- Imagine a seller has agreed to a vendor take-back note, to be paid off by the buyer in instalments after closing.
- From a buyer's perspective, a set-off right converts an indemnity promise from a claim you have to go collect into money you already control.
- Sellers generally push back on broad set-off rights for the mirror-image reason: an unrestricted right lets a buyer unilaterally decide a claim is valid and simply stop paying, without…
Not every dollar of a business's purchase price changes hands at closing. Vendor take-back financing, earn-outs, and deferred payments are common ways to structure an Ontario business sale, which means the seller often still has money coming after the deal closes. A set-off right in the indemnity clause answers a practical question: if the buyer later discovers a loss covered by the seller's indemnity, can the buyer simply deduct it from what's still owed, instead of chasing the seller separately for a cheque?
This article explains how set-off rights work, why buyers negotiate hard for them, and how they interact with other post-closing protections like holdbacks and escrows.
How a Set-Off Right Works
Imagine a seller has agreed to a vendor take-back note, to be paid off by the buyer in instalments after closing. Sometime after closing, the buyer discovers that a representation in the purchase agreement was false — say, a supplier contract described as fully assignable turns out to have a consent requirement no one disclosed, and the buyer suffers a loss as a result. Without a set-off right, the buyer would generally have to pay the seller under the note in full, then separately pursue an indemnity claim to recover the loss. With a set-off right, the buyer can instead reduce, or "set off," what's owed under the note by the amount of a properly established indemnity claim.
The mechanism generally involves a few steps:
- The buyer identifies a loss that it believes is covered by the seller's representations, warranties, or indemnity obligations.
- The buyer gives notice to the seller of the claim, typically as required under the indemnity provisions of the purchase agreement.
- The claim is established — either because the seller agrees, or through whatever dispute mechanism the agreement provides.
- The buyer deducts the established amount from the next payment or payments owed under the note, earn-out, or other deferred consideration.
Why Buyers Push Hard for Set-Off Rights
From a buyer's perspective, a set-off right converts an indemnity promise from a claim you have to go collect into money you already control. If the seller becomes uncooperative, financially unable to pay, or simply disappears after closing, a set-off right lets the buyer protect itself using money that hasn't left its hands yet, rather than being forced into a separate collection process against a seller who may no longer have the means or motivation to pay.
Why Sellers Resist Them
Sellers generally push back on broad set-off rights for the mirror-image reason: an unrestricted right lets a buyer unilaterally decide a claim is valid and simply stop paying, without the seller having had a real chance to dispute it first. Sellers typically negotiate for guardrails, such as:
- Requiring the claim to be undisputed, agreed, or finally determined before any set-off can occur
- Capping how much can be set off at any one time
- Limiting set-off to specific types of claims, rather than any indemnity claim generally
- Requiring notice and a response period before any deduction is made
Set-Off Compared to Other Post-Closing Protections
| Protection | How it works | Timing |
|---|---|---|
| Holdback / escrow | A portion of the purchase price is withheld or held by a third party at closing, available to satisfy later indemnity claims | Funds are set aside at closing |
| Set-off right | Amounts otherwise owed to the seller later, under a note or earn-out, are reduced by an established claim | Applied when a future payment comes due |
| Direct indemnity claim | The buyer pursues the seller directly for payment, without a built-in source of funds to draw from | After the claim is established, with no guaranteed source of recovery |
Many purchase agreements use more than one of these together — for example, a holdback for the first period after closing, combined with a set-off right against a longer-term vendor take-back note, so the buyer has protection across the full life of its indemnity rights.
Frequently asked questions
Does a set-off right mean the buyer can just stop paying whenever it wants?
No. Well-drafted set-off provisions require the underlying claim to be properly established first, whether by agreement, a specified dispute process, or a final determination, rather than leaving it to the buyer's unilateral judgment.
Is a set-off right the same as a holdback?
No. A holdback sets money aside at closing specifically to cover future claims, while a set-off right applies to money that was always going to be paid later anyway, such as an earn-out or vendor take-back note, by allowing an established claim to reduce that future payment.
Can a seller negotiate the set-off right away entirely?
Sometimes, particularly where the seller has significant negotiating leverage or where deferred payments are a small part of the overall price. More often, sellers negotiate limits on the right — caps, notice requirements, or a dispute mechanism — rather than eliminating it outright.
What happens if there's no deferred payment left to set off against?
If the note or earn-out has already been fully paid, or the claim exceeds what's still owed, the buyer's set-off right doesn't help beyond that amount, and the buyer would need to pursue the seller directly for the balance, which is one reason buyers often pair a set-off right with a holdback or escrow as well.
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