How to Get a Business License in Maine (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

Maine has no single general statewide business license. Instead, most businesses register for sales tax as a retailer with Maine Revenue Services (free), obtain any profession-specific license from the Office of Professional and Occupational Regulation, and check their town or city for local permits. Maine's general sales and use tax rate is 5.5%, and forming an LLC or corporation is a separate registration with the Maine Secretary of State.

Does Maine Require a General Business License?

Maine does not issue a single, general-purpose business license that every company must hold to operate. There is no statewide "Maine business license" application or fee. Whether you need any license at all depends on three questions: what you sell, what profession or trade you practice, and where you physically operate. A freelance writer working from home may need nothing beyond registering their business income for tax purposes, while a restaurant needs sales tax registration, health and food permits, possibly a liquor license, and local approvals.

Because there is no one-stop license, it helps to treat "getting licensed in Maine" as a checklist of separate obligations: sales tax registration, professional or occupational licensing, local municipal permits, and - if you use an entity - registering that entity with the state. This guide walks through each so you can figure out which apply. If you are also choosing a structure, start with our how to form an LLC hub and the national business license overview, then return here for Maine specifics.

Sales Tax Registration with Maine Revenue Services

The registration most businesses actually need is a sales tax registration (sometimes called a seller's or retailer's registration) with Maine Revenue Services (MRS), the tax agency within the Maine Department of Administrative and Financial Services. If you sell tangible personal property or certain taxable services, you must register as a retailer before making taxable sales, then collect and remit Maine sales tax. Maine's general sales and use tax rate is 5.5%, with higher rates on specific categories such as prepared food and short-term lodging - confirm the current rate schedule with MRS.

Registration itself is free and is handled online through the Maine Tax Portal. Once registered, MRS assigns a filing frequency and you file returns even in periods with no sales. Registering also lets you buy inventory for resale without paying sales tax by presenting a resale certificate. If you hire employees, you separately register for Maine income tax withholding with MRS. For how sales and income taxes fit together for a small business, see our business tax hub and Maine LLC tax filing guide.

Professional and Occupational Licenses

Many trades and professions in Maine require an occupational license before you can legally offer services. The primary licensing body is the Office of Professional and Occupational Regulation (OPOR), part of the Maine Department of Professional and Financial Regulation (PFR). OPOR oversees dozens of boards and commissions covering fields such as cosmetology and barbering, electricians and plumbers, real estate, counseling, and many others. Each board sets its own qualifications, examinations, and renewal fees, so the cost and process differ widely by occupation.

Some regulated activities are licensed by other Maine agencies rather than OPOR - for example, certain health, environmental, agricultural, and financial activities. The practical step is to identify the board that governs your specific field and confirm its current requirements directly. Operating a regulated profession without the required license can lead to fines and enforcement action, so verify before you take on clients. A professional license is distinct from a trade name or a trademark, which protect a name rather than authorize a profession.

Local and Municipal Licenses

Maine's cities and towns issue their own licenses and permits, and requirements vary considerably from one municipality to the next. Common local licenses include those for food establishments, lodging, victualer (food service) permits, liquor, amusements, and home occupations. Your town may also require zoning approval, a certificate of occupancy, or a signage permit before you open. There is no uniform statewide rule, so the reliable move is to contact the municipal clerk or code enforcement office in the town or city where your business is located.

If you operate in more than one municipality, you may need to satisfy each town's rules separately. Home-based businesses are not exempt from local zoning, so check even if you work from a residence. Budget time for these approvals, because inspections - especially for food and lodging - can add weeks. For a national perspective on how state, local, and professional licenses stack, revisit the business license guide and our glossary of terms.

Registering Your Business Entity with the Secretary of State

Licensing is separate from creating a legal entity. If you form a Maine LLC or a corporation, you file formation documents with the Maine Secretary of State, Bureau of Corporations, Elections and Commissions. An LLC files a Certificate of Formation and appoints a registered agent; you can confirm an entity's status in the Maine business entity search. Maine entities also file an annual report each year to stay in good standing - check the Secretary of State's fee schedule for the current amount rather than relying on a figure that may have changed.

