Texas county business license guide
Last updated: October 5, 2026. Next review: January 3, 2027.
Starting a business in Collin County usually means checking more than one government layer. Businesses may be inside cities such as Plano, Frisco, McKinney, Allen, Wylie, Prosper, Celina, Melissa, Anna, or another municipality, or in unincorporated Collin County. The practical question is: “Which government controls my exact address and activity, and what approval does it require?”
Bottom line
Collin County does not operate one countywide general business-license system that every business must buy into before opening. Texas also does not require one general statewide business license. That does not mean every business is license-free.
Inside an incorporated city, the city usually controls zoning, occupancy, building, signs, fire review, home-business rules, and many local permits. In unincorporated Collin County, Development Services, the Fire Marshal, Environmental Health, Engineering, and other county offices may become the main local layer. Some county functions also apply in selected cities.
A DBA, LLC filing, EIN, sales tax permit, certificate of occupancy, food permit, professional license, and fire or building approval are different things. One does not automatically replace another.
Collin County business changes: May 1–October 2, 2026
- Mobile food licensing changed statewide on July 1. Texas DSHS now licenses mobile food vendors statewide. Before July 1, vendors generally used local health-department licenses in each jurisdiction. Cities and counties can still enforce other local rules such as zoning, approved locations, fire and life safety, traffic, noise, and event requirements. Use the Texas DSHS Mobile Food Vendors page for the current license path.
- Frisco added a technology fee effective August 1. Frisco says a 6% technology fee now applies to permits, projects, licenses, and other submittals processed through its land-development and permitting system, with limited exclusions. Check the current Frisco permit page before budgeting for a filing.
- Texas launched SOSPortal on September 29. The Secretary of State says SOSPortal replaced SOSDirect and SOSUpload for business filings, orders, and searches. If an old instruction tells you to use SOSDirect for a current business filing, start instead from the Texas Secretary of State Business Services page.
- Local sales-tax changes also matter. Weston adopted an additional city sales/use tax effective July 1, bringing the total rate shown by the Comptroller to 7.75%. The Comptroller also lists October 1 annexation-related tax entries for Anna, Lavon, McKinney, and Parker, plus an Anna disannexation. Near a boundary, use current address and tax-rate tools rather than a ZIP-code assumption.
Start here: check whether your address is inside a city
Before you file, pay, sign a lease, or buy equipment, identify the government that controls the property.
- Use the Collin County GIS/Rural Addressing page and county mapping tools to check the property and nearby city boundaries.
- Confirm whether the address is inside incorporated city limits, in unincorporated Collin County, or in a city’s extraterritorial jurisdiction (ETJ). A mailing address or ZIP code is not enough.
- If the property is inside a city, start with that city’s planning/building/permitting offices for zoning, occupancy, building, sign, fire, and local activity questions.
- If the property is outside city limits, review Collin County Development Services and Fire Marshal requirements. ETJ property can involve both county permitting and city subdivision or verification steps.
- Then add the Texas layer for entity filings, assumed names, taxes, professional licenses, food or alcohol regulation, and employer duties.
For the statewide framework, see our Texas business license guide.
City vs. county in Collin County
Collin County is not one licensing area. A Plano storefront, Frisco food truck, McKinney home business, and rural warehouse can follow different local paths.
Inside city limits: the city normally handles zoning, allowed use, occupancy, building, signs, fire review, and many business-specific rules. Food-health jurisdiction varies.
In unincorporated Collin County: county offices can handle development permits, commercial fire review, OSSF/septic matters, floodplain and engineering issues, and certain environmental-health permits. Collin County states that it does not have general zoning restrictions in unincorporated areas except for specific regulated categories, including sexually oriented businesses, salvage/junk yards, and animal slaughter operations. That is not the same as saying rural property is unregulated.
In an ETJ: “outside city limits” does not always mean only the county matters. City subdivision or verification steps can overlap with county development, fire, septic, floodplain, or other requirements.
Collin County business license, tax, and permit layer
Current county sources point to a collection of specific county functions rather than one countywide general business license.
