New York: LLC Operating Agreement Requirements
The short answer
New York requires the members of a domestic LLC to adopt a written operating agreement before, when, or within 90 days after filing the articles of organization; it cannot take effect before the LLC forms. The LLC Law states no general signature, witness, or notarization condition, but its management, voting, economic, transfer, amendment, duty, and record rules apply wherever the agreement does not validly provide otherwise.
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This is the general rule in New York. Ezel applies current New York law to your specific facts and answers with citations to the statutes.
| Governing law and document name | New York Limited Liability Company Law; 'operating agreement' (§ 417) |
|---|---|
| Required or optional | Required: members shall adopt a written operating agreement (§ 417(a)) |
| Permitted form and signatures | Written; the LLC Law states no general signature, witness, acknowledgment, or notarization condition (§ 417(a)) |
| Adoption timing and effect | Before, at, or within 90 days after articles are filed; never effective before formation (§ 417(c)) |
| Single member and assent | One-member LLC permitted; later admission follows the agreement or majority-in-interest vote/written consent; assignment alone gives no governance rights (§§ 203(c), 602–604) |
| Management and authority defaults | Member-managed unless articles vest management in managers; usual-business acts bind through member/manager agency, while unusual acts need actual authorization (§§ 401, 408, 412) |
| Voting, economic, and transfer defaults | Votes follow current-profit shares; profits/losses follow recorded contribution value; assignee receives economics, not management, until admitted (§§ 402, 503, 603–604) |
| Nonwaivable rules and duties | Manager good-faith/prudent-care duty; damages and indemnity cannot cover specified bad faith, intentional misconduct/dishonesty, knowing illegality, or improper profit (§§ 409, 417(a), 420) |
| Amendment, filing, and records | Default majority-in-interest amendment; existing voting thresholds are protected, while affected-member consent applies unless the agreement/articles provide otherwise; retain copies and separately file required articles changes (§§ 402(c), (e), 417(b), 1102(a)(4), 211) |
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Requirements one by one
Governing law and document name
New York's Limited Liability Company Law calls the internal document an operating agreement.
Section 417(a) describes its permissible subject matter broadly: the LLC's business, conduct of
its affairs, and the rights, powers, preferences, limitations, or responsibilities of members,
managers, employees, and agents. Its terms must remain consistent with the LLC Law and the
articles of organization.
Required or optional
New York uses mandatory language. Section 417(a) says the members “shall adopt a written
operating agreement.” The LLC nevertheless forms when its articles take effect under § 203(d),
so formation does not wait for the agreement. The statute imposes the agreement duty without
making a missed deadline an automatic cancellation of the filed articles.
Permitted form and signatures
The agreement must be written. Section 417(a) does not add a general signature, witness,
acknowledgment, or notarization condition to that writing requirement. A particular promise or
transaction can still be subject to a separate writing, signature, approval, or filing rule.
Adoption timing and effect
Section 417(c) creates a specific window: the agreement may be entered before filing, at filing,
or within 90 days afterward. A preformation agreement can take effect when the LLC forms or on a
later date stated in the agreement, but “under no circumstances” may it become effective before
formation.
Single member and assent
Section 203(c) requires at least one member at formation, so the statute permits a one-member LLC;
that company remains subject to § 417's written-agreement rule. For later owners, § 602 makes the
operating agreement the first source for admission terms and otherwise uses a majority-in-interest
vote or written consent. Assignment is not assent to governance: §§ 603 and 604 separate the
economic assignment from admission as a member.
Management and authority defaults
Under § 401, management is vested in the members unless the articles of organization provide
for managers. If the articles make that election, § 408 places management with the managers and
uses a majority-manager vote unless the agreement provides otherwise. Section 412 (§ 412) then connects
that public choice to third-party authority: a member or manager ordinarily binds the LLC in the
usual course, while an unusual-business act binds only when actually authorized.
Voting, economic, and transfer defaults
Section 402(a) weights member votes by each member's share of current profits, not automatically
one vote per person. Section 503 allocates profits and losses as the agreement provides and, when
it is silent, by the recorded value of contributions received or promised. Under § 603, an
assignment transfers the assigned distributions and profit-and-loss allocations but not management
rights; § 604 requires the specified member approval before the assignee becomes a member unless
the agreement changes that rule.