A sole proprietor is not required to file formation documents, but if you use a business name other than your own legal name, you register that assumed name - see Maine DBA filing. Forming an entity gives you a liability shield a sole proprietorship lacks, and you can adopt an operating agreement to govern it. For the full startup path, see how to start a business in Maine and Maine articles of organization; when you wind down, see how to dissolve an LLC in Maine.

EIN and Federal Steps

Most Maine businesses also need a federal Employer Identification Number (EIN), which the IRS issues free. You need an EIN if you have employees, operate as a multi-member LLC or corporation, or a bank requires one to open a business account; a single-member LLC with no employees can often use the owner's Social Security number but frequently gets an EIN anyway. Never pay a third-party site for an EIN - apply directly with the IRS. See how to get an EIN and the state-specific EIN in Maine walkthrough.

Put together, the typical Maine sequence is: choose and register your entity (if any) with the Secretary of State, get an EIN, register for sales tax and withholding with MRS, secure any professional license through OPOR, and clear local permits with your town. Confirm every fee and requirement with the agency itself, since amounts and rules change from year to year.

Frequently Asked Questions

Does Maine require a general business license?

No. Maine has no single general-purpose statewide business license that every business must hold. Instead, obligations depend on what you sell and your profession: sales tax registration with Maine Revenue Services, occupational licenses through the Office of Professional and Occupational Regulation, and local permits from your town or city.

How do I register for sales tax in Maine?

Register as a retailer with Maine Revenue Services to get a sales tax registration certificate before making taxable sales. Registration is free and is done through the Maine Tax Portal. Maine's general sales and use tax rate is 5.5%, and you then collect and remit the tax on the assigned schedule.

Who issues professional licenses in Maine?

The Office of Professional and Occupational Regulation, part of the Maine Department of Professional and Financial Regulation, licenses many trades and professions. Fees and requirements vary by board. Some occupations are licensed by separate agencies, so confirm the correct board for your field before operating.

Do I need a local business license in Maine?

Sometimes. Maine towns and cities issue their own licenses and permits for activities such as food service, lodging, liquor, and amusements, and may require zoning or health approvals. There is no uniform statewide rule, so check with the municipal clerk where you operate.

Do I have to register my business entity in Maine?

If you form an LLC or corporation, you file formation documents with the Maine Secretary of State, Bureau of Corporations, Elections and Commissions, and file an annual report. A sole proprietor using an assumed name registers that name locally. Registering the entity is separate from licensing.

Is a Maine sales tax registration the same as a business license?

No. A sales tax registration authorizes you to collect and remit sales tax; it is not a general license to operate. Many businesses need the sales tax registration, one or more professional or local licenses, and an entity registration, which are all distinct requirements.

Related

• Business Licenses (cluster hub)
• How to Form an LLC in Maine
• Maine LLC Tax Filing
• How to Get an EIN
• Sole Proprietorship in Maine
• Business License in Connecticut (sibling)

Sources

1. Maine Secretary of State - Bureau of Corporations, Elections and Commissions (entity registration).
2. Maine Secretary of State - Corporate Information Services and Fees.
3. Maine Revenue Services - Sales, Use & Service Provider Tax (retailer registration; 5.5% rate).
4. Maine Revenue Services - Maine Revenue Services (state tax agency).
5. Maine Revenue Services - Employer Withholding.
6. Maine Department of Professional and Financial Regulation - Office of Professional and Occupational Regulation.
7. Maine Department of Professional and Financial Regulation - Department Home (PFR).
8. Maine.gov - Starting a Business in Maine.
9. Maine Department of Economic and Community Development - Starting a Business.
10. IRS - Business Structures.
11. IRS - Employer ID Numbers (EINs) (free).
12. IRS - Apply for an EIN Online.
13. Cornell Law School Legal Information Institute - License (Wex).
14. Cornell Law School Legal Information Institute - Sales tax (Wex).
15. Cornell Law School Legal Information Institute - Limited liability company (Wex).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with Maine Revenue Services, the Maine Office of Professional and Occupational Regulation, and your municipal clerk before acting.