Corporation-to-LLC Statutory Conversion Approval and Filing Requirements in South Dakota

At a glance

Requirements one by one

Direct route, plan, and approval

South Dakota permits a domestic corporation to convert directly into a South Dakota LLC or a foreign LLC when foreign law permits. SDCL § 47-1A-950 and § 47-1A-950.1.

The required plan states the LLC type and any foreign jurisdiction, terms, share-to-interest or other consideration mechanics, and the full resulting organic documents. It may use objective external facts. After approval, a plan amendment cannot change holder consideration, the resulting organic documents beyond the comparable allowance, or another term in a materially adverse way. SDCL §§ 47-1A-951 to 47-1A-951.2.

The board adopts and submits the plan and ordinarily recommends it. A conflict or special circumstance may displace the recommendation, but the board explains its basis; it may condition submission on any basis. SDCL § 47-1A-952(1)-(3).

Each class or series votes as its own group at a quorum holding at least a majority of votes entitled on conversion. The general voting rule supplies the approval threshold: more votes cast for than against, unless the articles or board require more. SDCL § 47-1A-725 and § 47-1A-952(5).

Notice, consent, and new liability

Every voting and nonvoting holder receives 10 to 60 days' meeting notice. The notice states the conversion purpose and includes the plan or a summary plus the LLC's resulting organic documents. SDCL § 47-1A-705 and § 47-1A-952(4).

Written action is available only when every shareholder entitled to vote signs. South Dakota provides no lower-consent route. Each holder who would acquire owner liability separately signs written consent to that liability. SDCL § 47-1A-704 and § 47-1A-952(7).

Domestic and foreign filings

For a South Dakota LLC result, an officer or authorized representative signs Articles of Entity Conversion. They state the old and new names, LLC entity type, and due approval and contain or attach the LLC's public organic document. A single filing may combine any conversion record required by the LLC law when it satisfies both statutes. SDCL § 47-1A-953 and § 47-1A-953.3.

The LLC Articles of Organization content includes name, designated office, registered-agent information, each organizer, any nonperpetual duration, manager-management and initial managers, the member-liability election, and series terms when applicable. SDCL § 47-34A-203.

A foreign LLC result instead uses officer- or representative-signed Articles of Charter Surrender stating the corporation, conversion and approval, destination jurisdiction, and postconversion executive-office address if the LLC is a nonfiling entity. SDCL § 47-1A-954.

Fee, effective time, abandonment, and continuity

Both the fee statute and current Secretary of State schedule set a $150 fee for Articles of Entity Conversion and for Articles of Charter Surrender. Articles of correction cost $25. SDCL § 47-1A-122.

An accepted record takes effect when filed, at another stated time that day, or at a delayed time and date no later than the 90th day. Correction may address an inaccuracy, execution defect, or defective electronic transmission and relates back except for adverse reliance. SDCL §§ 47-1A-123 to 47-1A-124.2.

Unless the plan says otherwise, the board may abandon an approved conversion without shareholder action before effectiveness. If the conversion filing is already on file for a delayed date, an officer or representative files the abandonment statement before that date. SDCL § 47-1A-956.

At effectiveness, title to tangible and intangible property remains in the LLC, liabilities remain, and a pending proceeding continues as if conversion had not occurred. The organic documents take effect, shares reclassify under the plan, and the LLC is the same entity without interruption with the original organization date. New owner liability reaches only obligations arising after effectiveness. SDCL §§ 47-1A-955 to 47-1A-955.2.

What trips people up

Every class and series votes separately, but approval is not a majority of all entitled votes. The quorum holds at least a majority of entitled votes, and the default decision rule is more votes cast for than against.

The conversion articles are also the vehicle for the LLC public organic content. They may contain or attach the Articles of Organization, and the current fee is $150; this cell does not add the fee for a separate standalone LLC formation.

A pre-July 1, 2005 debt instrument or contract merger provision applies to conversion until later amendment. Comparable pre-2005 articles, bylaws, and director/shareholder agreements follow the same bridge rule. SDCL § 47-1A-950.4 and § 47-1A-952(6).

Common questions

Must written consent be unanimous?

Yes. Section 47-1A-704 requires every shareholder entitled to vote to sign; the conversion chapter provides no lower-consent route.

Does every shareholder receive meeting notice?

Yes. Voting and nonvoting holders receive the plan materials 10 to 60 days before the meeting. SDCL § 47-1A-952(4).

Is there a separate owner-liability consent?

Yes. Each holder who will acquire owner liability signs a separate written consent. SDCL § 47-1A-952(7).

Does conversion erase old liabilities or proceedings?

No. Liabilities remain with the LLC and pending proceedings continue as if conversion had not occurred. SDCL § 47-1A-955(2)-(3).

Statutes and sources

• SDCL §§ 47-1A-950 to 47-1A-952 authorize domestic and foreign routes and govern definitions, plan terms, amendments, board action, approval, notice, and liability consent. Accessed September 6, 2026.
• SDCL §§ 47-1A-953 to 47-1A-956 govern domestic and foreign filings, continuity, owner liability, and abandonment. Accessed September 6, 2026.
• SDCL §§ 47-1A-704 to 47-1A-705 and 47-1A-725 provide consent, notice timing, quorum, and vote rules. Accessed September 6, 2026.
• SDCL §§ 47-1A-122 to 47-1A-124.2 govern fees, effective time, delay, and correction. Accessed September 6, 2026.
• SDCL § 47-34A-203 supplies the South Dakota LLC Articles of Organization content. Accessed September 6, 2026.
• South Dakota Secretary of State filing fees confirms the $150 conversion and charter-surrender charges. Accessed September 6, 2026.