What Is the Model Business Corporation Act?

The Model Business Corporation Act is a template corporate code drafted and maintained by the American Bar Association, currently adopted in whole or in part by thirty-six U.S. jurisdictions. It sets the default rules those states use to govern how corporations are formed, how directors and officers must act, what rights shareholders hold, and how a corporation can be merged, sold, or shut down. If your corporation is chartered in one of those jurisdictions, the act’s provisions, as adopted locally, are the law that controls it.

The act is not federal law and has no force on its own. It becomes binding only when a state legislature enacts it, which is why its influence is wide but uneven: some states follow the text closely, others pick and choose, departing on issues like director liability or appraisal rights.¹ The ABA’s Corporate Laws Committee maintains the text and issues periodic amendments that respond to changes in business practice, technology, and case law.² The most recent comprehensive overhaul came in 2016.³ Delaware, worth noting, uses its own corporate code rather than the MBCA, so the two bodies of law diverge on several points covered below.

Does the Act Apply to Your Corporation

Whether the MBCA governs your business depends on where you incorporated. The act applies in states that have enacted it, which covers thirty-six jurisdictions. In adopting states, local statutes track the model text to varying degrees, so the authoritative source is always your state’s corporate code, with the model as the common backbone. In non-adopting states, including Delaware, the act has no direct effect, though lawyers and courts in those states sometimes look to it as persuasive authority.

Foreign corporations are a separate matter. A corporation formed in one state that wants to do business in another must register with the second state’s Secretary of State. Under the MBCA, a foreign corporation cannot transact business until it obtains a certificate of authority, or, in the 2016 revision’s terminology, registers as a foreign corporation. Skipping registration carries real consequences. An unregistered foreign corporation cannot bring a lawsuit in that state’s courts and may face daily civil penalties that accumulate until it registers. Failing to register does not void its contracts or stop it from defending itself in court.⁴ Foreign corporations must also file annual reports in each state where they are registered.

Forming a Corporation Under the Act

Formation begins with delivering articles of incorporation to the Secretary of State. The articles must include the corporation’s name, the classes and number of shares it is authorized to issue, and the name of a registered agent who can accept legal documents on the corporation’s behalf. The articles may also list initial directors, state the corporation’s purpose, and include provisions limiting director liability or setting governance rules that go beyond the act’s defaults.

Filing fees vary by state, from under $50 in some jurisdictions to over $300 in others. Most Secretary of State offices now accept electronic filings. The corporation’s existence begins the moment the Secretary of State files the articles. That timing matters, because any business conducted before that moment can expose the people involved to personal liability.

Bylaws and Share Structure

After incorporation, the incorporators or the initial board adopt bylaws to govern the corporation’s internal operations. Bylaws can address almost anything related to running the business, as long as they do not conflict with the articles or the law.⁵ Common provisions cover meeting procedures, officer roles, committee structures, and quorum requirements. The 2016 revision expressly allows bylaws requiring proxy access for shareholder-nominated director candidates and reimbursement of shareholder proxy solicitation expenses.

The articles must authorize at least one class of shares with unlimited voting rights and at least one class entitled to receive the corporation’s net assets upon dissolution. These can be the same class. Beyond that minimum, a corporation can create multiple classes and series with tailored rights: preferred dividends, conversion rights, redemption features, or limited voting power. If the articles authorize it, the board can classify unissued shares into new classes or series without a shareholder vote, though it must file an amendment with the Secretary of State before issuing shares of any new class or series.⁴

Keeping the Corporation in Good Standing

Incorporation is not a one-time event. Every domestic corporation, and every foreign corporation authorized to do business in the state, must file an annual report with the Secretary of State. The report must include the corporation’s name, registered agent and office, principal office address, names and addresses of directors and principal officers, a brief description of the business, and the number of authorized and outstanding shares broken down by class.⁴ The first report is due between January 1 and April 1 of the year following incorporation, with later reports due in the same window each year.

Missing the report or failing to maintain a registered agent are the most common triggers for administrative dissolution. Annual report fees typically run from around $10 to $150 depending on the state. The obligation is easy to forget, especially for small or dormant corporations, and the consequences are serious. The Secretary of State can administratively dissolve a corporation that fails to file, fails to maintain a registered agent, or fails to pay required fees and taxes. Reinstatement is usually possible within two to five years, but it requires curing the original problem and paying all overdue taxes, interest, and penalties. Waiting too long can permanently end the corporation’s existence.

