A shareholder agreement is for the day you disagree

Current to September 11, 2026.

Nobody wants one while everyone still gets along. That is exactly when it can be written cheaply and fairly.

Articles of incorporation and by-laws govern how the corporation operates. They say very little about the relationship between the people who own it. A shareholder agreement is the document that does, and its whole value lies in having been agreed before anyone had a reason to argue about the terms.

What happens without one

• Two equal shareholders who disagree have no way to break a deadlock, and the corporation stops making decisions
• A departing owner has no obligation to sell and no right to be bought out, so they stay a shareholder indefinitely
• Shares can pass on death or through a marriage breakdown to someone the others never chose to be in business with
• There is no agreed way to value the shares, so valuation itself becomes the dispute

What it usually contains

• Restrictions on transferring shares, and a right of first refusal
• A buy-sell mechanism, sometimes a shotgun clause, so a stalemate has an exit
• Drag-along and tag-along rights, so a majority sale cannot strand a minority and a minority cannot block one
• A valuation method agreed in advance
• Terms for owner loans into the company, which otherwise get made on a handshake and documented, if at all, by a note nobody reviewed
• Provisions for death, disability and departure, often backed by insurance
• Decisions that require unanimity rather than a simple majority
• A dispute resolution route that is not litigation

When to do it

At incorporation, or as soon after as possible. The terms are far easier to negotiate when no one yet knows which side of them they will be standing on.

See when incorporating is worth it, selling your business, and business.