When Your Shareholders' Agreement and Your Will Disagree in Ontario

You draft a will that leaves your company shares to your spouse. Years earlier, you signed a shareholders' agreement with your business partners that says, on your death, your shares must be sold to the surviving shareholders at a set price. Which document wins?

This is a more common problem than most Ontario business owners realize, because wills and shareholders' agreements are often drafted years apart, by different advisors, without either document referencing the other. Understanding how they actually interact — instead of assuming your will has the final word — is essential if you own shares in a company with other owners.

Two Different Documents, Two Different Jobs

A will directs what happens to everything you own after you die, including your shares in a company — but only to the extent you're free to direct it. A shareholders' agreement is a contract you signed with your co-owners while you were alive, and it can bind what happens to those specific shares regardless of what your will later says.

The core principle: your will can only give away what you're legally free to give. If a valid shareholders' agreement already obligates you (and your estate) to sell your shares on death — often through a mandatory buy-sell provision — your will cannot override that pre-existing contractual obligation just by saying something different.

Why This Catches People Off Guard

The shareholders' agreement usually predates the will's specific bequest

Business partners often sign a shareholders' agreement early, focused on day-to-day governance, and address death and disability provisions almost as an afterthought — a standard buy-sell clause included because a lawyer recommended it, not because anyone thought carefully about how it should interact with each shareholder's personal estate plan.

The will is often drafted without reviewing the shareholders' agreement

If the lawyer or notary drafting your personal will has never seen your shareholders' agreement, they can't draft around a conflict they don't know exists. A will that says "I leave my shares in [Company] to my spouse" can be perfectly valid as a will provision while still being unenforceable against a binding prior contractual obligation to sell.

Beneficiaries may be entitled to value, not the shares themselves

Even where a shareholders' agreement requires a sale on death, that doesn't necessarily mean your family gets nothing — a buy-sell provision paired with funding (commonly life insurance held for that purpose) is designed to convert the shares into a cash payment to your estate, which then flows to your beneficiaries under your will as intended. The shares go one way; the value can still go where your will directs.

How the Two Documents Should Work Together

A properly coordinated estate plan treats the shareholders' agreement as a fact your will has to work around, not a document your will can simply ignore. That generally means:

1. Review the shareholders' agreement before finalizing the will — specifically its death, disability, and buy-sell provisions, and any restriction on who can hold shares.
2. Confirm what funding mechanism (if any) exists to pay the estate for the shares, such as corporate-owned or personally owned life insurance tied to the buy-sell provision.
3. Draft the will's language about the shares to reflect the underlying reality — for example, directing that the proceeds of a mandatory share sale go to a named beneficiary, rather than purporting to leave the shares themselves to someone the agreement doesn't permit to hold them.
4. Revisit both documents together whenever either one changes — a new shareholders' agreement, a new business partner, or a new will should each trigger a check against the other document.
5. Make sure your executor knows the shareholders' agreement exists and where to find it, since they will need to comply with its terms when administering your estate.

What Happens If the Conflict Is Never Resolved Before Death

If a shareholders' agreement and a will genuinely conflict and no one caught it in time, the estate trustee is generally left navigating both documents after the fact — often with legal advice, and sometimes with disagreement among beneficiaries or surviving shareholders about how to interpret the two together. This can mean:

• Delay while the executor and surviving shareholders work out how the buy-sell mechanism applies
• Disappointment for a beneficiary who expected to receive shares directly but instead receives (or is owed) a cash payment instead
• In more serious cases, a dispute that requires court involvement to resolve which document's terms actually control the outcome

None of this is inevitable — it's specifically what coordinating the two documents in advance is meant to prevent.

Frequently asked questions