Nonwaivable rules and duties
Section 409 states the manager's good-faith and ordinarily-prudent-person care standard. Section
417 allows the agreement to limit manager damages, but preserves liability after a final adverse
adjudication for bad faith, intentional misconduct, a knowing violation of law, improper financial
gain, and specified unlawful-distribution conduct. Section 420 (§ 420) separately bars indemnification
after a final adverse adjudication establishes material bad faith or active and deliberate
dishonesty, or an improper financial profit or advantage.
Amendment, filing, and records
The default under § 402(c)(3) is approval by a majority in interest to amend or restate the
agreement. Section 402(e) protects an existing percentage-vote requirement from being reduced
without that same percentage. Section 417(b) uses written consent of adversely affected members
for specified contribution, tax-allocation, and distribution changes unless the operating agreement
or articles provide otherwise. Section 1102 (§ 1102) requires the LLC to retain the
agreement and all amendments for inspection under reasonable standards. If a governance change
also changes the articles' member-managed or manager-managed statement, § 211 requires a separate
certificate of amendment within 90 days.
What trips people up
- The written agreement has its own clock. Filing the articles forms the LLC under § 203, but
§ 417 still directs the members to enter the agreement no later than 90 days after that filing. - Manager management must reach the public articles. An internal clause alone does not replace
§§ 401 and 408's requirement that the articles provide for manager management; § 211(d)(7)
separately requires an articles amendment when that status changes. - An economic buyer is not automatically a voting member. Sections 603 and 604 split the
assigned economic interest from admission and governance rights.
Common questions
Can members act without holding a meeting?
Yes. Section 407 permits written consents signed by members holding at least the votes needed at a
meeting, subject to any different operating-agreement rule and the statute's delivery, timing, and
notice requirements.
Does every member get one vote?
Not by default. Section 402(a) ties voting power to each member's current-profit share, while
§ 418 permits the operating agreement to use capital, per-capita, class, or another stated basis.
Must the LLC keep the agreement in New York?
No. Section 1102(a) says the required records may, but need not, be maintained in New York. Records
may also be kept in a nonwritten form if they can be converted to writing within a reasonable time.
Statutes and sources
- N.Y. Ltd. Liab. Co. Law § 203 — one-member minimum and formation time.
https://www.nysenate.gov/legislation/laws/LLC/203 (accessed 2026-07-26) - N.Y. Ltd. Liab. Co. Law §§ 401, 408, 412 — member/manager management and agency defaults.
https://www.nysenate.gov/legislation/laws/LLC/401,
https://www.nysenate.gov/legislation/laws/LLC/408, and
https://www.nysenate.gov/legislation/laws/LLC/412 (accessed 2026-07-26) - N.Y. Ltd. Liab. Co. Law §§ 402, 417–418 — voting, mandatory written agreement, timing,
amendment protections, and customizable voting classes.
https://www.nysenate.gov/legislation/laws/LLC/402,
https://www.nysenate.gov/legislation/laws/LLC/417, and
https://www.nysenate.gov/legislation/laws/LLC/418 (accessed 2026-07-26) - N.Y. Ltd. Liab. Co. Law §§ 409, 420 — manager duties, liability-limit floor, and indemnity
floor. https://www.nysenate.gov/legislation/laws/LLC/409 and
https://www.nysenate.gov/legislation/laws/LLC/420 (accessed 2026-07-26) - N.Y. Ltd. Liab. Co. Law §§ 503, 602–604 — economic allocation, admission, assignment, and
assignee rights. https://www.nysenate.gov/legislation/laws/LLC/503,
https://www.nysenate.gov/legislation/laws/LLC/602,
https://www.nysenate.gov/legislation/laws/LLC/603, and
https://www.nysenate.gov/legislation/laws/LLC/604 (accessed 2026-07-26) - N.Y. Ltd. Liab. Co. Law §§ 211, 1102 — articles amendments and company records.
https://www.nysenate.gov/legislation/laws/LLC/211 and
https://www.nysenate.gov/legislation/laws/LLC/1102 (accessed 2026-07-26)
Source links
Every statute quoted above, linked, with the date we checked it.
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