- Valuation disagreements usually aren't about dishonesty — they reflect genuinely different, defensible ways of looking at the same business.
- The first place to look isn't a negotiation tactic — it's whatever the partners already signed.
- Where partners have no binding valuation mechanism, the most common next step is retaining an independent business valuator — ideally one both partners agree to jointly, rather than each…
Two business partners can agree completely that a buyout should happen and still be far apart on what the business is actually worth. Valuation disagreements are one of the most common ways an otherwise straightforward partner buyout stalls — and how the disagreement gets resolved usually depends less on who's "right" and more on what the partners agreed to in advance, if anything.
This article looks at the main ways a partner buyout valuation dispute in Ontario typically gets resolved, from mechanisms built into a shareholder agreement to what happens when there's no agreement at all.
Why Partners Disagree on Value
Valuation disagreements usually aren't about dishonesty — they reflect genuinely different, defensible ways of looking at the same business. A departing partner focused on future growth may value the business higher than a remaining partner focused on the risk of running it without them. Different valuation methods (asset-based, earnings-based, comparable transactions) can produce meaningfully different numbers for the same company, and reasonable professionals can land in different places.
Start With the Shareholder or Partnership Agreement
The first place to look isn't a negotiation tactic — it's whatever the partners already signed. Many Ontario shareholder and partnership agreements include a valuation mechanism agreed to before any dispute existed, which removes much of the emotion from the process. Common mechanisms include:
- A pre-agreed valuation formula (based on a multiple of earnings, book value, or another defined metric)
- A requirement to obtain an independent valuation at the time of the buyout
- A "shotgun" or buy-sell provision, where one partner names a price and the other must either buy at that price or sell at it — a structure specifically designed to produce a fair number by making the person who sets the price also willing to be on either side of it
If your agreement already includes one of these, that mechanism generally governs — even if one side later dislikes the outcome.
No Agreement in Place? The Independent Valuator Route
Where partners have no binding valuation mechanism, the most common next step is retaining an independent business valuator — ideally one both partners agree to jointly, rather than each side hiring their own advocate. A jointly retained valuator's report doesn't automatically bind either partner unless they agree in advance that it will, so it's worth deciding upfront whether the valuation will be treated as final or simply as a starting point for further negotiation.
Mediation and Negotiated Settlement
Many valuation disputes settle through negotiation once both sides have a professional valuation in hand, particularly where the underlying relationship (and any ongoing family or business ties) makes an amicable resolution valuable in its own right. A mediator experienced in business or shareholder disputes can help bridge a gap between two valuation numbers without escalating to formal proceedings.
Arbitration or Litigation as a Last Resort
Where a shareholder or partnership agreement includes a binding arbitration clause for disputes, that process typically governs and produces a final, enforceable decision outside the courts. Absent an arbitration clause, an unresolved valuation dispute can end up in court, where a judge may ultimately have to determine value based on competing expert evidence — a slower, more expensive, and more public process than most partners want, which is part of why so many shareholder agreements build in a mechanism to avoid it.
A General Path Through a Valuation Dispute
- Check the shareholder or partnership agreement for a binding valuation mechanism.
- If one exists, follow it — including any shotgun or buy-sell process.
- If none exists, propose a jointly retained independent valuator before positions harden.
- Attempt mediation if the valuator's number doesn't resolve things on its own.
- Treat arbitration or litigation as the fallback, not the starting point.
Frequently asked questions
What is a "shotgun clause" and is it common in Ontario shareholder agreements?
A shotgun clause lets one partner offer a price at which they'll either buy the other out or sell their own stake, forcing the offering party to set a genuinely fair number since they could end up on either side of the deal. It's a well-established mechanism in Ontario shareholder agreements, though not every agreement includes one.
Can we just each get our own valuation and split the difference?
You can, and some partners do, but dueling valuations prepared by advocates for each side often produce numbers far apart, since each valuator is working from instructions favouring their own client. A jointly retained, independent valuator tends to produce a more defensible number for both sides.
Is a business valuator's report legally binding?
Only if the partners have agreed in advance that it will be — either in a shareholder agreement or in a separate agreement entered into for the buyout. Without that agreement, a valuation is generally just one input into further negotiation.
What happens if we truly can't agree and there's no shareholder agreement at all?
This is the hardest scenario, and it can end up in litigation, where a court considers competing valuation evidence. It's a strong argument for putting a valuation mechanism into a shareholder or partnership agreement before any dispute arises, not after.
This is a business purchase or sale question
Start a file online — flat, published fees, reviewed by a licensed Ontario lawyer before a dollar is owed.