Nonprofit Corporation Merger Approval and Filing Requirements in Wisconsin
At a glance
| Governing law and eligible merger parties | Chapter 181, subch. X permits domestic nonstock corporations to merge with domestic/foreign constituent entity types when each governing law permits and each party approves (§ 181.1101) |
|---|---|
| Plan and treatment of membership interests | Recorded plan names parties/type/law, terms, interest conversion or consideration, and survivor organizational changes or new documents (§ 181.1102) |
| Board action and recommendation | With voting members, board approves unless articles provide otherwise; without voting members, majority of directors in office plus purpose-stated board notice (§ 181.1103(1m)(b)–(c)) |
| Member vote and voting groups | Voting members: lesser of two-thirds votes cast or majority voting power; required class vote uses same lesser-of test by class; higher governing rules/third-person approval may apply (§ 181.1103(1m)(c),(f)) |
| Member notice, plan, and consent | Voting-member meeting gets ≥20-day notice with purpose, plan/summary and applicable survivor documents; consent default ≥80% power, adjustable ≥50%; ballot only if documents permit (§§ 181.1103(1m)(d)–(e), 181.0704, .0708) |
| No voting members | No members with voting rights: majority of directors in office; board meeting notice states merger purpose; other parties approve under their law (§ 181.1103(1m)(b),(4m)) |
| Charitable assets and state review | Charitable-purpose property cannot be diverted from donated objects; entity may seek circuit-court compliance determination; later-payable gifts generally pass to survivor (§§ 181.11002, .1108) |
| Public filing and effective time | File articles with department naming parties/survivor and approvals, public charter changes, and private-plan availability; signed filing; effective on receipt or stated time/date ≤90 days later (§§ 181.11045, .0208, .0209) |
| Changes, abandonment, and simplified routes | Plan or original-approval method controls amendment/abandonment before effect; after filing, affected articles require filed signed amendment or abandonment statement (§ 181.1103(2m)–(3m)) |
Requirements one by one
Parties and plan
§ 181.1101 permits a Wisconsin nonstock corporation to merge with another domestic or foreign constituent entity if each other party's governing law permits the merger and each constituent approves as its law requires. § 181.11001(1) preserves requirements of other applicable law. A plan must be in a record under § 181.1102(1) and identify each party, its entity type and governing law, the terms, the manner of converting interests into interests, securities, obligations, money or other property, and applicable survivor documents or amendments.
Board and member approvals
For a corporation with voting members, § 181.1103(1m)(c) ordinarily requires board approval unless the articles provide otherwise, member approval, and any required third person's written approval. The member threshold is the lesser of two-thirds of votes cast or a majority of voting power, subject to greater requirements or class voting under the chapter or governing documents. Subsection (f) requires a separate class vote when the plan contains a provision that would trigger one on an articles or bylaw amendment; the class uses the same lesser-of formula within its voting group.
If the corporation has no members with voting rights, § 181.1103(1m)(b) instead requires a majority of directors in office and board-meeting notice stating the merger purpose. Under subsection (4m), every other constituent entity must also approve under its governing law.
Notice and nonmeeting routes
§ 181.1103(1m)(d) requires notice to voting members at least 20 days before a merger meeting, stating the purpose and including the plan or a summary. Disappearing-party members also receive the survivor's postmerger articles and bylaws or a summary; survivor members receive provisions that would trigger their amendment vote. If approval is solicited by consent or ballot, subsection (e) requires the same plan or summary and extra survivor information.
§ 181.0704(1r),(4) permits member written consent with at least 80% of voting power by default, or a document-specified different percentage of at least 50%; nonsigners receive notice and approval takes effect 10 days after required notice. A written ballot under § 181.0708 is available only if the articles or bylaws permit it, goes to every member entitled to vote, and must satisfy meeting-equivalent quorum and vote counts.
Charitable property and public filing
§ 181.11002(1) prohibits a merger from diverting property held for a charitable purpose from the objects for which it was donated or otherwise transferred. An entity may ask the circuit court to determine compliance with cy pres or other nondiversion law. Subsections (2)–(3) carry later-payable gifts and trust obligations to the survivor; § 181.1108 preserves a donor instrument's specific contrary direction for its stated gifts.
After all approvals, § 181.11045(1) requires articles of merger delivered to the department. They name each party and survivor, state approval, include applicable public survivor-document amendments or new documents, and state that the plan is kept at the survivor's principal office and will be provided to former interest holders on request. The plan itself therefore remains separately held. § 181.0208(1)(d)–(e) requires an authorized signature with the signer's name and capacity.
The merger takes effect with the articles under § 181.11045(4). § 181.0209(1)–(2) sets effectiveness on receipt for filing, at a specified time or otherwise close of business, and permits a stated delayed date and time no more than 90 days later.
What trips people up
§ 181.1103(2m) lets the constituents amend the approved plan or abandon the merger before effectiveness under the plan's procedure, or otherwise with the original approval vote or consent, subject to their governing laws. If articles have already been delivered and an amendment changes the articles, or the deal is abandoned, subsection (3m) requires a signed statement of amendment or abandonment filed before effectiveness. That statement names each constituent, states the change or abandonment, and confirms approval.
Common questions
Does a corporation with nonvoting members use the member vote? § 181.1103(1m)(b) assigns a corporation with no members with voting rights to the majority-of-directors-in-office route.
Must the whole plan be in the public articles? § 181.11045(1)(e)–(f) instead requires a statement that the plan is kept at the survivor's principal office and supplied on request to former interest holders.
Statutes and sources
The quotations below come from the Wisconsin Legislature's merger-approval section and linked official Chapter 181 provisions, accessed October 3, 2026.
Source links
Every statute quoted above, linked, with the date we checked it.
What does Wisconsin law mean for your facts?
You just read the general rule. Ask your own question and see which parts of current Wisconsin law apply to your situation, with citations you can check.
Opens in Ezel Pro.
- Starts from the statutes this survey is built on
- Cites every source it relies on, so you can verify it
- Chat, drafting and research in one workspace