| Issue | What Collin County currently does | What you should do |
|---|---|---|
| General business license | No single countywide general license for every business was found in the county’s current business-facing permit structure. | Identify the city or unincorporated location and then check the approvals tied to the activity and premises. |
| DBA / assumed name | The County Clerk handles unincorporated assumed-name filings for business types that file at county level. | First determine whether your structure files with the county or the Texas Secretary of State; see the DBA section below. |
| Fixed food and temporary food | Collin County Environmental Health currently serves unincorporated areas plus Wylie, Melissa, Lowry Crossing, Weston, Josephine, and Farmersville for the food-service functions described on its official page. | Use the Collin County Food Service and Health page if your fixed or temporary food operation is in one of those areas. Otherwise use the city’s health route. |
| Mobile food | State law changed the license layer on July 1, 2026. DSHS now issues the statewide mobile-food-vendor license. | Use DSHS for the MFV license, then separately check the city/county location, fire, event, traffic, and other local operating rules. |
| Commercial fire review | The Collin County Fire Marshal says it inspects commercial businesses, high-hazard operations, and fire systems in unincorporated rural areas. | Use the Fire Marshal commercial applications page and Citizen Self-Service path when the county has jurisdiction. |
| Development / unincorporated property | County development permits can apply to projects that disturb ground or add building footprint, and ETJ-related steps can also matter. | Review Development Services FAQs before construction, change of use, site work, or a rural commercial project. |
| OSSF / septic | Collin County is a permitting authority for many on-site sewage facilities outside city limits and can have a role in some incorporated areas depending on the authorized-agent arrangement. | Confirm OSSF jurisdiction before installing, changing, or relying on a private septic system for a business site. |
City and municipal layer: Plano, Frisco, McKinney, Allen, and other cities
Inside a municipality, the city can be the most important local permit layer. Do not stop after checking Collin County.
Plano
Plano routes businesses to occupancy, commercial, sign, alcohol, food, alarm, and other city approvals. Before taking a space, start with Plano’s Certificate of Occupancy page and Commercial Permits page. Environmental Health still regulates fixed food establishments, but local mobile-food permits ended when the DSHS system took effect July 1.
Frisco
Frisco routes commercial building, occupancy, sign, fire, food, and related applications through its development systems. Use Apply for Commercial Permits and Plans & Permits. A 6% technology fee applies from August 1, 2026 to covered land-development and permitting submittals, with limited exclusions.
McKinney
McKinney uses Citizen Self-Service for many development and building actions. Its Building Inspections page covers commercial permits, occupancy, inspections, signs, contractor registration, and codes. Local mobile-food permits ended July 1, but zoning, locations, fire/life safety, traffic, noise, and other local rules remain.
Allen
Allen businesses should check planning, building, fire, signs, health, and activity-specific rules before opening or altering a space. Official starting points retained from the live guide are Codes & Ordinances and Commercial Services.
Other Collin County cities
Wylie, Prosper, Celina, Melissa, Anna, Princeton, Murphy, Lucas, Parker, Farmersville, and other cities can have their own land-use, occupancy, building, fire, sign, event, and business-specific processes. Do not copy Plano or Frisco rules to another city. For food, also check whether Collin County Environmental Health serves the city; the county currently lists Wylie, Melissa, Lowry Crossing, Weston, Josephine, and Farmersville among the incorporated areas it serves for the listed food-service functions.
DBA, assumed name, and business name layer
Texas generally uses the term assumed name for a DBA. It is a public name filing, not permission to operate at a location.
The filing office depends on the business structure. Sole proprietorships, general partnerships or joint ventures, estates, real estate investment trusts, and other business types that are not Secretary-of-State filing entities generally use the county-clerk route described in Texas law. In Collin County, start with the County Clerk Assumed Names page.
Corporations, LLCs, limited partnerships, professional associations, limited liability partnerships, and foreign filing entities that use an assumed name file with the Texas Secretary of State. Since September 1, 2019, those entities are not required to make the same assumed-name filing with each county clerk. The Secretary of State’s Name Filings FAQs explains the split.
The county’s current online instructions say an unincorporated assumed-name application is started online and then finalized with the County Clerk. The county page currently displays a notice that the Plano County Clerk office is closed until further notice because of flooding, so check the live page before traveling and use the McKinney office route if necessary.
Texas state registrations, taxes, and professional licenses
After you identify the local jurisdiction, check the Texas layer. The Governor’s Business Permit Office confirms that Texas does not require one general statewide business license, but specific activities can require licenses or permits.
| State or federal step | When it may matter | Current official route |
|---|---|---|
| Entity formation and state assumed names | LLCs, corporations, LPs, and other Secretary-of-State filing entities; assumed names for those filing entities. | Texas Secretary of State Business Services / SOSPortal gateway |
| Texas sales and use tax | Businesses selling or leasing taxable tangible personal property or taxable services may need a permit. | Texas Online Tax Registration Application |
| Texas franchise tax | Many taxable entities formed in or doing business in Texas have franchise-tax filing duties. | Texas Comptroller Franchise Tax |
| Unemployment tax | Employers that become liable under Texas unemployment-tax rules must establish and manage a TWC tax account. | Texas Workforce Commission tax registration |
| New-hire reporting | Texas employers must separately report new hires and rehires; this is not the same as quarterly wage reporting. | Texas Attorney General Employer Website |
| Professional / occupational licensing | Trades and regulated services can require state licenses even when no general business license exists. | Texas Department of Licensing and Regulation programs |
| Alcohol | Selling, serving, manufacturing, distributing, or storing alcoholic beverages can require TABC licensing plus local steps. | Texas Alcoholic Beverage Commission licenses and permits |
| EIN | Many entities and employers need a federal Employer Identification Number. | IRS EIN page |
If you hire, do not stop after registering with TWC. New-hire reporting is a separate Texas employer duty. Current Texas guidance says new hires and rehires must generally be reported within 20 calendar days of the date the employee starts earning wages.