Director and Officer Duties

The act separates two ideas that older corporate codes tended to blur: how directors should behave, and when directors actually face liability.

Section 8.30 sets the standards of conduct. A director must act in good faith and in a manner the director reasonably believes to be in the corporation’s best interests. When gathering information for decisions or monitoring the company’s affairs, the director must exercise the care a reasonable person in a similar position would find appropriate under the circumstances.⁴ These are the aspirational guideposts.

Section 8.31 defines when a director is actually liable. A plaintiff must prove that the director acted without good faith, made a decision the director did not reasonably believe served the corporation, lacked objectivity due to a personal relationship or financial interest, persistently failed to pay attention to the business, or received a financial benefit they were not entitled to.⁴ Falling short of ideal conduct does not automatically mean writing a check. A plaintiff has to prove specific, concrete failures before liability attaches.

When shareholders challenge a board’s business decisions, courts apply the business judgment rule: a presumption that directors acted in good faith, on an informed basis, and in the corporation’s best interests. Unless the challenger can overcome that presumption with evidence of bad faith, self-dealing, or uninformed decision-making, the court will not second-guess the board’s commercial judgment.

Conflict of Interest Transactions

Transactions where a director has a personal financial interest are not automatically void. The act provides two safe harbors that, if followed, insulate the deal from challenge: approval by a vote of “qualified directors” who have no stake in it, or approval by a vote of the shareholders.⁶ A qualified director is one with no personal interest in the transaction and no family, financial, or professional relationship with the interested director that would impair objectivity. If neither safe harbor is used, the interested director bears the burden of proving the transaction was fair to the corporation.

Indemnification and Insurance

The act draws a line between situations where the corporation must indemnify a director and situations where it may choose to. Mandatory indemnification is straightforward: if a director is sued because of their role and wins the case entirely, the corporation must reimburse their reasonable expenses, including attorney fees.⁴ “Wholly successful” means the director prevailed on every claim, whether through a verdict, dismissal, or settlement that resolved the matter.

Permissive indemnification covers messier outcomes. The corporation may reimburse a director who did not win outright, but only if the director acted in good faith and reasonably believed their conduct was in the corporation’s best interests. For criminal proceedings, the director must also have had no reasonable cause to believe their conduct was unlawful. The 2016 revision simplified advancement of expenses by eliminating the requirement that directors provide a written affirmation that they met the indemnification standards.³ The act also expressly permits corporations to purchase D&O liability insurance.

Shareholder Rights

Shareholders have several tools to participate in corporate governance, starting with the right to vote. The act requires corporations to hold an annual meeting at which directors are elected. Special meetings can be called by the board or by shareholders holding at least 10 percent of the votes entitled to be cast on the proposed issue. The articles can lower that threshold or raise it to as high as 25 percent.⁷

Shareholders can also act without a meeting, but only by unanimous written consent. Every shareholder entitled to vote must sign a written consent within 60 days of the first signature, and the corporation must notify nonvoting shareholders at least 10 days before the action takes effect.⁴ Unanimity makes written consent impractical for public companies, but it works well for closely held corporations.

The board can authorize a shareholders’ meeting held entirely by remote communication, unless the bylaws require a physical location. For remote or hybrid meetings, the corporation must take reasonable steps to verify that each remote participant is actually a shareholder and must give shareholders the opportunity to vote and follow the proceedings in real time. The meeting notice must describe the specific technology being used, and the shareholder list must be accessible electronically during the meeting.⁷

Shareholders also have a statutory right to inspect the corporation’s books and records. The shareholder must submit a written demand describing a proper purpose connected to their interest as an owner, such as investigating potential mismanagement, assessing the value of shares, or communicating with other shareholders about governance. The corporation can refuse a request that lacks a proper purpose or that appears designed to harm the business.

