Maryland business license guide
Last updated: April 26, 2026
Maryland business licensing is layered. You may deal with the Maryland Department of Assessments and Taxation, the Comptroller of Maryland, the Clerk of the Circuit Court, Maryland OneStop, your county, your city, and sometimes a state licensing board.
This guide explains which layer does what, what to check first, and where to verify the rules before you open or operate.
The short answer
Maryland does not use one simple license that covers every business activity. Instead, many businesses need a mix of registrations, tax accounts, Clerk of the Circuit Court business licenses, state professional or industry licenses, and local zoning or permit approvals.
If you sell goods in Maryland, pay special attention to the Maryland trader’s license and sales and use tax license. If you form an LLC, corporation, limited partnership, or similar entity, you will usually start with the Maryland Department of Assessments and Taxation through Maryland Business Express. If you use a public name that is not your legal name, Maryland calls that a trade name.
Maryland-specific facts to know first
| Question | Maryland answer |
|---|---|
| What is the main Maryland business portal? | Maryland Business Express. It connects business formation, tax registration, licenses, permits, annual reports, and business records. |
| Who handles LLCs, corporations, and Maryland business records? | The Maryland State Department of Assessments and Taxation, often called SDAT. |
| What does Maryland call a DBA? | Maryland usually uses the term trade name. A trade name lets a business use a different public name, but it is not the same as forming an LLC or getting a trademark. |
| Who manages Maryland business licenses? | The Comptroller’s License Bureau monitors and enforces the use of business licenses in Maryland. Many licenses are issued through the Clerk of the Circuit Court for the county, or Baltimore City, where the business is located. |
| What is a Maryland trader’s license? | A Maryland trader’s license is commonly required when a person or business sells goods in Maryland, unless an exemption applies. It is different from a sales and use tax license. |
| Where do Maryland tax accounts come from? | Many tax accounts are registered through the Comptroller’s Combined Registration Application, now reached through Maryland Tax Connect or Maryland Business Express. |
| Where do state professional licenses live? | Many state licenses and permits can be searched through Maryland OneStop. Some professions are handled by the Maryland Department of Labor or another specific board or agency. |
Quick start checklist for a Maryland business
Use this as a starting map. Your actual list may change based on your business type, address, products, services, and local rules.
- Write down what you will do. List your business activity, products or services, whether customers visit, whether you sell goods, whether food is involved, and whether you will operate from home, a storefront, a vehicle, or online.
- Choose your structure. Decide whether you will operate as a sole proprietor, general partnership, LLC, corporation, or another entity. Legal entities are handled by SDAT.
- Check your business name. Use Maryland Business Express to search Maryland names. If you will use a public name different from your legal name, check whether you need a Maryland trade name.
- Form or register the entity if needed. LLCs, corporations, limited partnerships, and foreign entities usually file with SDAT through Maryland Business Express.
- Get an EIN from the IRS if needed. The IRS says an EIN is free when obtained directly from the IRS. Form the state entity first if you are creating an LLC, corporation, partnership, or similar legal entity.
- Register Maryland tax accounts. Use Maryland Tax Connect or Maryland Business Express for the Comptroller’s Combined Registration Application when you need sales and use tax, withholding, admissions and amusement tax, unemployment insurance, or another Maryland tax account.
- Check Maryland business licenses. If you sell goods, check the trader’s license rules. Also check whether your activity is one of the Clerk-issued license categories, such as restaurant, construction firm, peddler, vending machine, chain store, storage warehouse, junk dealer, or auctioneer.
- Check state professional or industry licenses. Use Maryland OneStop and the correct state board. Examples include home improvement contracting, real estate, insurance, child care, food processing, alcohol, tobacco, cannabis, and other regulated fields.
- Check your city and county. Local rules may include zoning approval, home occupation rules, use and occupancy approval, building permits, fire review, signs, health department permits, mobile vendor permits, or county business licenses.
- Save proof and renewal dates. Keep copies of filings, licenses, account numbers, permit approvals, inspection approvals, usernames, and renewal dates.
