What is a deadlock provision and why is it important for a 50/50 company?

A 50/50 ownership structure — where two shareholders each hold half the company — creates an inherent risk of deadlock. If the two shareholders disagree on a fundamental issue and neither has a majority, the company can become paralyzed: no major decision can pass, and no resolution is in sight.

A deadlock provision in the shareholder agreement anticipates this scenario and provides a structured exit. The most common mechanism is a variation of the shotgun clause: either party can trigger it by naming a price per share and requiring the other to either buy at that price or sell at that price. Another approach involves mandatory mediation or arbitration if the parties cannot agree within a set time. Some agreements appoint a neutral third-party tiebreaker for specific types of decisions.

Without a deadlock provision, the only recourse for a truly deadlocked 50/50 company in Ontario is often a court application for a winding-up or oppression remedy — an expensive and business-disrupting outcome. If you own or are about to enter a 50/50 corporation, having a well-thought-out deadlock provision in your shareholder agreement is not optional; it is essential.