Corporate Board Meeting and Written-Consent Requirements in Michigan

At a glance

Requirements one by one

The board manages the ordinary corporation

Michigan's Business Corporation Act defines the board as the board of directors or other governing board and a director as one of its members (MCL §§ 450.1105- .1106). Under MCL 450.1501, the corporation's business and affairs are managed “by or under the direction” of the board unless the Act or articles provide otherwise. The board has one or more members, with its number fixed by the bylaws or the manner they provide unless the articles fix it.

The Act is not a universal Michigan entity code. Section 450.1123 excludes insurance, surety, savings-and-loan, fraternal-benefit, and banking corporations, and professional, nonprofit, public, foreign, and specially regulated entities can have different rules. This page addresses an ordinary domestic private business corporation.

Bylaws complete the call, notice, and adjournment procedure

Section 450.1521 permits regular and special board meetings inside or outside Michigan. It does not name a default caller, meeting schedule, special-meeting notice period, delivery method, or board-adjournment procedure. Those mechanics must therefore be taken from the current bylaws and any valid article or board provisions rather than borrowed from another state's model-act defaults.

The Act gives a corporation power to adopt “emergency bylaws” under §§ 450.1261(d), 450.1501, and 450.1505(1), but § 450.1261(d) does not define a triggering emergency or itself change notice, quorum, caller, or substitute-director rules. Any emergency procedure must be found in the corporation's valid emergency bylaws or another applicable law.

Notice and its attendance waiver are bylaw-driven

A regular meeting may be held with or without notice as the bylaws prescribe, while a special meeting must have the notice the bylaws prescribe. The statute does not supply a fallback number of days or a general board-notice delivery method. Neither the business nor purpose must appear in a notice or waiver unless the bylaws require it.

Attendance or participation waives required notice unless the director objects at the beginning of the meeting or on arrival to the meeting or transaction of business and does not later vote for or assent to action. Section 450.1521 does not separately prescribe a signed advance-waiver form, so the current bylaws and applicable law must be checked before relying on one.

Remote participation counts as presence

Unless the articles or bylaws restrict it, a board or board-committee member may participate by conference telephone or another remote method through which all participants can communicate with the others. Section 450.1521(3) treats that participation as presence in person.

The statute does not add a separate identity-verification, audiovisual, platform-access, or recording condition. A sequential email exchange is not a meeting merely because every director eventually responds; intended action outside a real-time meeting must satisfy § 450.1525's consent rule.

Quorum counts directors then in office

Section 450.1523 uses a majority of board members “then in office” as the default quorum, rather than a majority of the authorized or fixed board size. Vacancies therefore affect the ordinary denominator. Articles or bylaws may set a larger or smaller number, and the statute states no absolute one-third or two-director floor. For a committee, the board resolution establishing it may also change the quorum number.

The statute does not provide a different ordinary formula for a variable-range, classified, or class-elected board. It also does not expressly authorize continued voting after quorum is lost. A narrow vacancy exception appears in § 450.1515a(1): when the remaining directors are fewer than a quorum, a majority of all remaining directors may fill a board vacancy unless the articles limit that route.

A majority present ordinarily acts

With quorum present, the vote of a majority of members present is the act of the board or committee. The Act, articles, or bylaws may require a larger vote; a committee's establishing resolution may do so as well. Board amendment of the bylaws has its own floor: at least a majority of all board members then in office.

Michigan does not place a general presumed-assent or abstention rule in § 450.1523. Section 450.1553 instead creates a limited presumption only for the § 450.1551 liability matters: unlawful dividends or distributions, improper dissolution distributions, and prohibited insider loans. For those matters, a present director preserves dissent through the minutes or written dissent to the meeting secretary before or promptly after adjournment; an absent director must file after learning of the action. A director who voted in favor cannot use that dissent route. Other actions require careful minutes and the corporation's governing procedures rather than an assumed statutory abstention safe harbor.

No-meeting action requires every serving member's consent

Unless the articles or bylaws prohibit it, § 450.1525 permits board or committee action without a meeting when all board members then in office or all committee members consent in writing or by electronic transmission. Consent may occur before or after the action. The statute does not require a particular signature, description, counterpart, delivery address, collection period, or later notice to a nonconsenting director; unanimity means there is no nonconsenting member under the default route.

The consent must be filed with the board or committee minutes and has the same effect as a vote. An electronic transmission must create a retainable, retrievable record capable of automated paper reproduction.

A person may also direct a consent to take effect on a specified date or event within 60 days, including through an agent. The person need not be a director when executing or providing evidence of the direction but must be a director at the future effective time. Unless the direction says otherwise, it is revocable before the consent becomes effective.