Do not mix up the government layers
A Maryland business may need approvals from more than one government layer. Getting one approval does not mean the others are done.
| Layer | What it may handle | Where to start |
|---|---|---|
| Federal | EIN, federal tax ID, and federal permits for federally regulated activities. | IRS EIN page and federal agency pages for regulated industries. |
| Maryland state | Entity registration, trade names, sales and use tax license, withholding, unemployment insurance, certain business licenses, and professional licenses. | Maryland Business Express, Maryland Tax Connect, Maryland OneStop, and the correct licensing board. |
| County | Clerk-issued business licenses, zoning, building permits, health permits, food service permits, inspections, and some county business licenses. | Your county Clerk of the Circuit Court, health department, permitting office, zoning office, or licensing office. |
| City or town | Local zoning, business permits, signs, home occupation rules, rental rules, use and occupancy, fire review, local vendor rules, and local licenses. | Your city or town planning, zoning, finance, business licensing, or permits office. |
| Private platforms | Marketplace, delivery app, payment processor, landlord, HOA, or insurance requirements. | The platform, landlord, lease, HOA rules, insurer, or contract. These do not replace government approvals. |
Important: A Maryland LLC is not a business license. A sales and use tax license is not a zoning approval. A trader’s license is not a health permit. Check each layer separately.
Maryland business licenses and trader’s licenses
Maryland uses a business license system that is different from many states. The Comptroller’s License Bureau monitors and enforces business licenses, but many licenses are issued through the Clerk of the Circuit Court in the county where the business is located, or in Baltimore City.
Maryland Business Express tells businesses to check both state and local requirements because licensing rules vary by industry and location.
The trader’s license is a key Maryland issue
If you sell goods in Maryland, the trader’s license is often the first license to check. The Comptroller explains that, unless you are a grower or manufacturer, you may not offer for sale, sell, or otherwise dispose of goods in Maryland without first getting a trader’s license from the Clerk of the Circuit Court and opening a sales tax account.
The trader’s license is not the same thing as a sales and use tax license. Many sellers need both.
Other Clerk-issued license categories may apply
The Comptroller’s sales and use tax registration help page lists several license types that may be issued by the Clerk of the Circuit Court in the county, or Baltimore City, where the business is located. The list includes:
- Trader’s license
- Restaurant license
- Cigarette and special cigarette licenses
- Construction firm license
- Plumber and gas fitter license
- Laundry license
- Chain store license
- Commercial garage license
- Storage warehouse license
- Exhibitor’s Affidavit
- Junk dealer license
- Auctioneer license
- Hawker and peddler license
- Vending machine, pinball, music box, billiard table, and console machine licenses
- Wholesale dealer for farm machinery license
Practical tip: If your business sells goods, start by asking the county or Baltimore City Clerk whether you need a trader’s license or another Clerk-issued license. Then ask the Comptroller about the sales and use tax license.
Entity registration with SDAT
If you create a Maryland LLC, corporation, limited partnership, limited liability partnership, or similar legal entity, you usually register with the Maryland State Department of Assessments and Taxation. Maryland Business Express is the recommended online portal for most business formation and registration filings.
Out-of-state businesses that want to do business in Maryland may also need to register or qualify with SDAT before operating in Maryland. Do not assume that being registered in another state is enough.
Sole proprietors and general partnerships
SDAT’s Maryland checklist says sole proprietorships and general partnerships do not have the same legal entity filing formalities as LLCs and corporations. But they still must comply with Maryland and local licensing, trade name, and tax rules when those rules apply.
Good standing and annual reports
Maryland entities must keep up with annual filings to stay in good standing. Maryland Business Express says businesses may need to file an Annual Report and, depending on the business type and situation, a Personal Property Tax Return. The first annual filing is generally due the year after the business starts.
Before you apply for a license, loan, lease, or contract, check your entity’s SDAT status. A business that is not in good standing may have trouble getting or renewing licenses.
Trade names in Maryland
Maryland uses the term trade name for a public business name that is different from the legal name of the owner or entity.
For example, if a Maryland LLC is legally named Harbor Bay Services LLC but wants to advertise as Bay Area Cleaning Co., it may need to register that trade name.
