Idaho LLC governance: a uniform-act floor, no required operating agreement, and a community-property twist

Idaho governs LLCs under the modern uniform act, so its rules look like the other floor states: the duties of loyalty and care and the obligation of good faith cannot be eliminated by the operating agreement, and distributions default to equal shares. Two features deserve attention before the general mechanics on the site’s default rules and freedom of contract guides. First, Idaho requires no written operating agreement at all, which sounds permissive and leaves many Idaho LLCs running on the statutory defaults. Second, Idaho is a community-property state, so an operating agreement that ignores the community-versus-separate character of the members’ interests hands that question to default community-property law, which can surprise a couple later.

The floor, and the agreement Idaho does not require

Start with the mandatory duties and the optional agreement.

In Idaho, the operating agreement cannot eliminate the duties of loyalty and care or the obligation of good faith.

Under Idaho Code Section 30-25-409, members and managers owe the duties of loyalty and care and an obligation of good faith, and Section 30-25-105 provides that the operating agreement may not eliminate them, though it may identify permitted activities and set standards that are not manifestly unreasonable. So Idaho is a floor state, like Connecticut and Iowa, and a manager cannot draft himself out of accountability the way a Delaware or Kansas agreement could. But Idaho pairs that floor with an unusual permissiveness about the agreement itself.

Idaho requires no written operating agreement, so an Idaho LLC that is not deliberately papered runs on the statutory defaults.

Under Idaho Code Section 30-25-110, Idaho does not require a written operating agreement; an oral or implied agreement can qualify. That is convenient and a trap, because an LLC with no real agreement is governed entirely by the default rules, including the equal-shares distribution default that unequal partners rarely intend. The lesson is the familiar one: the absence of a requirement is not a reason to skip the agreement; it is the reason not to, because nothing else will set the split or use the room the act allows on duties. Idaho uses its own terminology here, calling the person named to manage the company in the certificate a governor, a member in a member-managed LLC and a manager in a manager-managed one, but the substance follows the uniform act.

The community-property twist

Here is the Idaho-specific point an operating agreement should address.

Because Idaho is a community-property state, an agreement that ignores the community-versus-separate character of the members’ interests leaves it to default law.

In a community-property state, an interest a married member acquires during the marriage is generally community property, shared with the spouse, unless an agreement provides otherwise. An operating agreement that says nothing about this leaves the character of each married member’s interest to default community-property law, which can produce results the members did not plan for: on a divorce, a spouse may have a community claim to half the interest, and, as the protection page explains, the community character affects creditor exposure as well. So a careful Idaho operating agreement does more than a common-law state’s: it can address whether the members’ interests are held as community or separate property, and a couple who wants an interest treated as one spouse’s separate property should document that, both for protection and for clarity on divorce. This is the seam that a template drafted for a common-law state misses entirely, because it never contemplates the community-property overlay Idaho brings.

The bottom line

Idaho uses the uniform act, so the duties of loyalty and care and the obligation of good faith are a floor the operating agreement cannot eliminate under Section 30-25-105.

Distributions default to equal shares under Section 30-25-404, so an LLC with unequal contributions must set the split in the agreement.

Idaho requires no written operating agreement, so an undocumented Idaho LLC runs on the defaults, which is a reason to draft one, not to skip it.

Because Idaho is a community-property state, the agreement should address whether the members’ interests are community or separate property.

A couple who wants an interest treated as one spouse’s separate property should document it, both for protection and for clarity on divorce.

What this page does not cover

This page is about the rules that run your company from the inside. How creditors reach a member’s interest, the homestead, and the community-property exposure are on the protection page. Idaho’s flat 5.3% income tax, the absence of a franchise or transfer tax, and the lack of a series LLC are on the structure and cost page. The $100 formation fee and the free but required annual report are on the filing page.

Last verified August 2026.