Is an operating agreement required for South Dakota LLCs?

No, South Dakota does not legally require LLCs to have an operating agreement. However, creating one is strongly recommended as it establishes clear business rules, protects your limited liability status, and prevents disputes among members.

Can I write my own South Dakota LLC operating agreement?

Yes, you can draft your own operating agreement for your South Dakota LLC. However, it's advisable to use a professional template or consult an attorney to ensure all necessary provisions are included and comply with South Dakota law.

Does my South Dakota LLC operating agreement need to be notarized?

No, South Dakota does not require LLC operating agreements to be notarized. However, having it notarized can add an extra layer of legal validity and may be beneficial if the agreement is ever disputed in court.

What happens if my South Dakota LLC doesn't have an operating agreement?

Without an operating agreement, your LLC will be governed by South Dakota's default LLC statutes. This means less flexibility in management structure, profit distribution, and member rights, potentially leading to disputes and unfavorable default rules.

Can I amend my South Dakota LLC operating agreement after formation?

Yes, you can amend your operating agreement at any time, provided you follow the amendment procedures outlined in the original agreement. Most operating agreements require unanimous or majority member consent for modifications.

South Dakota LLC Operating Agreement: Essential Guide + Free Template

Protect your LLC with a comprehensive operating agreement that meets South Dakota requirements and safeguards your business interests.

By Edmond Hui · Last updated: January 2026

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State Requirements

Required By Law	no
Must Be Filed	no
Special Rules	None beyond standard requirements

What to Include in Your Operating Agreement

Ownership & membership

Define each member's ownership percentage, capital contributions, and membership interests. This section establishes the foundation of your LLC's ownership structure and prevents future disputes.

Management structure

Specify whether your LLC is member-managed or manager-managed and outline decision-making authority. Clear management roles prevent confusion and ensure smooth daily operations.

Voting rights

Establish voting procedures, quorum requirements, and which decisions require member approval. This protects minority members and ensures democratic decision-making for important business matters.

Profit/loss allocation

Detail how profits, losses, and distributions will be allocated among members. This section should align with your tax strategy and member expectations for returns on investment.

Member duties

Define each member's responsibilities, time commitments, and fiduciary duties to the LLC. Clear expectations prevent misunderstandings and ensure all members contribute appropriately.

Dissolution process

Outline procedures for voluntary dissolution, member withdrawal, and asset distribution. Planning for these scenarios protects your investment and ensures orderly business wind-down when necessary.

Amendment procedures

Establish requirements for modifying the operating agreement, including voting thresholds and documentation. This flexibility allows your agreement to evolve with your changing business needs.

Frequently Asked Questions

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