Foreign LLC Registration and Qualification Requirements in Delaware

At a glance

Requirements one by one

Registration before doing business

6 Del. C. § 18-902 requires a foreign LLC to register with the Secretary of State before doing business in Delaware. The filing is an application for registration under Subchapter IX of the Delaware Limited Liability Company Act.

The positive boundary is not exhaustively defined. Section 18-912 supplies specific exclusions, but an activity outside them is not automatically enough; whether a mixed or novel pattern is “doing business” remains fact-specific.

Safe harbors, including the no-day isolated transaction

6 Del. C. § 18-912 excludes proceedings; internal affairs; bank accounts; securities offices, trustees, and depositories; independent-contractor sales; orders accepted outside Delaware; creating or acquiring debt; debt collection, foreclosure, and holding property acquired through that enforcement; interstate commerce; insurance-company activity; and status solely as a member or manager of a domestic or foreign LLC.

One Delaware-specific exclusion covers an out-of-state machinery, plant, or equipment sale whose Delaware installation needs technical engineers or skilled employees not generally available, when the seller furnishes only those installation services. The isolated-transaction exclusion has no fixed number of days, but it does not cover a transaction in the course of similar transactions. Delaware has no current general safe harbor for owning property; the listed holding protection is tied to property acquired through debt enforcement.

Application and home-state evidence

The application under 6 Del. C. § 18-902 states the exact foreign name and any different Delaware registration name, formation jurisdiction and date, an authorized person's affirmation that the LLC validly exists, the specific Delaware business or purpose, registered office and agent, the Secretary-of- State fallback appointment, and the date business first began or is expected to begin in Delaware. The official form requires an authorized-person signature and printed name; it has no notary block.

The accompanying certificate must be issued by an authorized officer of the formation jurisdiction and dated no earlier than six months before filing. Section 18-902(2) requires an oath-of-translator translation only when the certificate is in a foreign language; it states no further authentication rule for a certificate from another U.S. jurisdiction.

Name, registered office, and agent

6 Del. C. § 18-904(a) requires the registration name to contain “Limited Liability Company,” “L.L.C.,” or “LLC” and to be eligible as a domestic LLC name. A name that is not distinguishable may still be used with the other listed entity's written consent filed with the Secretary.

Under 6 Del. C. § 18-904(b), the registered agent's business office must be identical with the Delaware registered office. The agent may be a Delaware- resident individual or a listed domestic or Delaware-authorized foreign entity. Unlike Delaware's domestic-LLC agent rule, the foreign LLC being registered is expressly excluded from serving as its own foreign registered agent.

Submission, $200 fee, and filing effect

The Division accepts documents through its electronic submission service or by mail; the upload service is not direct online filing. The base fee is $200 under 6 Del. C. § 18-1105(a)(6), unchanged by the August 1 amendment. Optional expedited processing is separately available, and the Division publishes the current service schedule.

Under 6 Del. C. § 18-903, the Secretary dates, endorses, files, and indexes an accepted application, then returns an endorsed certified copy. Neither that section nor the official foreign-LLC form provides a delayed registration date.

Consequences, payment cure, and service fee

6 Del. C. § 18-907 bars the LLC from maintaining a Delaware action until it has registered and paid all fees and penalties for every year or part-year of unregistered business. The fixed fine is $200 for each year or part of a year. Registration plus the required payments cures that statutory court bar.

The lapse does not invalidate a contract or act, block the other contracting party's suit, prevent the LLC from defending, or remove the member-manager liability shield solely because registration was missing. Under 6 Del. C. § 18-908, the Court of Chancery may enjoin the LLC or its agent from continuing unregistered business.

6 Del. C. § 18-911(a) appoints the Secretary of State for civil process arising from the unregistered Delaware business. Since August 1, 2026, subsection (c) directs the serving plaintiff to pay the fee prescribed by 6 Del. C. § 18-1105(a)(13), currently $100. In 85 Del. Laws ch. 273, § 21 replaced the former fixed $50 language, while §§ 22 and 45 set the current fee and made both changes effective on August 1. The base registration fee remains $200.

What trips people up

• “Isolated” has no 30- or 90-day clock. The transaction must instead fall outside a course of similar transactions.
• Property ownership is not broadly protected. The express harbor covers holding property acquired through debt enforcement, not ordinary investment or operating property.
• The Division asks for a specific purpose. Its form says a general purpose statement is insufficient.
• Electronic submission is not instant online filing. The Division reviews and processes the uploaded document before the statutory filing occurs.
• The August 1 change did not raise the registration fee. It changed service and expedite provisions; the foreign application remains $200.

Common questions

How recent must the home-state certificate be?

It must be dated within the six months before the Delaware filing date.

Can the foreign LLC act as its own Delaware registered agent?

No. Section 18-904(b) excludes the foreign LLC itself from the eligible foreign- entity agent category.

Can an unregistered LLC defend a Delaware lawsuit?

Yes. Section 18-907 preserves defense rights while conditioning the LLC's own Delaware action on registration and payment.

Does one Delaware transaction require registration?

Not when it is isolated and outside a course of similar transactions. The statute sets no completion deadline for that exclusion.

Statutes and sources

• 6 Del. C. §§ 18-901 to 18-912 — trigger, application, filing, name and agent, unregistered consequences, service, and complete safe-harbor list. https://delcode.delaware.gov/title6/c018/sc09/index.html (accessed 2026-08-08)
• 6 Del. C. § 18-1105 — $200 registration fee, current expedite ceilings, and the current $100 service fee. https://delcode.delaware.gov/title6/c018/sc11/index.html (accessed 2026-08-08)
• Delaware Division of Corporations foreign-LLC form (rev. 10/2016) — application fields, authorized signer, specific-purpose instruction, six- month evidence, $200 fee, and stamped-copy procedure. https://corpfiles.delaware.gov/ForeignLLC.pdf (accessed 2026-07-27)
• Delaware Division of Corporations document-submission guidance — upload route and its submission-only limitation. https://corp.delaware.gov/document-upload-service-information/ (accessed 2026-07-27)
• 85 Del. Laws Chapter 273 (2026 HB 400) — the August 1, 2026 service-fee and expedite-ceiling changes. https://legis.delaware.gov/SessionLaws?volume=85&chapter=273 (accessed 2026-08-08)