Filing a DBA in Maine means registering an assumed name that lets your business operate under a name different from its legal name. The process, cost, and filing location depend on your business type. LLCs and corporations file with the Maine Bureau of Corporations, Elections, and Commissions for $125. Sole proprietors and general partnerships file with their local city or town clerk for $10.

What Does “DBA” Mean and Why Does It Matter for Maine Businesses?

DBA stands for “doing business as.” It is the name your business uses publicly, separate from its legally registered name. In Maine, DBAs are called assumed names for domestic businesses and fictitious names for foreign businesses formed outside the state.

If your LLC is registered as “Hartwell Solutions LLC” but you want customers to find you as “Maine Digital Lab,” you need to file a DBA. Without it, operating under that alternate name violates Maine state law under 31 MRSA Section

Who Needs to File a DBA in Maine?

Maine requires all of the following to file a DBA if they operate under a name different from their legal business name: sole proprietorships, general partnerships, limited liability companies (LLCs), corporations, limited partnerships (LPs), limited liability partnerships (LLPs), and foreign companies regularly doing business in Maine.

Sole proprietors have no legal separation between themselves and their business, so their legal name is their own full name by default. Anyone operating under anything different, even “Jane Smith Cleaning” if your name is Jane Smith, needs a registered assumed name.

Real-World Reasons to File a DBA in Maine

The most practical reason is banking. A business bank account cannot be opened under a trade name without a DBA, so a business cannot operate under a registered name until one is obtained.

Other reasons include separating the owner’s name from the brand, launching a different product line without creating a new entity, aligning your business name with your domain name, and rebranding without dissolving or creating a new entity.

What a Maine DBA Does NOT Do

A DBA is only a name registration. It does not create a new legal entity, provide liability protection, or change how your business is taxed.

A sole proprietor with a DBA is still a sole proprietor. Personal assets are still at risk if someone sues the business. A DBA attached to an LLC inherits that LLC’s protections, but the DBA itself provides none. It also does not provide exclusive rights to a name. For stronger protection, apply for a federal trademark through the U.S. Patent and Trademark Office.

Maine DBA Naming Rules: What You Can and Can’t Use

Your assumed name must be clearly distinguishable from any existing business name or DBA registered in Maine. It cannot contain profanity or obscene language, falsely suggest a connection to a government agency, include entity identifiers like LLC, Corp, or Inc if you are not that entity type, use the name “Passamaquoddy” without express written consent from tribal leaders, or be fraudulent or misleading in any way.

How to Search for an Available DBA Name in Maine

Before filing, visit the Secretary of State’s website and search the Maine Corporate Name Database. Enter your intended name to check for any existing matches, including registered business names and DBAs.

For sole proprietors and general partnerships, a state-level search will not reveal DBAs filed at the local level. Contact your city or town clerk directly to search local records. Also search the U.S. Patent and Trademark Office database to check for conflicts with federally registered trademarks.

Where to File a DBA in Maine: State vs. City

This is where Maine stands out compared to other states.

LLCs, corporations, LPs, and LLPs file with the Maine Bureau of Corporations, Elections, and Commissions, part of the Secretary of State’s office. Sole proprietors and general partnerships file with the clerk’s office in the city or town where the business operates. In Portland, you file a Certificate of Sole Proprietor. In Bangor and Lewiston, you must fill out the form in person at the clerk’s office.

How to File a DBA in Maine as an LLC or Corporation

Go to the Maine Secretary of State’s website, download the “Statement of Intention to do Business Under an Assumed Name” form, and select the one that matches your entity type.

Fill it out with your legal business name, the proposed DBA, and the addresses where the DBA will be used. Submit by mail or in person. Online filing is not available as of May 2026.

Mail using USPS to: Department of the Secretary of State, Corporations, Elections and Commissions, 101 State House Station, Augusta, ME 04333. Mail using FedEx or UPS to: 111 Sewell Street, 4th Floor, Augusta, ME 04330.