Zoning, home occupation, building, fire, health, food, and industry permits
The fastest way to find your real permit stack is to describe what you do, where you do it, and how customers interact with the location.
Home-based businesses
Texas law protects a defined no-impact home-based business. Since June 12, 2025, a municipality may not prohibit a qualifying business or require a license, permit, or other approval simply to operate it. The definition includes limits tied to occupancy, traffic/parking, street visibility, and noise.
This is not a blanket exemption. Building, fire, health, sanitation, traffic, waste, pollution, noise, and listed restricted activities can still matter, as can HOA or deed restrictions. If you do not fit the protected definition, check ordinary city home-occupation rules. Outside city limits, check county development, fire, septic, floodplain, and health requirements.
Storefronts, offices, warehouses, and tenant spaces
Check allowed use and occupancy before signing a lease. A landlord’s approval is not government approval, and a previous tenant’s occupancy approval may not cover your use. Inside a city, use its planning/building route. In unincorporated Collin County, county Development Services and Fire Marshal review may apply.
Restaurants, fixed food businesses, and temporary events
First identify the health authority. Collin County currently handles the listed food-service functions in unincorporated areas and in Wylie, Melissa, Lowry Crossing, Weston, Josephine, and Farmersville. Other cities generally use their own health route. Temporary-event rules are separate from a permanent restaurant permit, so use the event location to determine who issues the temporary food approval.
Food trucks, trailers, carts, and other mobile food vendors
Do not follow the old “get a separate local health license in every city” model. Beginning July 1, 2026, DSHS licenses mobile food vendors statewide. That statewide license does not erase local zoning, approved-location, fire, traffic, noise, special-event, or public-safety rules. Plano and McKinney, for example, both expressly direct mobile vendors to the state license while retaining other local controls.
Contractors, salons, professional work, alcohol, and other regulated activities
Local occupancy or building approval does not replace a state occupational license. Check the agency that regulates the work itself. TDLR covers many regulated occupations and industries; other professions use separate state boards. Alcohol businesses use TABC plus applicable local zoning and premises steps. If your activity involves child care, transportation, tobacco, pools, special events, public rights-of-way, hazardous materials, or another regulated activity, identify that specific agency rather than assuming a general business-license page answers the question.
Online sellers and service businesses
An online business can still have a real local location. A home address can trigger home-business or private-property restrictions; stored inventory can affect fire or zoning issues; taxable sales can trigger Texas sales-tax registration; and a regulated service can require a professional license. Marketplace tax collection does not automatically replace every registration or local obligation.
Common mistakes to avoid
- Using the mailing city instead of the legal jurisdiction. Check city limits and ETJ status for the exact property.
- Calling a DBA a business license. An assumed-name filing records a name; it does not approve the business activity or premises.
- Sending every DBA to the County Clerk. Texas filing entities such as LLCs and corporations use the Secretary of State assumed-name route; many unincorporated businesses use the county route.
- Using an old SOSDirect instruction. SOSPortal replaced SOSDirect and SOSUpload for current Secretary-of-State business filings on September 29, 2026.
- Using an old local mobile-food permit path. The DSHS statewide mobile-food license took effect July 1, 2026.
- Assuming “no general zoning” means no rural permits. Unincorporated projects can still face development, fire, septic, floodplain, health, and state requirements.
- Assuming every home business needs a city home-occupation permit. Texas now limits municipal permitting of qualifying no-impact home-based businesses.
- Signing a lease before checking use and occupancy. Verify zoning, certificate-of-occupancy needs, fire/building issues, and any regulated activity before spending heavily.
- Stopping after one employer registration. TWC unemployment-tax obligations and Texas new-hire reporting are separate steps.
What to ask when you contact an agency
Have your exact address, business structure, business activity, and operating method ready. Mention whether you are home-based, mobile, online, in a storefront, or operating at temporary events.
