How to Register a Foreign LLC in Maryland (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 20, 2026 · Last updated Aug 20, 2026

An out-of-state LLC registers in Maryland by filing a Foreign Limited Liability Company Registration with the Maryland State Department of Assessments and Taxation (SDAT). The filing fee is $100. If the LLC already did business in Maryland before registering, a $200 penalty must accompany the filing. Registered foreign LLCs then owe a $300 annual report fee.

Quick Answer

Filing: Foreign Limited Liability Company Registration
Agency: Maryland State Department of Assessments and Taxation (SDAT)
Portal: Maryland Business Express
Registration fee: $100
Late-registration penalty: $200 if the LLC already did business in Maryland
Annual report fee: $300 per year for a foreign LLC
Amendment fee: $50
EIN: $0 - free from the IRS

What Counts as a Foreign LLC in Maryland

Maryland calls any limited liability company organized outside the state a foreign LLC, whether it was formed in Delaware, in Texas, or in another country. An LLC created by filing Maryland Articles of Organization is domestic; every other LLC that wants to do business in Maryland registers with SDAT first.

Registration is a permission slip, not a re-formation. The company keeps its home-state charter, its formation date, its operating agreement, and its EIN. What changes is that Maryland now has a record of the entity, an in-state agent to accept service of process, and a taxpayer to bill for the annual report. If you have not formed an entity anywhere yet, compare this route against forming a Maryland LLC directly.

When Maryland Requires Registration

SDAT's guidance for non-Maryland entities is direct: a foreign business that is doing business in Maryland must register before it does so. Doing business generally means having a physical presence, an office, employees, inventory, or a continuing course of in-state activity. Isolated transactions, holding meetings, maintaining bank accounts, and defending a lawsuit do not by themselves require registration.

Two practical triggers push most companies over the line. The first is hiring a Maryland-based employee, which creates withholding obligations and usually a registration expectation. The second is applying for a state or county license: Maryland licensing offices routinely check SDAT status first, so the registration has to precede the Maryland business license. Owning or leasing real property used in the business is a third common trigger, and it also puts the entity on the personal property return radar.

Registering late is not fatal, but it is expensive. SDAT charges a $200 penalty on top of the $100 registration fee when the LLC has already been doing business in Maryland before it files.

Step 1: Clear the Name

Maryland will not register a foreign LLC under a name that conflicts with a name already on SDAT's records. Search the Maryland business entity search for your exact legal name before filing. If it is unavailable, the LLC registers under an assumed name used only in Maryland and states that name on the registration - the same idea as a Maryland trade name filing.

An availability check at SDAT is not a brand clearance. A name can pass the entity database and still collide with a registered trademark. If the name is doing marketing work, run a separate trademark search before you print anything.

Step 2: Appoint a Maryland Resident Agent

Maryland uses the term resident agent rather than registered agent, but the function is identical. The agent must be a Maryland resident individual or a Maryland corporation, with a physical street address in the state where process can be delivered. A post office box does not satisfy the requirement, and the agent's address becomes public record.

The resident agent's name, address, and signature appear on the registration form. Commercial agents set their own annual fee; the state does not regulate it. See Maryland resident agent requirements and the national registered agent guide. If the agent resigns and you do not replace them, SDAT can forfeit the registration.

Step 3: File the Foreign LLC Registration

The filing itself is the Foreign Limited Liability Company Registration form, submitted to SDAT's Charter Division either on paper or through Maryland Business Express. The form asks for the LLC's legal name, the name it will use in Maryland if different, the jurisdiction and date of formation, the principal office address, the resident agent, and the date the LLC first did or will do business in Maryland - the answer that determines whether the $200 penalty applies.

The registration fee is $100. Later changes to the registration - a name change, a change in home jurisdiction - are made on a Certificate of Amendment to the foreign registration, which carries a $50 fee. Expedited handling is available for an additional charge published on SDAT's fee schedule; confirm the current expedite amount before you rely on it.

Step 4: Register for Maryland Taxes

SDAT registration is separate from tax registration. Use the Comptroller of Maryland combined registration process to open sales and use tax, employer withholding, and any other accounts your activity requires. If the LLC has Maryland employees, add unemployment insurance registration with the Maryland Department of Labor.

The LLC's federal classification carries into Maryland: disregarded entities, partnerships, and corporations each map to the matching Maryland return. See Maryland LLC tax filing, Maryland self-employment tax for the owner-level cost, and S-corp vs LLC if you are weighing an election. Most registrations require a federal EIN, which the IRS issues free of charge; non-U.S. owners without a Social Security number should read what an ITIN is first.