How to File a DBA in Maine as a Sole Proprietor or General Partnership

Contact your local city or town clerk first. Each municipality has its own procedures. Some provide standard forms; others require you to draft your own Certificate.

Your Certificate must include your name and address, the DBA name, and either a statement that you are a sole proprietor or a description of the business purpose for general partnerships. The document must be notarized before submission. Use the Bureau of Corporations, Elections, and Commissions’ Listing of Municipal Clerks and Registrars to find your local clerk’s contact information.

Maine DBA Filing Fees, Processing Times, and Expedited Options

Entity Type	Filing Location	Standard Fee	Expedited Option
LLC, Corporation, LP, LLP	Secretary of State	$125	+$50 (24-hour), +$100 (immediate, in person)
Sole Proprietor, General Partnership	Local clerk	$10	Varies by municipality

Standard processing at the state level typically runs 10 to 15 business days. Pay the expedited fee and submit in person in Augusta if you need a faster turnaround.

Can You File a Maine DBA Online?

No. Maine does not offer online DBA filing as of May 2026. All assumed name registrations must be submitted by mail or in person. One common mistake founders make is assuming an online option exists. If mailing documents, allow extra time for processing.

How Many DBAs Can You Register in Maine?

Maine places no limit on the number of assumed names a business can hold. Each DBA requires a separate application and a $125 filing fee, or $10 at the local level for sole proprietors. Every name must comply with state regulations.

Do Maine DBAs Expire?

No. Maine DBA registrations never expire and stay active as long as the business is operational. There are no renewal fees or deadlines. If you no longer want to use a DBA, cancel it formally rather than leaving it on the record.

How to Cancel a DBA in Maine

File a termination or withdrawal statement with the Bureau of Corporations, Elections, and Commissions and pay a $20 fee. Separate forms exist for each entity type. For sole proprietors and general partnerships who filed locally, contact your city or town clerk directly, as cancellation procedures differ by municipality.

Tax Implications of Filing a DBA in Maine

Filing a DBA does not impact your tax classification. A sole proprietor with a DBA still reports income on Schedule C. An LLC with a DBA is taxed based on its existing classification, either as a disregarded entity, partnership, or corporation. The IRS and Maine Revenue Services do not recognize a DBA as a separate taxable entity. Your legal business name and EIN continue to be used for all tax filings.

Does a Maine DBA Protect Your Privacy?

No. A DBA is a public record. A sole proprietor operating from a home office may be required to publicly list that address. If privacy is a concern, forming an LLC and using a registered agent service can minimize the personal information disclosed in public records.

Common Mistakes to Avoid When Filing a DBA in Maine

Sole proprietors who submit the completed form to the Secretary of State rather than to their local clerk are rejected outright. Failing to notarize the Certificate at the city level is the most frequent reason local filings are returned. Choosing a name without checking the state database first causes delays. Submitting a single application for multiple DBA names, rather than separate applications, adds several weeks to the process.

Maine DBA FAQs

Is a Maine DBA required by law?

Yes. If your business operates under a name other than your legal business name, Maine law requires you to register it before using it.

Can I sign contracts using my DBA name?

You may conduct business using your DBA name, but legal contracts should include both your legal business name and your DBA to avoid confusion.

Do I need a separate EIN for my DBA?

No. A DBA does not create a new tax entity, so your existing EIN covers it.

Can I open a business bank account with a Maine DBA?

Yes. Most banks accept a registered DBA as the account name. A filed assumed name certificate will also be required.

What is the average approval time for a Maine DBA?

Typically, 10 to 15 business days at the state level. Local clerk processing times vary by municipality.

At EasyFiling, we have helped 10,000+ customers in 175+ countries meet U.S. business compliance requirements, including assumed-name registrations, state filings, and annual compliance. Having processed thousands of documents, we know exactly where the Maine DBA process trips founders up. If you want your Maine DBA filed the first time correctly, we are ready to help.