What a trade name does
- It lets the public connect the operating name to the legal business owner.
- It is filed through Maryland’s business registration system.
- It may be needed before applying for licenses, opening business accounts, or advertising under that name.
What a trade name does not do
- It does not create an LLC or corporation.
- It does not replace a trader’s license, tax account, zoning approval, or professional license.
- It does not automatically give full trademark protection.
- It does not prove that the name is available in every state, county, website domain, or marketplace.
Do now: Search the name in Maryland Business Express before you print signs, order packaging, buy a domain, or submit license applications under the name.
Maryland tax accounts and sales tax
Tax registration is separate from business formation and local licensing. Maryland tax accounts are usually handled through the Comptroller of Maryland.
Maryland Business Express says the Comptroller’s Combined Registration Application can be used to register for multiple Maryland tax accounts. New businesses can file the CRA through Maryland Business Express, and new or existing businesses can register or update accounts through Maryland Tax Connect.
| Account or license | When to check it | Official starting point |
|---|---|---|
| Sales and use tax license | Check this if you sell goods or taxable services in Maryland. | Maryland Tax Connect |
| Income tax withholding account | Check this if you pay wages or compensation to employees. | Maryland Business Express tax accounts page |
| Unemployment insurance account | Check this if you have Maryland employees. | Maryland Department of Labor BEACON employer registration |
| Admissions and amusement tax account | Check this for certain entertainment, amusement, admission, or event activities. | Maryland Tax Connect |
| Transient vendor license | Check this if you sell at temporary places or events and are not operating from a fixed Maryland place of business. | Maryland Tax Connect |
| Alcohol, tobacco, or motor fuel accounts | These may require special paper or agency-specific steps. Do not assume they are covered by a regular sales tax account. | Comptroller of Maryland and the applicable agency |
Watch this common mix-up: A Maryland sales and use tax license may let you collect and remit sales tax, but it does not prove that your location is zoned correctly, that your food operation is approved, or that you have a trader’s license.
If you hire employees in Maryland
Hiring employees adds another layer. You may need federal, Maryland tax, unemployment insurance, workers’ compensation, labor law, and new hire reporting steps.
- Federal EIN: Get an EIN directly from the IRS if your business needs one. The IRS says you do not have to pay a fee for an EIN.
- Maryland withholding: Register for the correct Maryland withholding account if you pay wages or compensation.
- Unemployment insurance: Maryland Department of Labor says employers are required to register for an employer unemployment insurance account. New employers use the BEACON employer portal.
- New hire reporting: Maryland employers must report newly hired or rehired employees to the Maryland State Directory of New Hires within the required time period.
- Workers’ compensation: Check Maryland workers’ compensation rules before hiring. Some license or permit applications may ask for proof of compliance when applicable.
- Posters and payroll records: Keep required workplace notices, wage records, tax records, and insurance records.
If you are not sure whether a worker is an employee or independent contractor, do not guess. That decision can affect tax, unemployment, workers’ compensation, wage, and insurance rules.
Industry and professional licenses in Maryland
Some Maryland businesses need a license because of what they do, not just because they operate a business. These licenses may come from Maryland OneStop, the Maryland Department of Labor, the Maryland Department of Health, the Maryland State Department of Education, the Alcohol, Tobacco, and Cannabis Commission, the Maryland Cannabis Administration, or another board.
| Business type | Maryland-specific place to check | Why it matters |
|---|---|---|
| Home improvement contractors | Maryland Home Improvement Commission | Maryland licenses and regulates home improvement contractors and salespersons. |
| Food processing, dairy, frozen desserts, retail food, restaurants, and food trucks | Maryland Department of Health food license and permit page and the local health department | The state handles some food processing and dairy licensing, while retail food is commonly directed to the local health department. |
| Child care centers and family child care | Maryland State Department of Education Office of Child Care | The Office of Child Care licensing branch inspects and licenses child care centers and family child care providers. |
| Alcohol and tobacco | Maryland Alcohol, Tobacco, and Cannabis Commission license and permit page | Alcohol and tobacco licensing has separate rules and may also involve local approval. |
| Cannabis | Maryland Cannabis Administration | Cannabis is a specialized regulated industry. Do not rely on a general business checklist. |
| Real estate, insurance, home inspection, mechanics, and other licensed occupations | Maryland OneStop and Maryland Department of Labor occupational licensing | Many professional licenses are handled through state boards and may apply to owners, employees, or both. |
Ask before you lease: Food, child care, salons, auto repair, contractors, and alcohol-related businesses often need location approval, inspections, or board approval before opening. Check before signing a lease or buying equipment.