The $300 Annual Report

Every LLC on SDAT's rolls, foreign included, files an Annual Report. The filing fee for a foreign limited liability company is $300 per year. Businesses that own or lease personal property in Maryland or hold a Maryland trader's license also complete the Business Personal Property Return that travels with the annual report.

The annual report is what keeps the registration in good standing. Missing it leads to forfeiture of the right to do business in Maryland, and reinstating a forfeited registration means filing every missed report and paying every missed fee. See Maryland annual report requirements for the due date and mechanics, and Maryland LLC cost for how the $300 compares with the domestic figures.

Maryland Foreign LLC Fees

These are SDAT charter fees, set by the state and payable to the Department of Assessments and Taxation.

Item	Agency	Fee
Foreign LLC registration	SDAT	$100
Penalty - already doing business before registering	SDAT	$200
Amendment to foreign LLC registration	SDAT	$50
Annual report - foreign LLC	SDAT	$300 per year
Expedited service	SDAT	See current fee schedule
Federal EIN	IRS	$0 (free)

Cancelling the Registration

When the LLC stops doing business in Maryland, file a cancellation of the foreign registration with SDAT rather than letting it lapse. Until the registration is cancelled, the $300 annual report keeps accruing and an unpaid report can push the entity into forfeiture, which complicates any later return to the state.

Close the Comptroller accounts in the same pass, and confirm the final withholding and sales tax returns have been filed. Cancelling a foreign registration does not dissolve the company; the LLC still exists in its home state. If you are winding the whole business down, see how to dissolve an LLC in Maryland and the national dissolution guide.

Common Mistakes

Three errors account for most rejected Maryland foreign registrations. The first is naming a resident agent with a post office box or an out-of-state address. The second is answering the "date first did business in Maryland" question with a past date while omitting the $200 penalty, which causes SDAT to return the filing. The third is registering the wrong entity type - filing the LLC form for what is actually a corporation or a limited partnership, each of which has its own form and fee.

A fourth, quieter mistake is treating registration as the end of the process. Registration with SDAT does not obtain a trader's license, a county permit, or a sales tax account. Work through business licensing and the Comptroller registrations as separate steps, and keep the glossary handy for the terminology differences between states.

Frequently Asked Questions

How much does it cost to register a foreign LLC in Maryland?

The Foreign Limited Liability Company Registration carries a $100 fee payable to the Maryland State Department of Assessments and Taxation. If the LLC was already doing business in Maryland before it registered, a $200 penalty must accompany the filing, bringing the total to $300 in that situation.

What is the Maryland annual report fee for a foreign LLC?

SDAT charges $300 per year for a foreign limited liability company's annual report. The same report covers the Business Personal Property Return for entities that own or lease personal property in Maryland or hold a Maryland trader's license. Missing the report can lead to forfeiture of the registration.

Does a foreign LLC need a Maryland resident agent?

Yes. Maryland requires a resident agent who is either an individual Maryland resident or a Maryland corporation, with a physical street address in the state. A post office box is not acceptable. The resident agent's name and address are stated on the registration and are public record.

Where do I file a Maryland foreign LLC registration?

With the Maryland State Department of Assessments and Taxation, either on paper to the Charter Division or online through Maryland Business Express. SDAT publishes the Foreign Limited Liability Company Registration form and the corporate charter fee schedule on its website.

Do I need a new EIN to register in Maryland?

No. Foreign registration does not create a new legal entity, so the LLC keeps the federal employer identification number it already has. You use that EIN when you open Comptroller of Maryland tax accounts. The IRS issues EINs at no cost, so there is never a reason to pay for one.

What does an amendment to a Maryland foreign registration cost?

A Certificate of Amendment to the Limited Liability Company registration for a foreign LLC carries a $50 fee at SDAT. File it when the LLC's legal name, its home jurisdiction, or another fact stated on the original registration changes, rather than waiting for the next annual report.

Sources

Maryland SDAT - Foreign Limited Liability Company Registration ($100 fee; $200 penalty if already doing business).
Maryland SDAT - Corporate Charter Fee Schedule (registration, amendment, and annual report fees).
Maryland SDAT - Non-Maryland (Foreign) Business Entities.
Maryland SDAT - Certificate of Amendment to the LLC Registration (foreign) ($50).
Maryland Business Express - Register Your Business in Maryland.
Maryland SDAT - Departmental Forms and Applications.
Comptroller of Maryland - Business Taxes (state tax accounts).
IRS - Get an Employer Identification Number (free EIN).
IRS - Limited Liability Company (LLC) (federal classification).
Legal Information Institute (Cornell) - 26 CFR 301.7701-3 (entity classification election).

LegalGlass provides general information for educational purposes and is not legal advice, is not a law firm, and is not a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current amounts with the Maryland State Department of Assessments and Taxation and the Comptroller of Maryland before acting.