Do You Need a Shareholders’ Agreement in Ontario?
- Sep 19, 2025
- 3 min read
When starting a business with one or more partners, many founders focus on incorporation and getting operations up and running.
In many cases, the relationship between shareholders is based on trust and informal understandings.
A shareholders’ agreement is often seen as something that can be addressed later.
In practice, most issues between business partners arise when expectations are not clearly defined at the outset.
A shareholders’ agreement is designed to address this.
What Is a Shareholders’ Agreement
A shareholders’ agreement is a contract between the owners of a corporation.
It governs:
• how the business is managed
• how decisions are made
• how ownership is structured
• what happens if circumstances change
It works alongside the corporation’s articles and applicable laws.
Why Incorporation Alone Is Not Enough
Incorporation sets up the legal structure of the company.
However, it does not address:
• how shareholders make decisions together
• what happens if a shareholder wants to leave
• how disputes are resolved• how ownership changes over time
Without a shareholders’ agreement, these issues may be left unresolved.
When You Should Have a Shareholders’ Agreement
A shareholders’ agreement is particularly important where:
• there is more than one owner
• ownership is split between individuals or entities
• roles and responsibilities differ
• the business is expected to grow
It is most effective when put in place at the beginning of the relationship.
Common Situations Where Issues Arise
Without a shareholders’ agreement, businesses may face:
• disagreements over decision-making
• disputes over roles and responsibilities
• uncertainty around ownership transfers
• challenges when a shareholder exits
These situations can disrupt operations and affect the business.
Key Areas a Shareholders’ Agreement Addresses
1. Decision-Making and Control
The agreement can define:
• how decisions are made
• what requires unanimous approval
• what can be decided by majority
This helps prevent deadlock.
2. Ownership and Share Transfers
The agreement can address:
• restrictions on selling shares
• rights of existing shareholders
• how new shareholders are introduced
This helps maintain control over ownership.
3. Exit and Buyout Provisions
Shareholders’ agreements typically include:
• mechanisms for buying out a shareholder
• valuation methods
• timing and payment terms
This provides a clear path if someone leaves.
4. Dispute Resolution
The agreement may set out:
• how disputes are handled
• steps to resolve issues before escalation
This can help avoid disruption.
5. Roles and Responsibilities
Where shareholders are involved in the business, the agreement can clarify:
• roles within the company
• expectations around involvement
• decision-making authority
What Happens If You Do Not Have One
Without a shareholders’ agreement:
• disputes may be harder to resolve
• there may be no clear exit mechanism
• decision-making may become difficult
• relationships between shareholders may deteriorate
In some cases, this can affect the viability of the business.
Is a Shareholders’ Agreement Always Necessary
Not every corporation requires a shareholders’ agreement.
For example:
• a sole shareholder may not need one
• very simple structures may operate without one
However, once multiple owners are involved, the benefits increase significantly.
Why This Matters for Business Owners
A shareholders’ agreement helps:
• set clear expectations
• reduce the risk of disputes
• provide structure for decision-making
• support long-term growth
It is often easier to address these issues at the beginning than after problems arise.
Speak With a Lawyer About Your Business Structure
If you are starting a business with partners or already operating without a shareholders’ agreement, it may be worth reviewing your structure.
If you want to put a shareholders’ agreement in place or update your existing one, you can Book a Consultation to discuss your situation and next steps.
