Oakland County business license guide
Last updated: August 1, 2026
Oakland County does not issue one general county business license for every business. Your real checklist usually starts with the city, village, or township that controls your address. You may also need an Oakland County assumed name filing or health permit, Michigan tax and entity registrations, and a federal tax ID or industry permit.
Bottom line
Do not look for one form called an “Oakland County business license.” The county’s official business page says Oakland County does not require a general business license. It tells owners to check the State of Michigan and the city or township where the business is located.
The county still matters for assumed names, co-partnership filings, food service, environmental health, and property or jurisdiction research. Local governments may control zoning, home occupations, building use, fire review, signs, vendors, and activity-specific licenses. Michigan handles entity filings, state tax accounts, employer accounts, and many professional or industry licenses.
Quick start: what to do before you open
- Confirm the legal jurisdiction for the address. A mailing address that says Birmingham, Rochester, Pontiac, or another city name may not tell you which city, village, or township handles zoning.
- Write down exactly what the business will do. Include products, services, food, customer visits, employees, vehicles, equipment, signs, inventory, and outdoor work.
- Ask the local government about the address first. Check zoning, home occupation rules, building use, fire review, signs, vendor permits, and any local business license.
- Check the county layer. Look at assumed names, co-partnerships, food service, environmental health, and property tools.
- Check Michigan requirements. Review entity registration, sales tax, employer accounts, annual filings, and professional or industry licenses.
- Check federal duties. Get an EIN when needed and check federal permits for regulated activities.
- Save proof. Keep applications, approvals, receipts, inspection reports, renewal dates, and written agency answers in one folder.
For a broader state overview, read the Michigan business license guide. If the terms are confusing, compare a business license, LLC, DBA, and seller’s permit before filing anything.
The four government layers are separate
One approval does not cancel the need for another. A Michigan LLC filing does not approve a storefront. An Oakland County DBA does not approve food service. A local certificate of occupancy does not create a tax account.
| Layer | What it may control | Where to start |
|---|---|---|
| Federal | EIN, federal taxes, and permits for federally regulated activities | IRS and the federal agency that regulates the activity |
| Michigan | LLCs and corporations, sales tax, withholding, unemployment, professional licenses, trades, alcohol, cannabis, and some food businesses | LARA, Michigan Treasury, UIA, MDARD, and other state agencies |
| Oakland County | Assumed names and co-partnerships, many food service and environmental health matters, and address or parcel tools | County Clerk/Register of Deeds, Health Division, and Property Gateway |
| City, village, or township | Zoning, home occupation, local business licenses, building and fire review, occupancy, signs, vendors, and local taxes where applicable | Local clerk, planning or zoning, building, fire, and treasury offices |
An LLC is a business structure, not an operating permit. See why LLCs may still need licenses and permits. For a nearby example of how Michigan city and county duties can stack, review the Detroit business license guide.
Start with the exact city, village, or township
Oakland County has 62 cities, villages, and townships. Local rules can change across a short distance. A business in Southfield may have different local duties from a business in Troy, Novi, Pontiac, Royal Oak, Waterford Township, or West Bloomfield Township.
Use the physical property address, not only the mailing city. The Oakland County Property Gateway provides parcel and map information. You can also contact the local assessor, clerk, or planning office to confirm who controls the property.
Check zoning before you sign a lease
A landlord can agree to rent you a space that is not yet approved for your use. Ask the local zoning or planning office whether your use is allowed. Then ask whether a change of use, site plan, special approval, building work, fire inspection, or certificate of occupancy is required.
Home-based and online businesses
A home business may still need local zoning or home occupation approval. The local government may review customer visits, employees, deliveries, parking, noise, equipment, signs, commercial vehicles, outdoor work, and inventory storage. A landlord, condo association, or homeowners association may add private limits, but private permission does not replace government approval.
Online sales do not remove the address from the rules. A seller storing products, packing orders, or allowing pickups at home should read the guide to selling online from home and then confirm the local rules for the property.
Oakland County filings and permits
There is no general county business license
Oakland County’s Business Forward tools and FAQ page states that the county does not require a business license. It directs owners to Michigan’s license search and to the city or township where the business is located.
Assumed name and co-partnership filings
Sole proprietors and general partnerships using a public name may need a county filing. Oakland County calls these Assumed Names and Co-Partnerships. The county page says:
- You may file in person or by mail.
- The Clerk’s Office makes the final decision on name availability.
- Each filed business name is valid for five years and may be renewed.
- The posted fee is $10 for an Assumed Name Certificate and $10 for a Co-Partnership Certificate.
- The county lists 248-858-0569 for additional assumed-name or co-partnership questions.
Search the Oakland County business name database before filing, but remember that a search result is not final approval.
A DBA is not an LLC or license
A county assumed name gives public notice of the name. It does not create an LLC, protect a trademark, approve zoning, open a Michigan tax account, or authorize regulated work. Use the county filing only for the job it actually performs.