Appraisal Rights for Dissenters

When a corporation undergoes a fundamental change like a merger, shareholders who oppose the transaction can demand that the corporation buy back their shares at fair value. Recent amendments narrowed the trigger: a transaction must change the legal terms of the shareholder’s investment, not merely the underlying business.⁸

Appraisal is available in two main situations. The first is any “interested transaction,” which includes mergers or asset sales where insiders hold more than 5 percent of the acquiring company’s voting power, where insiders receive a financial benefit not available to other shareholders, or where a majority of the board has a material connection to the acquirer. For interested transactions, there is no market-out exception. The second is when corporate shares are exchanged for equity in an unincorporated entity like a limited partnership or LLC.⁸

Derivative Suits

When the corporation itself has been harmed by its own directors or officers, individual shareholders can sue on the corporation’s behalf through a derivative action. The act takes a different approach than Delaware law on a threshold procedural issue: it requires a written demand on the corporation in every case, with no exception for situations where demand would be futile. The shareholder must wait 90 days after making the demand before filing suit, unless the corporation formally rejects the demand or waiting would cause irreparable harm. This universal demand requirement forces the shareholder to ask the board first, giving it a chance to form a special litigation committee to evaluate the claim.

Mergers and Fundamental Changes

Significant structural changes, including mergers, share exchanges, and the sale of substantially all corporate assets, follow a two-step approval process. The board must first recommend the action, and then the shareholders entitled to vote must approve it. A majority of outstanding shares entitled to vote is the typical approval threshold, though the articles can require a supermajority.

Once both approvals are in place, the corporation files articles of merger or articles of amendment with the Secretary of State. The 2016 revision added a streamlined path for mergers that follow a tender offer: if the acquiring company obtains enough shares through the tender offer, the merger can proceed without a separate shareholder vote, provided certain conditions are met.³ The revision also standardized procedural language across all types of fundamental changes, so the same approval steps apply whether the transaction is a merger, conversion, or domestication.

How a Corporation Ends

Voluntary dissolution follows the same board-then-shareholder approval path as other fundamental changes. After shareholders confirm the decision, the corporation files articles of dissolution with the Secretary of State and begins winding up: liquidating assets, paying creditors in their order of legal priority, and distributing any remaining funds to shareholders according to their share classes and ownership interests.

Courts can force a dissolution under several circumstances. A shareholder can petition for judicial dissolution when directors are deadlocked and the stalemate threatens irreparable harm, when those in control have acted illegally or oppressively, when shareholders have failed to elect directors for at least two consecutive annual meeting cycles, or when corporate assets are being wasted.⁹ Creditors can petition when the corporation is insolvent and their judgment has gone unsatisfied. The state attorney general can seek dissolution if the corporation obtained its charter through fraud or has persistently exceeded its authority.

Shareholder-initiated judicial dissolution is unavailable for larger public companies: corporations whose shares are listed on a major stock exchange, or held by at least 300 shareholders with a market value of at least $20 million (excluding shares owned by insiders holding more than 10 percent).⁹ The logic is that shareholders in publicly traded companies can sell their shares on the open market rather than ask a court to unwind the entire entity.

A Warning About Pre-Incorporation Activity

People sometimes start doing business before the corporation technically exists, signing leases, ordering inventory, or hiring employees in the corporation’s name. The act makes the risk explicit: anyone who acts on behalf of a corporation knowing it has not yet been incorporated is jointly and severally liable for all obligations created during that period. A vendor, landlord, or injured party can pursue the individual personally for the full amount owed.

This personal liability does not automatically disappear once the corporation is formed. The original contract must be formally replaced through a novation, or the parties must have agreed upfront that the promoter would not be personally liable. Promoters also owe fiduciary duties of full disclosure and good faith to the future corporation, so they cannot take secret profits from pre-incorporation transactions. Once the corporation exists, it can ratify the promoter’s actions and accept the benefits of pre-incorporation contracts, but the promoter’s personal exposure remains unless the other party agrees to release it.

1
Business Law Today. The Model Business Corporation Act at 75
2
American Bar Association. Corporate Laws Committee
3
American Bar Association. Model Business Corporation Act (2016 Revision) Launches
4
LexisNexis. Model Business Corporation Act 3rd Edition Official Text
5
American Bar Association. Changes in the Model Business Corporation Act – Proposed Amendments to Chapter 2
6
American Bar Association. Changes in the Model Business Corporation Act – Proposed Amendments to Sections 2.02 and 8.70
7
American Bar Association. Report of the Committee on Corporate Laws – Changes in the Model Business Corporation Act
8
American Bar Association. Understanding Appraisal – The Model Business Corporation Act Amends Its Provisions
9
American Bar Association. Changes in the Model Business Corporation Act