Three provisions can execute a freeze. They have three different conditions and three different ways to fail.
Short answer
No. Section 51(1) lets a taxpayer exchange a convertible share or debt instrument for a new share of the same corporation with no election, no prescribed form, and no deadline — provided the exchange is purely for shares and the instrument being exchanged already carries a contractual conversion right.
Under section 51(1), where a share is acquired from the corporation in exchange for another share or a convertible bond, debenture or note, and no consideration other than the share is received, “the exchange is deemed not to be a disposition of the convertible property”. No prescribed form, no joint election, and no filing deadline attaches to it — the deferral is automatic on the facts, which is exactly why it is easy to miss as an option.
Section 51 only helps where the instrument being exchanged was drafted with a conversion right in the first place, typically sitting in the articles from the corporation’s original organization. Sections 85 and 86 remain the general-purpose tools where no such convertible instrument exists, and each carries its own conditions and, for section 85, a filing deadline in subsection 85(6) with a late-filing penalty under subsection 85(7).
In one file, the cheapest route to a freeze had been sitting in the articles since incorporation, and section 51 reached the same commercial result as a section 86 exchange with none of its filing risk. A related file shows the valuation-protection question that still applies once a freeze has been chosen, whichever section executes it.
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