Maryland: Foreign LLC Registration and Qualification Requirements

Requirements one by one

Trigger and safe harbors

Md. Code, Corporations and Associations § 4A-1001 leaves organization,
internal affairs, and member liability to the formation state's law. Section
4A-1002 then requires registration before doing any interstate, intrastate,
or foreign business in Maryland.

Section 4A-1009 makes its safe-harbor list nonexclusive. It protects proceedings
and settlement, internal affairs, bank accounts, an isolated transaction outside
a number of similar transactions, and specified foreclosure-related acquisition,
operation, rental, and sale of property. Unlike many states, Maryland gives the
isolated transaction no fixed number of days.

The same section supplies a positive rule: a foreign LLC owning income-producing
Maryland real or tangible personal property is doing business unless the property
fits the foreclosure-related exclusions. Other activities outside the list remain
fact-specific.

Filing package

Section 4A-1002 requires the legal and any different Maryland name, formation
state and date, general character of Maryland business, resident-agent information
or SDAT fallback appointment, the required home-state office or principal-office
address, acceptable good-standing proof, and series-company status. Md. Code
§ 4A-101(c) defines the authorized person who may sign on the LLC's behalf.

The current SDAT form turns the good-standing standard into a concrete filing
rule: written existence proof equivalent to a certificate of good standing and
issued within the last 60 days. It also asks whether the LLC already did
Maryland business and requires the named resident agent's consent signature.

Name, resident agent, and local address

Md. Code § 4A-1004 allows a different Maryland registration name. Md. Code
§ 1-502(b)(1) requires an LLC designator, and § 1-504 requires record-level
distinguishability.

Md. Code § 1-101(x) permits a Maryland-resident individual or a Maryland corporation,
LLC, or limited partnership to serve as resident agent. The current form requires
a Maryland street address, rejects a P.O. box, and requires the named agent's
consent. A named private agent is not mandatory: § 4A-1002(b)(5) appoints SDAT if
no agent is named or the named agent is revoked, missing, or unservable despite
reasonable diligence.

Filing route, fee, and acceptance

SDAT accepts the paper foreign-LLC form by mail or walk-in and directs online
business registrations through Maryland Business Express. Md. Code § 1-203(b)(3)(i)
sets the base registration fee at $100. The current fee schedule lists a
$50 standard expedite charge and a 3% service charge on Business Express
payments.

Under § 4A-1003, SDAT records a conforming paid application and sends an
acknowledgment stating the date and time it was accepted for record. That
acceptance timestamp is the registration's operative filing marker.

Consequences and cure

Section 4A-1007 imposes a $200 entity penalty and bars both the foreign LLC
and a person claiming under it from maintaining a Maryland suit. Cure requires
payment of the penalty plus either registration/compliance by the LLC or a
successor, or complete cessation of Maryland business by the LLC and every
foreign-LLC successor.

The statute preserves contracts, acts, and defense rights. It appoints SDAT for
service on claims arising from the unregistered business. It also makes each
member of the unregistered LLC, and each agent who transacts the business for it,
guilty of a misdemeanor punishable by a fine up to $1,000. Md. Code
§ 4A-1008 separately lets the Attorney General seek an order restraining the
business.

What trips people up

• Interstate commerce is not a Maryland safe harbor; § 4A-1002 expressly includes
  interstate business in the registration trigger.
• The isolated-transaction exclusion has no day count, but it fails when the deal
  belongs to a number of similar transactions.
• Ordinary income-producing Maryland property is a positive registration trigger;
  the property exclusions are limited to the stated foreclosure/default path.
• A named private resident agent is optional, but a named agent must give a Maryland
  street address and consent on the current form.
• The $200 entity penalty is separate from the possible member-or-agent misdemeanor.

Common questions

Does a Maryland bank account by itself require registration?

No. Maintaining bank accounts is an express safe harbor under § 4A-1009(a)(3).

Does owning a Maryland rental property require registration?

An income-producing Maryland real property is expressly treated as doing business
unless it is property acquired and handled through § 4A-1009's specified
foreclosure/default pathway.

Can the LLC sue after registering late?

Only after satisfying § 4A-1007's cure conditions. Registration or successor
compliance is not enough by itself; the statutory $200 penalty also must be paid.

Are contracts void because the LLC registered late?

No. Section 4A-1007(b) preserves the validity of contracts and acts and the right
to defend a Maryland case.

Statutes and sources

• Md. Code, Corporations and Associations §§ 4A-1001 to 4A-1004 — governing law, trigger, application, acceptance, and Maryland name (accessed July 27, 2026).
• Md. Code, Corporations and Associations §§ 4A-1007 to 4A-1009 — consequences, cure, restraint, safe harbors, and income-property trigger (accessed July 27, 2026).
• Md. Code, Corporations and Associations §§ 1-101, 1-502, and 1-504 — resident-agent eligibility, LLC identifier, and distinguishability (accessed July 27, 2026).
• Md. Code, Corporations and Associations § 1-203 — $100 registration fee (accessed July 27, 2026).
• SDAT foreign-LLC registration form, foreign-business page, and charter fee schedule — current form, 60-day proof, agent consent/address, filing routes, fees, and prior-business penalty (accessed July 27, 2026).