A crystallisation years earlier had already used up the cost base a later transfer relied on

The situation

Eight years before the transaction under review, a founder had crystallised a portion of his lifetime capital gains exemption through a related-party sale of shares to a newly formed holding company, using $625,000 of exemption room to step up the shares’ adjusted cost base on the ordinary crystallisation logic. The transaction was unremarkable at the time and nobody involved in the current deal — a new advisor, a new corporate structure, a new purpose — had reason to pull the file.

The current transaction moved those same shares again, this time from the founder to a second, newer family holding company as part of a broader restructuring ahead of bringing in a minority investor. The advisors on the current deal priced the internal transfer on the shares’ adjusted cost base as it appeared on the corporation’s books — the stepped-up figure from the crystallisation — without re-deriving it from the Act’s own rule for non-arm’s-length transfers.

The problem

s.84.1(2)(a.1) applies where a share disposed of by a taxpayer “was acquired by the taxpayer after 1971 from a person with whom the taxpayer was not dealing at arm’s length” — exactly the founder’s position, since he had acquired the current shares from himself, in substance, through the earlier crystallisation. Where it applies, “the adjusted cost base to the taxpayer of the share at any time shall be deemed to be the amount, if any, by which its adjusted cost base to the taxpayer, otherwise determined, exceeds the total of” several items, including, under subparagraph (ii), “the total of all amounts each of which is an amount determined after 1984 under subparagraph 40(1)(a)(i) in respect of a previous disposition of the share or a share for which the share was substituted” — “or such lesser amount as is established by the taxpayer to be the amount in respect of which a deduction under section 110.6 was claimed”.

In plain terms: the $625,000 of exemption claimed at the crystallisation does not just disappear into history once used. It comes back out of the cost base the next time the share moves between non-arm’s-length parties — a “hard” reduction that the books, showing only the stepped-up figure, do not reveal on their face.

The numbers

Books-recorded adjusted cost base: $625,000. Actual cost base for s.84.1 purposes, after the hard-ACB reduction: effectively nil on the exempted portion. The internal transfer was structured with new shares issued as consideration equal to the $625,000 book figure — which, once the reduced cost base is applied, produced a deemed dividend under s.84.1(1)(b) of $625,000 rather than a tax-free rollover, because the paid-up-capital and deemed-dividend formulas in s.84.1(1) both key off the reduced adjusted cost base, not the books figure.

The rule that decided it

Read the unit: s.84.1(2)(a.1)(ii) does not look at whether this transfer used the exemption. It looks at whether the exemption was ever used on this share, or a share it was substituted for, by the taxpayer or anyone the taxpayer did not deal with at arm’s length — and reduces the cost base for every non-arm’s-length disposition afterward, not just the first one. A crystallisation eight years earlier is squarely inside that reach; nothing in the provision limits it to the transaction immediately following the crystallisation.

The fork that matters for shares this old: where a share was held since before 1972, s.84.1(2)(a) substitutes a valuation-day computation instead of the (a.1) hard-ACB rule, with its own additions for capital dividends elected under s.83(1). That did not apply here — the founder’s shares were all post-1971 — but it is the reason a share’s full ownership history, not just its most recent transaction, has to be reconstructed before relying on a books-recorded cost base for any related-party transfer.

The outcome

The internal transfer was restructured before filing: instead of new shares issued at the full $625,000 book value, the consideration was reduced to reflect the actual, hard-ACB-adjusted cost base, avoiding the deemed dividend by pricing the transfer correctly rather than trying to undo it after the fact. The restructuring pushed the broader family reorganisation back six weeks while the founder’s advisors reconstructed the full ownership history of every block of shares involved, not just the ones that had obviously changed hands recently.

What it would have cost otherwise

Filing the original structure would have produced a $625,000 deemed dividend, taxed as such rather than sheltered by any rollover treatment, on a transaction the parties had modelled as tax-free. The paid-up-capital consequences would also have followed the reduced cost base, permanently affecting how much the new holding company could later return to the founder as a tax-free capital repayment.

The tell

The tell was the age of the crystallisation relative to the current deal team’s knowledge of the file: nobody currently advising the founder had been involved eight years earlier, and the corporate minute book’s cost-base figure was taken at face value rather than independently re-derived from the Act.

Takeaways

• • s.84.1(2)(a.1)(ii) reduces a share’s adjusted cost base by any amount previously exempted under s.110.6 on that share or its predecessor — permanently, for every later non-arm’s-length transfer, not just the next one.
• • A books-recorded adjusted cost base reflects the crystallisation’s accounting entry, not necessarily the reduced figure the Act requires for a later related-party transfer — re-derive it from the Act before pricing an internal transaction.
• • The relevant history is the share’s full non-arm’s-length chain, not just the transaction immediately preceding the current one — a crystallisation eight years old is still inside the rule’s reach.
• • Pre-1972 shares run through a different valuation-day computation under s.84.1(2)(a) rather than the hard-ACB rule — confirm which regime applies before assuming either one.

Sources

• • Income Tax Act s.84.1(2)(a.1) — the hard-ACB reduction for a share acquired non-arm’s-length, including subparagraph (ii), the reduction for a prior s.110.6 exemption claim.
• • Income Tax Act s.84.1(2)(a) — the pre-1972 valuation-day substitute, referenced for the structural distinction.
• • Treadstone Academy — a freeze done ten years too late — a related but distinct crystallisation-timing problem, turning on the 24-month ownership test rather than the hard-ACB rule.
• • Treadstone Law — crystallising the capital gains exemption — general background on crystallisation. It does not address the hard-ACB consequence for a later non-arm’s-length transfer; the statutory text above is the operative rule.