Committees receive delegated power subject to listed limits

Under §§ 450.1527 and 450.1528, unless the articles or bylaws provide otherwise, the board may designate one or more committees of one or more directors and may name director alternates. If the bylaws allow it, nondisqualified members present may unanimously appoint another director to replace an absent or disqualified member for the meeting, even if those present are not a quorum.

Sections 450.1521, 450.1523, and 450.1525 expressly cover committees, so their remote-meeting, quorum, voting, and unanimous-consent rules apply. A committee may also create one-or-more-member subcommittees unless the board resolution, articles, or bylaws provide otherwise.

Delegation does not erase § 450.1528's limits. A committee cannot amend the articles except for the listed share-series authority, adopt a merger, conversion, or share-exchange agreement, recommend a substantially-all-assets sale or dissolution to shareholders, amend bylaws, or fill board vacancies. Distributions, dividends, and share issuances require express authority in the board resolution, articles, or bylaws.

Minutes and substantive-law boundaries remain separate

MCL §§ 450.1485 and 450.1541a(1)-(3) keep record duties and fiduciary duties separate. Section 450.1485 requires minutes of board and executive-committee proceedings and permits records in writing or another form convertible to writing within a reasonable time. Section 450.1525 separately requires every board or committee no-meeting consent to be filed with the minutes. Section 450.1485 does not state the same general meeting-minute duty for every nonexecutive committee, so the bylaws, delegation instrument, and sound record practice matter.

Procedural approval does not decide fiduciary or conflict questions. Under §§ 450.1545a(1)-(2), 450.1551(1), and 450.1553, conflict authorization and the limited liability presumption have their own rules. Section 450.1541a separately requires good faith, ordinary care, and a reasonable belief that conduct serves the corporation's best interests. Section 450.1545a has a transaction-specific interested-director authorization or ratification route, including a disinterested-director vote that may be less than quorum; it is not a general quorum exception for routine board business.

The current Act 284 compilation has no general statutory defective-corporate- action ratification procedure. Pending S.B. 789 would add one, but it remains in committee and is not current law. Public-company, securities, lender, regulatory, disputed-authority, and transaction-specific approval issues remain outside this procedural survey.

What trips people up

Michigan's quorum denominator is serving directors, not the fixed or authorized board size. That can make a vacancy affect quorum differently than in a state that freezes the denominator at the number prescribed in the bylaws.

There is no statutory two-day, five-day, mail, or email default for ordinary special-board-meeting notice. The current bylaws must supply the notice that § 450.1521 requires.

The broad presumed-assent language in § 450.1553 is easy to overread. It applies only when the board or committee takes one of the liability-producing actions listed in § 450.1551, not every routine board vote.

Common questions

Who may call a Michigan special board meeting?

The reviewed current Act 284 provisions do not name a default caller. Check the articles, bylaws, and valid board resolutions.

How much notice does a special board meeting require?

The bylaws prescribe it. Section 450.1521 supplies no fallback number of days or general delivery method.

Does a director joining remotely count toward quorum?

Yes, if the articles and bylaws do not restrict remote participation and the method lets every participant communicate with the others. The director then counts as present in person.

Can the board act by email without a meeting?

Potentially, but every director then in office must consent through an electronic transmission that creates a retainable, retrievable, paper- reproducible record, and the consent must be filed with the minutes. The articles or bylaws may prohibit this route.

Statutes and sources

• Michigan Business Corporation Act, MCL 450.1105-.1106 and 450.1121-.1123 — entity, board, director, electronic-transmission, and scope definitions. Official whole-Act 284 PDF, rendered August 7, 2026 and complete through PA 20 of 2026; accessed August 15, 2026: https://www.legislature.mi.gov/documents/mcl/pdf/mcl-act-284-of-1972.pdf
• MCL 450.1261, 450.1501, 450.1505, and 450.1515a — emergency-bylaw power, board authority and size, and the narrow below-quorum vacancy route. Same source and access date.
• MCL 450.1521, 450.1523, and 450.1525 — meeting place, bylaw notice, waiver, remote participation, quorum, voting, and action without a meeting. Same source and access date.
• MCL 450.1527-.1528 — committee composition, alternates, delegation, subcommittees, and nondelegable matters. Same source and access date.
• MCL 450.1485, 450.1541a, 450.1545a, 450.1551, and 450.1553 — minutes, director-duty and interested-transaction boundaries, and the limited concurrence presumption. Same source and access date.
• 2026 Michigan S.B. 789 — pending benefit-corporation and defective-action measure, introduced and referred to Senate Finance, Insurance, and Consumer Protection on February 18, 2026; checked August 15, 2026: https://legislature.mi.gov/Bills/Bill?ObjectName=2026-SB-0789