.

Secretary of State filers

Corporations, LLCs, limited partnerships, professional associations, LLPs, and foreign filing entities generally file assumed names with the Secretary of State. Current state guidance says these entities are not also required to file the assumed name with the county under HB 3609, effective September 1, 2019.

One Dallas County FAQ still contains older corporation language. Dallas County’s e-recording notice and the current state guidance reflect the later law. For filing-entity scope, use the Secretary of State guidance and Form 503.

Texas state registrations and taxes

The Texas layer is separate from city and county approvals. A business can have no universal state license and still need entity, tax, employer, or professional filings.

No general Texas business license

The Texas Business Permit Office says Texas does not require a general business license, but many activities require specific permits or licenses. The state’s Start a Business in Texas page is a useful broad checklist.

Entity formation and SOSPortal

LLCs, corporations, limited partnerships, and other Texas filing entities use the Secretary of State. On September 29, 2026, SOSPortal replaced SOSDirect and SOSUpload for online business filings, searches, and orders. Start from the current business-services page.

Sales and use tax

If you sell taxable property or services, check the Comptroller’s Sales and Use Tax Permit FAQ. The permit has no application fee, although a security bond can be required in some cases. Apply through the Texas Online Tax Registration Application.

If you hire

Check TWC unemployment-tax registration when applicable. Separately, the Texas Attorney General requires new hires and rehires to be reported within 20 calendar days; use New Hire Reporting.

Professional and industry licensing

Check the TDLR programs list for regulated work such as electricians, air conditioning and refrigeration, barbering and cosmetology, massage, towing, and used automotive parts recycling.

For more state detail, see BLG’s Texas business license guide.

Zoning, home occupation, building/fire, health, food, and industry permits

For many businesses, “licensing” is a stack of approvals that changes with the address, premises, and activity.

Zoning and land use

Inside a municipality, check city zoning before signing a lease. In unincorporated Dallas County, ordinary municipal zoning does not apply, but county rules can cover floodplain development, subdivisions, septic systems, nuisance conditions, construction, communication structures, and outdoor businesses. See the county’s Zoning and Other Related Regulations.

Home-based businesses

Texas Local Government Code Section 229.902 limits municipal regulation of a qualifying no-impact home-based business. A municipality may not prohibit such a business or require a license, permit, or other approval merely to operate it. The definition includes limits involving occupancy, on-street parking or substantial traffic, street visibility, and noise.

Cities can still enforce applicable fire, building, health, sanitation, traffic, waste, pollution, and noise rules. Private HOA and deed restrictions remain possible, and short-term rentals are treated separately. The statute addresses municipalities; an unincorporated Dallas County home should still be checked with DUAS for the county Operational Permit and other applicable rules.

Storefronts and tenant spaces

Confirm use approval before paying for build-out. Inside Dallas, a CO can be needed for first use, change of use, change of tenant, or changed floor area. In unincorporated territory, check the DUAS Operational Permit plus any development, building, or fire approvals.

Separate the state trade license from job-site permits and from the business-location rules for an office, yard, warehouse, or home base. A contractor working across Dallas County may need permits from several municipalities even though the company has one main business address.

Contractors and trades

Short-term-rental hosts should use the rules of the municipality where the property is located. City of Dallas registration and hotel-occupancy-tax rules do not automatically apply in every Dallas County suburb. An unincorporated property should be checked separately for county requirements, Texas tax duties, and private lease, deed, HOA, and insurance restrictions.

Short-term rentals

• Is the proposed use allowed at the address?
• Does a new tenant or changed use require occupancy approval?
• Will remodeling, signs, plumbing, electrical, ventilation, or accessibility work need permits?
• Is fire review or inspection required before opening?

Fixed food establishments

Short-term-rental hosts should use the rules of the municipality where the property is located. In Dallas, use the city’s Short-Term Rentals page and Hotel Occupancy Tax resources. Those Dallas requirements do not automatically apply in every suburb. An unincorporated property should be checked separately for county requirements, Texas taxes, and private lease, deed, HOA, and insurance restrictions.

Mobile food vendors

Beginning July 1, 2026, DSHS became the statewide mobile food vendor licensing authority. Use the DSHS Mobile Food Vendors page for the license type, application, inspection process, and current fees.

The statewide license does not erase all local rules. DSHS and Dallas County both note that fire, zoning, parking, events, and other local site rules can still apply.

Alcohol and regulated work

Alcohol has a state TABC layer plus applicable local zoning, certification, and fees. Contractors, salons, massage, towing, used-parts recycling, child care, transportation, and other regulated work can have separate licensing paths. Search for the actual activity, not only “business license.”

Common Dallas County business situations