Food service and environmental health
Oakland County Health Division handles many local food safety matters. Its Food Safety program covers licensing support, inspections, plan review, education, and complaints. Restaurants, coffee shops, catering kitchens, food trucks, mobile units, concessions, and temporary food operations should contact the county before buying equipment or opening.
The county’s broader Environmental Health services may also matter for body art, public pools, wells, septic systems, campgrounds, and certain care facilities. The correct permit depends on the activity and property.
City, village, and township rules
Local governments do not all use the same system. Some license many business categories. Others require only activity-specific permits. Some focus on zoning, occupancy, or building approval rather than a general registration.
| Community | What the official page says | Practical action |
|---|---|---|
| Southfield | The City Clerk issues certain business licenses, including listed categories such as landscaping and snow removal, auto dealerships, and vending machines. Some licenses need building, fire, or background review. Annual renewals are due or postmarked by January 1. Licenses are not transferable. | Review the Southfield licenses and permits page. Call the Clerk at 248-796-5150 for the current category and fee schedule. |
| Troy | The City Clerk lists business licenses for temporary merchants, peddlers, and medical marijuana caregivers. | Start with the Troy City Clerk, then check zoning and building requirements for the address. |
| Novi | The city says it no longer requires general business registration, but it still directs new businesses to zoning, licensing, permits, and ordinances. | Use Novi’s new business page and its forms and zoning links. |
| Pontiac | The Business Licensing Bureau handles city business licensing through Community Development. The posted contact is 248-758-2817, Monday through Friday, 8:30 a.m. to 4:30 p.m. | Check the Pontiac Business Licensing Bureau and city forms before opening. |
| Royal Oak | The city maintains a business licensing page and searchable online licensing system. | Use Royal Oak’s business licensing page and confirm zoning, building, fire, and permit steps for the location. |
These are examples, not a countywide rule. Check your own city, village, or township even when a nearby community has no general license. A mobile vendor working in several communities may need to repeat the local check for every stop or event.
Michigan registrations, taxes, and licenses
Entity formation and annual filings
The Michigan Department of Licensing and Regulatory Affairs, known as LARA, handles LLC, corporation, and other entity filings through the MiBusiness Registry Portal. Forming an entity is separate from obtaining local permits.
LARA’s annual filing page lists these current deadlines and base fees:
- Michigan LLC annual statement: due February 15; $25.
- Profit corporation annual report: due May 15; $25.
- Nonprofit corporation annual report: due October 1; $20.
The page lists special timing for newly formed entities and late fees. Confirm the current rule for your exact entity before filing. Taxes and annual entity reports are not the same filing.
Sales tax and Michigan Treasury
Michigan Treasury says individuals or businesses selling tangible personal property to the final consumer generally need a sales tax license. Michigan has a 6% state sales tax and no city, local, or county sales tax. Review who needs a Michigan sales tax license before collecting tax.
Use Michigan’s online business tax registration to open applicable tax accounts. Existing accounts are commonly managed through Michigan Treasury Online. A sales tax license is not the same as a local business license or resale certificate; see the seller’s permit versus business license guide for the difference.
Employees
Businesses with covered employees must register for a Michigan unemployment employer account. Start with the Unemployment Insurance Agency employer registration page. Michigan also has workers’ compensation coverage rules based on the number of workers, hours, and other facts. Check the Workers’ Disability Compensation Agency insurance requirements before hiring.
Professional and industry licenses
Use Michigan’s State License Search to identify activity-specific permits. LARA’s license verification page helps owners and customers check many licensed professionals and businesses.
Construction, health professions, cosmetology, real estate, alcohol, cannabis, transportation, child care, and other regulated work may have separate agencies and rules. Do not advertise or perform regulated work until the responsible agency confirms that you may do so.
Checks by business type
| Operating model | First calls or checks | Common approvals |
|---|---|---|
| Home-based consultant or service | Local zoning or home occupation office; county name filing if using a trade name | Home occupation approval, assumed name, professional license if regulated, EIN or tax accounts when applicable |
| Online seller | Michigan Treasury; local home occupation rules | Sales tax license, home zoning, DBA or entity filing, product-specific rules, marketplace records |
| Storefront, office, salon, or studio | Local zoning and building office before signing a lease | Occupancy approval, building and fire review, signs, local license, professional license, sales tax if selling products |
| Restaurant, caterer, or food truck | Oakland County Health Division and local zoning, building, and fire offices | Plan review, food service license, local occupancy, fire review, sales tax, event or vendor approval |
| Contractor or handyman | Michigan LARA and each local building department | State builder or trade license when required, project permits, inspections, local registration, right-of-way permits |
| Mobile vendor or temporary merchant | Every city, township, event, or property where sales will occur | Peddler or vendor permit, event approval, health permit if food, fire review, sales tax account, property-owner permission |
Food businesses
Michigan says restaurants, coffee shops, bars, catering kitchens, food trucks, mobile units, and temporary food establishments are generally licensed by local health departments. The state’s food service licensing page says plan review is often required. It also explains that a temporary food establishment operates at one location for no more than 14 consecutive days.
