Yes. In most states a corporation has to have bylaws, and even in the few where the statute is softer, every corporation should adopt them. The Model Business Corporation Act, which forms the basis of corporate law in roughly 30 states, uses mandatory language: the incorporators or board of directors “shall adopt” initial bylaws. States that wrote their own statutes generally address who may adopt, amend, or repeal bylaws, which assumes the corporation will have them in the first place. Skipping this step invites disputes, closes doors at banks, and can cost you the personal liability protection that made incorporating worth doing.
What the Law Actually Requires
Bylaws are the corporation’s internal rulebook. Unlike the articles of incorporation, they aren’t filed with any state agency. They stay in the company’s own records. That internal status is what leads some founders to assume bylaws are optional, but the statutes say otherwise.
Under the Model Business Corporation Act, the incorporators or the initial board are directed to adopt bylaws for the new corporation. Non-MBCA states typically have parallel provisions. The statutes then set outer limits on what bylaws can say: they can’t be inconsistent with state corporation law or with the articles of incorporation.
The practical expectation runs even stronger than the legal one. Banks routinely ask for a copy of your bylaws before opening a corporate account or extending credit. Investors, accountants, and outside counsel read them to confirm who has authority to sign contracts, issue shares, or bind the corporation. A company that can’t produce bylaws looks like a corporation in name only.
What Happens if a Corporation Has No Bylaws
Default State Rules Take Over, Poorly
A corporation without bylaws doesn’t operate in a legal vacuum. State corporation statutes contain default provisions that fill in when bylaws are silent, covering the basics of who can call meetings, how much notice is required, and what counts as a quorum. Authority that bylaws would normally allocate tends to fall to the board of directors by default.
These defaults are one-size-fits-all, and they usually aren’t what the shareholders would have chosen. You lose the ability to set custom voting thresholds, define officer duties, restrict share transfers, or build in indemnification for directors and officers. In effect, you’re letting the state legislature make your governance choices.
Banks and Investors Balk
The first real friction shows up in ordinary business. Banks commonly require a copy of the bylaws, along with a board resolution, before opening an account or approving a loan. Without bylaws, you may not be able to show that the person signing has authority to sign. Investors run into the same wall: they need to see the governance structure before writing a check, and its absence is a red flag.
Personal Liability Through Veil Piercing
The most damaging consequence is the risk that a court will pierce the corporate veil. Under this doctrine, a court disregards the corporation’s separate legal identity and holds shareholders personally liable for company debts. Courts use the power cautiously and look at the totality of the circumstances, but one recognized factor is whether the corporation observed basic corporate formalities, including maintaining bylaws, holding regular board meetings, and keeping minutes. A corporation that never adopted bylaws hands a plaintiff’s attorney an easy argument that the business was never really a separate entity. Other factors matter too, but this one is the easiest to avoid.
What Bylaws Should Cover
Bylaws are tailored to each company, but they consistently address the same governance topics:
- The board of directors: the number of directors, how they’re elected, term lengths, how vacancies are filled, and how a director can be removed. Many bylaws also authorize board committees.
- Officers: the roles of the CEO, secretary, treasurer, and any others, including how they’re appointed, what authority each holds, and their terms.
- Meetings: notice requirements, quorum rules, whether proxy voting or electronic participation is allowed, and how often annual meetings occur, for both shareholders and the board.
- Stock: procedures for issuing shares, restrictions on transfers, and how stock certificates or electronic equivalents are handled.
- Indemnification: whether the corporation will cover legal costs for directors and officers sued over actions taken in their corporate roles. This one matters a great deal to anyone willing to serve on the board.
- Amendment procedures: how the bylaws themselves can be changed, including notice, voting thresholds, and who may propose amendments.
Some bylaws also address conflict-of-interest policies, dividend procedures, or the fiscal year. Depth depends on the company’s size, shareholder count, and complexity.
How Bylaws Fit With the Articles and Shareholder Agreements
A corporation runs under a stack of governing documents, and knowing which one wins a conflict matters.
State corporation law sits at the top. No internal document overrides it. Next come the articles of incorporation, sometimes called the certificate of incorporation or corporate charter, which are filed with the state. The articles beat the bylaws whenever the two disagree. Both the MBCA and individual state statutes say bylaws cannot be inconsistent with the law or the articles. If your articles set the board at seven directors and your bylaws say five, the articles control.
Shareholder agreements add another layer. These are private contracts among some or all shareholders, often addressing buy-sell rights, voting arrangements, or transfer restrictions. Where a shareholder agreement and the bylaws cover the same ground, the agreement generally controls for its signatories, because it operates under contract law. The cleanest approach is to write a priority clause into both documents and review them together whenever either changes.
Adopting and Amending the Bylaws
Initial bylaws are adopted very early, typically at the organizational meeting held shortly after the articles are filed. If the articles name the initial directors, those directors usually adopt the bylaws at their first meeting. If not, the incorporators meet to elect directors and, in some states, adopt the bylaws themselves before handing the corporation to the new board.
Bylaws are not permanent. Shareholders always keep the power to amend or repeal them. The articles of incorporation can also grant amendment authority to the board, but doing so doesn’t strip that power from shareholders. This is where the amendment procedures in the bylaws come into play, setting notice requirements, vote thresholds (simple majority, supermajority, or something else), and whether certain provisions require shareholder approval even when the board otherwise has amendment authority.
A common split gives the board authority over routine operational amendments, like meeting schedules or committee structures, while reserving fundamental changes, such as voting rights or indemnification, for a shareholder vote. Whatever process you use, document every amendment in the corporate minutes.
Bylaws and the S-Corp Election
If your corporation plans to elect S-corporation tax status by filing IRS Form 2553, the IRS itself doesn’t require bylaws. The eligibility rules focus on entity type, shareholder count (no more than 100), shareholder eligibility (individuals, certain trusts, and estates), having only one class of stock, and timely filing the election. Bylaws are not on that list.1Internal Revenue Service. Instructions for Form 2553
Even so, the election requires each shareholder to consent, and your bylaws or shareholder agreement may govern how major decisions like tax elections are handled. Clear governance documents head off disputes about whether the election was properly authorized. The IRS may not ask for your bylaws, but your co-shareholders might be glad you have them.