LLC Operating Agreement Requirements in Idaho

At a glance

Requirements one by one

Governing law and document name

Idaho Code § 30-25-101 names the Idaho Uniform Limited Liability Company Act. Idaho Code § 30-25-102(a)(9) defines “operating agreement” broadly enough to cover oral, implied, record-form, combined, and sole-member terms.

Required or optional

The agreement is optional. Idaho Code § 30-25-105(a)-(b) lets it govern the listed internal matters and makes Chapter 25 the fallback for a matter it does not address. Formation instead occurs when the certificate becomes effective under Idaho Code § 30-25-201(d).

Permitted form and signatures

Idaho Code § 30-25-102(a)(9) recognizes oral, implied, record-form, and combined agreements. Chapter 25 states no general agreement-level signature, witness, acknowledgment, or notarization formality.

Adoption timing and effect

Idaho Code § 30-25-106(c) permits prospective initial members to agree before formation and permits one prospective sole member to assent to terms. Those terms become the operating agreement when the LLC forms. The Act states no general later-adoption deadline.

Single member and assent

Idaho Code § 30-25-106(a)-(b) binds the LLC without separately manifested assent and deems each person who becomes a member to assent. Subsection (c) separately validates preformation terms adopted by a prospective sole member.

Management and authority defaults

Idaho Code § 30-25-407(a)-(c) defaults to member management and equal management rights. A member majority resolves ordinary-course differences; all members must approve outside-course acts and amendments. Manager management exists only when the agreement uses the statutory language or words of similar import.

Idaho Code § 30-25-301 says membership alone creates no agency. Idaho Code § 30-25-302(a), (c) provides the public statement-of-authority route for a position's or person's power to transfer real property or otherwise bind the LLC as to nonmembers.

Voting, economic, and transfer defaults

The default management vote is per person. Idaho Code § 30-25-407(b)-(c) gives members or managers equal rights and uses a majority of people for ordinary- course differences. Idaho Code § 30-25-404(a) also defaults interim distributions to equal shares.

Idaho Code § 30-25-401(c) generally requires all-member approval for a later member unless the agreement or a covered transaction supplies another route. Idaho Code § 30-25-502(a)-(b) makes a transfer economic only: the transferee gets distributions but not management or ordinary information rights.

Nonwaivable rules and duties

Idaho Code § 30-25-105(a)-(c) preserves good faith, reasonable information rights, filing rules, dissolution grounds, member actions, misconduct liability, and nonparty rights. Idaho Code § 30-25-105(d)-(e) permits loyalty, care, and other fiduciary-duty changes only within the stated bad-faith, misconduct, knowing-law-violation, and manifest-unreasonableness limits. Idaho Code § 30-25-409(d) supplies the contractual good-faith obligation.

The agreement cannot vary the judicial-dissolution grounds in Idaho Code § 30-25-701(a)(4) or unreasonably restrict the direct action described in Idaho Code § 30-25-801(a). Information restrictions remain subject to the reasonableness rule and company burden in Idaho Code § 30-25-410(h).

Amendment, filing, and records

Idaho Code § 30-25-407(b)(4)(B), (c)(3)(B) defaults to unanimous amendment in either management form. Idaho Code § 30-25-107(a) also enforces an outsider- approval or condition requirement written into the agreement.

Idaho is explicit about filing: Idaho Code § 30-25-201(c) says the Secretary of State shall not accept operating agreements. Under Idaho Code § 30-25-107(d), the agreement prevails internally over a conflicting effective filing, while a relying outsider may use the filed record. Idaho Code § 30-25-410(h) permits reasonable conditions on information access and use, but § 30-25-105(c)(8) forbids unreasonable restrictions.

What trips people up

The defaults count people, not percentages. Equal management rights, a member-majority ordinary vote, and equal interim distributions apply unless the agreement changes them.

Membership alone creates no agency. A private management clause and a public statement of authority serve different functions.

The agreement cannot be filed. The current formation section expressly says the Secretary of State will not accept it.

Common questions

Can an Idaho LLC have an oral operating agreement? Yes. Idaho Code § 30-25-102(a)(9) expressly includes oral and implied terms.

Does a later member have to sign? Idaho Code § 30-25-106(b) deems a person who becomes a member to assent, without a general separate signature rule.

Does a transferee automatically receive voting rights? No. Idaho Code § 30-25-502 separates distributions from management and ordinary information rights.

Statutes and sources

• Idaho Code §§ 30-25-101, 30-25-102(a)(9), and 30-25-105 — Act name, flexible form, optional status, agreement scope, and statutory limits. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-101/, https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-102/, and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-105/ (accessed 2026-07-26)
• Idaho Code §§ 30-25-106 and 30-25-107 — assent, preformation terms, outsider approvals, and filed-record conflicts. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-106/ and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-107/ (accessed 2026-07-26)
• Idaho Code § 30-25-201(c)-(d) — formation and operating-agreement filing prohibition. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-201/ (accessed 2026-07-26)
• Idaho Code §§ 30-25-301 and 30-25-302 — no agency from membership and filed authority statements. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-301/ and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-302/ (accessed 2026-07-26)
• Idaho Code §§ 30-25-401, 30-25-404, and 30-25-407 — admission, equal distributions, management, voting, outside-course acts, and amendment. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-401/, https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-404/, and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-407/ (accessed 2026-07-26)
• Idaho Code §§ 30-25-409 and 30-25-410 — good faith and information rights. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-409/ and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-410/ (accessed 2026-07-26)
• Idaho Code § 30-25-502 — economic-only transfer default. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-502/ (accessed 2026-07-26)
• Idaho Code §§ 30-25-701(a)(4) and 30-25-801(a) — judicial dissolution and direct actions. https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-701/ and https://legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/SECT30-25-801/ (accessed 2026-07-26)