As long as five years, if the buyer was not a stranger to the seller. At arm’s length the window is short and the seller’s state of mind is the hard part; off that arm’s-length line, both get easier for the trustee.
Short answer
Up to one year after closing if the buyer was dealing at arm’s length with the seller, and up to five years if not. Under s.96 of the Bankruptcy and Insolvency Act, a trustee can ask a court to void “a transfer at undervalue” or order the difference paid to the estate — and which window applies, and what else the trustee must prove, depends entirely on whether the buyer was at arm’s length.
The bargain price that became a transfer at undervalue is this exact fact pattern: an arm’s-length purchase that survived a s.96(1)(a) attack because the trustee could not prove the seller’s intent, next to a $150,000 side payment to a non-arm’s-length recipient that s.96(3) reached without any intent element at all. For the different, no-intent-required attack on a payment routed to an existing creditor rather than a purchase price, see A British Columbia creditor sued inside sixty days, and the preference attack needed no proof of intent at all — and for how the two remedies differ, see the next question.
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