Home-based businesses and local approvals
A home-based Maryland business may still need state registration, tax accounts, a trade name, a trader’s license, a professional license, or local zoning approval.
Local zoning is especially important. A home business can be affected by customer visits, employees, deliveries, parking, signs, noise, storage, food handling, childcare, equipment, or neighborhood rules.
Questions to ask your city or county zoning office
- Is my business activity allowed at this address?
- Do I need a home occupation approval, zoning use permit, affidavit, or similar local approval?
- Can customers, clients, students, or delivery drivers visit the home?
- Can I keep inventory, tools, equipment, food, or supplies at the home?
- Are signs, vehicles, employees, noise, or parking limited?
- Do I need fire, building, or health department review?
- Do HOA, condo, landlord, or lease rules create separate limits?
Do not assume online means no license. An online seller in Maryland may still need a sales and use tax license, trader’s license, trade name, home occupation approval, or industry license depending on what is sold and where the business is based.
Maryland city and county starting points
Maryland local rules vary. Use these official local pages as starting points, then confirm the exact requirement for your business address and activity.
| Local area | Official place to start | What to check |
|---|---|---|
| Baltimore City | Baltimore City business permits | Business permits, local licenses, late-night operations, zoning, building, and related city approvals. |
| Baltimore County | Baltimore County zoning review forms | Zoning approval, business license zoning review, home occupation issues, use permits, and local approvals. |
| Prince George’s County | Prince George’s County business licenses | County business license categories, Momentum portal, DPIE licensing, and state business license routing. |
| Montgomery County | Montgomery County Department of Permitting Services | Permits, zoning, construction, fire code compliance, and related local review. |
| Rockville | City of Rockville business or rental license page | Business licenses, vendor licenses, rental licenses, regulated activities, and city planning and development rules. |
| Annapolis | City of Annapolis start a business page | Permits, licensing, building permits, inspections, health department coordination, and pre-application help. |
| Frederick | City of Frederick permits and application center | Commercial permits, zoning, signs, vendor and peddler applications, building permits, and related city approvals. |
If your business is outside these areas, search for your county or city name plus “business license,” “zoning,” “permits,” “health department,” or “Clerk of the Circuit Court.” Use official government pages first.
Official Maryland agency directory
Use these official sources to verify the details for your business.
- Maryland Business Express for Maryland start, register, tax, license, annual report, and business management links.
- Maryland State Department of Assessments and Taxation for business entity records, SDAT filings, business status, annual reports, and trade names.
- Maryland Business Express online registration portal for business registration, trade names, tax accounts, document orders, annual reports, and personal property tax returns.
- Comptroller of Maryland business licenses page for trader’s licenses and other Maryland business license categories.
- Maryland Tax Connect for Comptroller tax registration and account services.
- Maryland OneStop for Maryland state licenses, permits, forms, applications, and registrations.
- Maryland Department of Labor occupational and professional licensing for many state-regulated occupations.
- Maryland Department of Labor BEACON employer account instructions for unemployment insurance employer registration.
- Maryland State Directory of New Hires for employer new hire reporting.
- IRS EIN page for a free federal employer identification number when needed.
- U.S. Small Business Administration license and permit guide for general federal, state, and local permit concepts.
Common Maryland licensing mistakes
- Thinking an LLC is a license. An LLC is a legal entity filing with SDAT. You may still need tax accounts, a trader’s license, professional licensing, zoning, and local permits.
- Skipping the trader’s license check. If you sell goods in Maryland, check the trader’s license rules with the Clerk of the Circuit Court and the Comptroller before selling.
- Confusing a trade name with a trademark. A Maryland trade name is not the same as federal trademark protection.