Phone or email script
Hello, I’m trying to confirm the current licensing and permit steps for a [business type] at [address or general location] in Collin County. The business will be [home-based / mobile / storefront / online] and will [briefly describe what you sell or do, customer visits, employees, food, alcohol, construction, signs, storage, deliveries, or events]. Can you confirm whether this address is inside city limits, in an ETJ, or in unincorporated Collin County, and which approvals your office handles? I also want to know whether I need zoning or use approval, a certificate of occupancy, building/fire review, a health or food permit, a sign or event permit, or another activity-specific approval before I operate.
For a DBA question, tell the clerk or Secretary of State what legal structure you have. For a mobile-food question, ask about local operating rules separately from the statewide DSHS license.
Official sources
- Collin County GIS/Rural Addressing
- Collin County Development Services FAQs
- Collin County Fire Marshal: Commercial Applications
- Collin County Food Service and Health
- Collin County Clerk: Assumed Names
- Texas Secretary of State: Name Filings FAQs
- Texas Secretary of State: Business Services / SOSPortal gateway
- Texas Governor’s Business Permit Office
- Texas Comptroller: Online Tax Registration
- Texas Comptroller: Franchise Tax
- Texas Workforce Commission: Unemployment Tax Registration
- Texas Attorney General: Employer Website
- Texas Department of Licensing and Regulation
- Texas Alcoholic Beverage Commission
- Texas DSHS: Mobile Food Vendors
- IRS: Employer Identification Number
- City of Plano: Certificate of Occupancy
- City of Plano: Commercial Permits
- City of Frisco: Commercial Permits
- City of Frisco: Plans & Permits
- City of McKinney: Building Inspections
- City of McKinney: Health Compliance
- City of Allen: Codes & Ordinances
- City of Allen: Commercial Services
Related business license guides
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FAQ
Does Collin County require a general business license?
Collin County does not operate one countywide general business-license system for every business. The county instead handles specific functions such as assumed-name filings, certain health permits, development and OSSF matters, and Fire Marshal review in areas where it has jurisdiction. Your city and Texas agencies may have separate requirements.
If my business is in Plano, Frisco, McKinney, or Allen, do I start with the county or the city?
Start with the city for local zoning, occupancy, building, sign, fire, and other city-controlled approvals. Then add county functions that still apply, such as the correct assumed-name route or a county health function where Collin County has jurisdiction, plus state requirements.
Do I file my DBA with Collin County or the Texas Secretary of State?
It depends on your legal structure. Sole proprietorships, general partnerships, and certain other non-filing entities generally use the county-clerk route. Corporations, LLCs, LPs, professional associations, LLPs, and foreign filing entities use the Texas Secretary of State assumed-name route and are not required to duplicate that filing with the county clerk.
Is a DBA the same as a business license?
No. A DBA or assumed name records the name under which a business operates. It does not replace zoning approval, a certificate of occupancy, a health permit, a sales tax permit, a professional license, a mobile-food license, or other required approval.
Does Collin County have zoning outside city limits?
Collin County says it does not have general zoning restrictions in unincorporated areas except for certain regulated categories, including sexually oriented businesses, salvage/junk yards, and animal slaughter operations. Development, fire, septic, floodplain, health, ETJ, and state rules can still apply.
Who licenses a food truck in Collin County now?
Beginning July 1, 2026, Texas DSHS licenses mobile food vendors statewide. A city or county may still control zoning, approved operating locations, fire and life safety, traffic, events, and other local rules. Do not confuse the statewide food-vendor license with those separate local requirements.
Can a city require a permit for my home business?
Not always. Texas law bars municipalities from requiring a license, permit, or other approval simply to operate a qualifying no-impact home-based business. The protection has conditions, and building, fire, health, traffic, noise, private deed restrictions, and activity-specific licensing can still matter.
What should I check before signing a commercial lease?
Confirm the legal jurisdiction, allowed use or zoning, certificate-of-occupancy requirements, building and fire issues, signs, food or health permits, professional or industry licenses, and any construction approvals. Get the government path clear before relying only on the landlord or a previous tenant’s use.
Update note
Last updated: October 5, 2026
Next review: January 3, 2027
This review rechecked Collin County versus municipal jurisdiction, DBA filing routes, unincorporated development and fire review, food and home-business rules, Texas tax and employer steps, and major city permit paths. Material review-period changes include the July 1 statewide mobile-food-vendor license, Frisco’s August 1 technology fee, the September 29 SOSPortal launch, and October 1 sales-tax boundary updates affecting several Collin County cities.
Informational disclaimer
This guide is for general information only. Business license, tax, zoning, building, health, and permit rules can change and depend on the exact address, activity, business structure, and jurisdiction. Confirm current requirements with the responsible official agency before you file, pay a fee, sign a lease, buy equipment, or begin operating.