A sale that every party genuinely believes is arm's length can still be deemed otherwise by a rule that does not ask what anyone believed.
Short answer
Because section 84.1 does not test intent. Where a taxpayer “was, immediately before the disposition, one of a group of fewer than 6 persons that controlled the subject corporation”, and remains one of a group of fewer than six controlling the purchaser corporation afterward, the two are deemed not to deal at arm’s length — which turns a share sale into a non-arm’s-length one and can recharacterize part of the proceeds as a taxable dividend instead of a capital gain.
Paragraph 84.1(2)(b) is a bright-line deeming rule, not a factual inquiry into whether the parties actually acted independently. A management buyout structured through a newly formed acquisition company, where the same small group of individuals controls both the target and the purchaser before and after closing, falls inside the deeming rule automatically — there is no argument that the deal was negotiated at genuine arm’s length that gets around it.
The non-resident counterpart to section 84.1 is section 212.1, which reaches the same economic structure — a non-arm’s-length sale of shares to a connected Canadian-resident purchaser corporation — where the seller is not a Canadian resident. The two sections are not interchangeable: which one applies turns on the seller’s residency, and getting that wrong means modelling the wrong deemed dividend rule entirely.
One file shows a transaction every party genuinely believed was arm’s length, decided instead by a rule that does not ask what anyone believed. A companion file shows the advisors modelling section 84.1 when the vendor’s own non-resident status put the transaction under section 212.1 instead.
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