- Only checking the state portal. Maryland Business Express is important, but city and county zoning, permits, and health department rules may still apply.
- Waiting until after signing a lease. Some locations may not be approved for your use. Check zoning and use approvals before committing to a storefront, kitchen, office, or warehouse.
- Using the wrong county or city office. Your business address controls many local rules. A mailing address, registered agent address, or PO box may not be the same as the operating location.
- Assuming a home business has no rules. Customer visits, signs, inventory, food, child care, parking, and deliveries can trigger local zoning or permit rules.
- Starting a regulated business with only a general checklist. Food, alcohol, tobacco, cannabis, child care, home improvement, health services, and professional work often need agency-specific licenses.
- Not tracking renewal dates. Maryland licenses, local permits, annual reports, tax accounts, and professional licenses may have different renewal cycles.
What to ask when you contact the agency
Before calling or emailing, have your business details ready. Write down your business type, legal name, trade name, business address, county, city or town, whether you sell goods, whether customers visit, whether food or regulated services are involved, and whether the business is home-based, mobile, online, or storefront-based.
Phone or email script
Hello. I am planning to operate a [business type] in [city or town], [county], Maryland. The business will be [home-based / mobile / storefront / online] at [address or general location]. I plan to offer [products or services]. Can you please confirm whether I need a Maryland business license, trader’s license, local business license, zoning approval, home occupation approval, health permit, professional license, or another permit before I operate? If your office does not handle this, which Maryland state, county, city, Clerk of the Circuit Court, health department, or licensing board should I contact next?
Ask the agency to point you to the official application page or written requirement. Do not rely only on a verbal answer for important licensing decisions.
- Write down the agency name and the person or unit you contacted.
- Write down the date of the call or email.
- Write down the exact license, permit, tax account, or zoning approval name.
- Ask for the official application link, checklist, fee page, and renewal rule.
- Ask whether another office must approve the business before you apply.
- Ask whether the rule changes for home-based, mobile, event-based, online, or storefront businesses.
- Save emails, confirmation numbers, receipts, approvals, and inspection records.
Review note
This page was last checked against official Maryland, local, and federal sources on April 26, 2026. Maryland licensing pages, portal names, filing rules, fees, and local procedures can change. Always confirm important details with the official agency before you rely on them.
Next Review: July 25, 2026
Plain-English disclaimer
This guide is for general information only. It is not legal, tax, financial, insurance, employment, safety, immigration, or professional advice. Business licensing can depend on your exact activity, location, ownership, employees, products, and facilities. Confirm your requirements with the official agency or a qualified professional before you act.
FAQ
Does Maryland have one general statewide business license?
Maryland does not use one simple license that covers every business activity. Many businesses need a mix of SDAT registration, Maryland tax accounts, Clerk of the Circuit Court business licenses, state professional licenses, and local city or county approvals.
Do I need a Maryland trader’s license?
You may need a Maryland trader’s license if you sell goods in Maryland. The Comptroller says that, unless an exemption applies, a person or business may not sell goods in Maryland without first getting a trader’s license from the Clerk of the Circuit Court and opening a sales tax account.
Is forming an LLC the same as getting a business license in Maryland?
No. Forming an LLC with the Maryland State Department of Assessments and Taxation creates a legal entity. It does not replace a trader’s license, sales and use tax license, local zoning approval, health permit, professional license, or other required approval.
Where do I register for Maryland sales tax?
Maryland sales and use tax registration is handled through the Comptroller of Maryland. Many businesses use the Combined Registration Application through Maryland Tax Connect or Maryland Business Express to register tax accounts.
Do home-based businesses in Maryland need licenses or permits?
They may. A home-based business may still need state tax accounts, a trade name, a trader’s license, a professional license, local zoning approval, a home occupation approval, or a health or fire review depending on the business activity and address.
Who handles food, child care, and home improvement licenses in Maryland?
Food rules may involve the Maryland Department of Health and the local health department. Child care licensing is handled by the Maryland State Department of Education Office of Child Care. Home improvement contractors are regulated by the Maryland Home Improvement Commission.