The Certificate of Formation creates your LLC on paper. The Operating Agreement decides what the company actually does, who gets to decide it, and what happens when something goes wrong. Most owners have paid more attention to the document that doesn't govern their business than to the one that does, which is why the document that actually governs it is often a template they barely remember signing.

That's backwards. The filing with the Secretary of State is public-facing paperwork, cheap to produce and largely uniform across entities. The OA is the contract among the members (or the sole member, acting in two capacities) that sets the operating rules, the governance defaults, the triggers for transfer and buy-sell events, and the mechanism for resolving disputes. When the OA is silent or vague, Texas default rules fill the gap, and the default rules are rarely what a business owner would actually choose if they'd been asked.

Our working premise is that an operating agreement is a governance document first and a compliance artifact second. Drafted well, it's one of the most valuable assets the business owns. Drafted poorly, it's a liability waiting to be discovered the first time the business has to rely on it.

What the Certificate of Formation Does and Doesn't Do

The Certificate of Formation is a short public filing. It names the entity, designates a registered agent, states the entity's duration (usually perpetual), and indicates whether the LLC will be member-managed or manager-managed. That's close to all of it. The Certificate doesn't address capital contributions, profit and loss allocations, distribution policy, voting rights, transfer restrictions, buy-sell terms, or any of the governance questions that determine how the business actually functions.

Texas law expects the OA to do that work. The Texas Business Organizations Code permits members to set their own rules by agreement on almost every internal matter, and it supplies default rules only where the agreement is silent. Those defaults are narrower than most owners assume. Voting is per-capita rather than weighted by ownership (TBOC § 101.354), which surprises owners of LLCs where one member holds 90 percent and expects 90 percent of the vote. Distributions follow the agreed value of each member's contributions rather than a straight ownership-percentage split (§ 101.201). Fundamental transactions (mergers, conversions, sales of substantially all assets) require the approval of a majority of all members, not unanimous consent (§ 101.356(c)); the one place unanimity is the statutory default is amendments to the Certificate of Formation itself (§ 101.356(d)). For many businesses, these defaults are fine. For many others, they produce outcomes the owners would have drafted around if they'd known to.