A mobile food business may need health approval, commissary documents, local vending permission, fire review for cooking or propane, tax registration, and event permission. The food truck license and permit guide helps separate these steps.
Michigan cottage food rules are narrower. The MDARD cottage food page explains that qualifying home operations may be exempt from food licensing and routine inspection, but must still follow product, labeling, and other rules. Local zoning can still apply.
Residential builders and remodelers
LARA states that contractors offering residential work totaling $600 or more in labor and materials must be licensed when the state licensing law applies to the work. Review the Michigan residential builder guidance and confirm the correct license type. State licensing does not replace local project permits or inspections.
Federal checks
An EIN is a federal tax identification number, not a business license. The IRS says to apply directly for an EIN for free when one is needed. Do not pay a private website merely to obtain the number.
Most ordinary local businesses do not need a general federal business license. Some activities are federally regulated. The U.S. Small Business Administration federal license and permit guide lists areas such as alcohol, aviation, broadcasting, firearms, commercial fishing, mining, transportation, and wildlife-related activities.
Common mistakes to avoid
- Using the mailing city as the permit authority. Confirm the legal city, village, or township for the parcel.
- Filing a DBA and thinking the business is licensed. A DBA is only a name filing.
- Forming an LLC and skipping local approvals. Entity formation does not approve zoning, occupancy, food service, or regulated work.
- Signing a lease before zoning review. Get a written local answer about the proposed use first.
- Copying another Oakland County city’s rules. Each municipality can use different license categories, fees, and renewal dates.
- Waiting until opening day to contact the health department. Food businesses may need plan review and inspections before opening.
- Assuming a marketplace handles every tax duty. Platform collection rules do not automatically settle local zoning, DBA, income tax, employer, or direct-sale duties.
- Forgetting renewals. Track local licenses, county name renewals, state entity reports, professional licenses, and tax filing dates separately.
What to ask the local office
Call or email script
“I plan to operate a [business type] at [full address]. The business will be [home-based, storefront, mobile, online, or food-related]. Customers will [visit or not visit], and I will [store inventory, use equipment, hire workers, install a sign, or serve food]. Is this use allowed at the address? Do I need a local business license, zoning approval, home occupation approval, building permit, fire inspection, certificate of occupancy, sign permit, vendor permit, or another approval before I open?”
Ask the employee to send the answer or official link by email when possible. Write down the name of the office, the date, and the next step.
Related business license guides
Start with the closest next-step guides, then explore other BLG location and licensing resources.
Best next guides
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Frequently asked questions
Does Oakland County require a general business license?
No. Oakland County’s official business page says the county does not require a general business license. You must still check the city, village, or township, Oakland County filings and health permits, Michigan registrations, and any federal requirement that applies to your activity.
Where do I file a DBA in Oakland County?
Oakland County Clerk/Register of Deeds handles Assumed Name and Co-Partnership filings for qualifying businesses. The county says a filed name is valid for five years and lists a $10 filing fee. Confirm the current form and fee before filing.
Do I need a business license for a home business?
You may need local zoning or home occupation approval even when no general county license exists. The local government may review customers, workers, parking, deliveries, signs, vehicles, equipment, noise, and storage. State tax or professional licensing may also apply.
Does a Michigan LLC replace local licenses?
No. An LLC is a state business structure. It does not replace zoning approval, a local business license, a food permit, a certificate of occupancy, a sales tax license, a professional license, or building and fire approvals.
Who licenses restaurants and food trucks in Oakland County?
Many restaurants, caterers, food trucks, mobile units, and temporary food operations work with Oakland County Health Division. Local zoning, building, fire, vending, and event approvals may also apply. Some food businesses fall under Michigan MDARD instead.
Do online sellers need a Michigan sales tax license?
Michigan Treasury says businesses selling tangible personal property to final consumers generally need a sales tax license. Marketplace collection may affect how tax is collected, but it does not automatically remove every registration, filing, or direct-sale duty.
Do contractors need an Oakland County contractor license?
Contractor licensing usually starts with Michigan LARA and the local building department, not a general Oakland County contractor license. State licenses, local permits, inspections, contractor registration, insurance, or bonding may apply depending on the trade and project.
Does a certificate of occupancy replace a business license?
No. An occupancy approval addresses the building or space. A business may still need a local license, zoning approval, state tax account, professional license, food permit, sign permit, fire review, or assumed name filing.
Careful review note
This guide is general information, not legal, tax, accounting, insurance, employment, real estate, health, or professional advice. Rules can change, and the correct answer depends on the exact address, business activity, ownership, products, workers, equipment, building use, and local ordinance. Confirm current forms, fees, deadlines, renewal rules, and approval steps with the responsible agency before paying, signing a lease, advertising regulated work, or opening.