What it means
The defining feature is that the choice belongs to one party only. The wronged party can either rescind the contract, unwinding it and returning both sides to their previous positions, or affirm it and carry on, and once they affirm with full knowledge of the problem the right to rescind is generally lost.
The usual grounds are misrepresentation, where a false statement of fact induced the agreement, duress or undue influence, where consent was pressured rather than freely given, and incapacity, such as a contract signed by a minor. Some jurisdictions also treat certain unfair consumer terms as giving a right to cancel.
Timing is unforgiving. Delay after discovering the problem, continuing to take the benefits of the deal, or a situation where the goods can no longer be returned in substantially their original state can all bar rescission and leave the wronged party with a damages claim instead.
For finance and commercial teams, the practical question is rarely legal purity, it is whether cancelling is worth it. Rescission means giving back what you received, finding a replacement supplier or buyer at short notice and paying legal fees, and sometimes affirming the contract while claiming damages is the cheaper route.
The accounting response is to treat a live rescission right as a contingency. Once rescission becomes probable, revenue recognised on the contract needs revisiting, and any asset acquired under it should be tested for impairment because its carrying value may no longer be supportable.
In practice
Real-world examples.
Example
A company buys a small competitor after being shown customer numbers that turn out to include 200 accounts that had already cancelled. The misrepresentation makes the share purchase agreement voidable, and the buyer must decide quickly whether to rescind or renegotiate the price.
Example
An elderly business owner signs a personal guarantee for a family member's loan after sustained pressure from relatives. A court finds undue influence, and the guarantee is voidable at the owner's option rather than automatically void.
Example
A software firm signs a three-year licence after the vendor claims an integration exists that has not yet been built. On discovering this in month two, the firm rescinds, returns the licence keys and recovers the fees it had already paid.
Formula
Calculation
Net benefit of rescission = Loss avoided by cancelling - Costs of rescission (legal fees, replacement costs, disruption).
A distributor buys a specialist machine for $250,000 after the seller states it can process 900 units an hour. The machine in fact manages 600 units an hour, and equipment with that true capacity is worth about $180,000, so the loss from keeping it is $250,000 - $180,000 = $70,000. Rescinding would cost $25,000 in legal fees and a further $15,000 premium to source an equivalent machine quickly, a total of $25,000 + $15,000 = $40,000. The net benefit of rescission is $70,000 - $40,000 = $30,000, so cancelling is the better commercial choice, provided the machine can still be returned in its original condition.Case study
Seen in the real world.
Ashgrove Packaging is an illustrative, fictional manufacturer that bought a used printing line for $250,000 on the strength of the seller's written statement that it ran at 900 impressions an hour. In production it managed 600, and an independent valuer put the fair value of a machine at that speed at $180,000.
Ashgrove's finance director modelled both routes. Keeping the line meant absorbing a $70,000 overpayment, while rescinding meant $25,000 of legal costs and roughly $15,000 extra to secure a replacement at short notice, so rescission was worth about $30,000 more.
In this fictional scenario the decision turned on one detail: Ashgrove had run the line for only nine days and could return it substantially as delivered. Had it operated for six months and modified the feeder, the right to rescind would probably have been lost and the only remaining route would have been a damages claim.
Watch out
Common mistakes.
- Assuming a voidable contract is automatically unenforceable, when it binds both parties completely until the wronged party actually rescinds.
- Keeping the benefits of a contract while complaining about it, which is often treated as affirming the agreement and gives away the right to cancel.
- Waiting months to take advice after discovering a misrepresentation, by which time delay alone can defeat the remedy.
Questions
People also ask.
Who decides whether a voidable contract is cancelled?
Only the party who was misled, pressured or lacked capacity, and the other side has no equivalent right to walk away.
What is the difference between rescission and termination?
Rescission unwinds the contract as if it never happened and both sides return what they received, while termination ends future obligations but leaves past performance in place.
Can damages be claimed instead of rescinding?
Yes, and where returning the goods is impractical or commercially damaging, a damages claim for the difference in value is often the more sensible route.
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