The order of operations, not the tax rate, is what decides an executor's personal exposure.
Short answer
Yes — if an executor distributes estate property before obtaining a tax clearance certificate, section 159(3) of the Income Tax Act makes them personally liable for whatever the estate turns out to owe, up to the value of what they already gave away, even if the debt was not discovered until after the distribution.
Section 159(2) requires a legal representative to, “before distributing to one or more persons any property in the possession or control of the legal representative acting in that capacity, obtain a certificate from the Minister” confirming the taxpayer's amounts owing are paid or secured. Distribute first, and s.159(3) applies: “the legal representative is personally liable for the payment of those amounts to the extent of the value of the property distributed.”
That cap sounds protective and often is not. It caps the executor's liability at the value already given away — not at the amount the estate actually owed. Distribute the whole estate, and a modest tax debt discovered afterward can still reach every dollar paid out, because the cap and the debt are not the same number.
This is a different certificate from the one a non-resident vendor needs under section 116, and different again from a provincial bulk-sale certificate — three separate regimes with three separate applicants and triggers, and “clearance certificate” means whichever one is actually in play. It also does not matter whether the underlying tax debt was known at the time of distribution: a routine post-mortem payroll audit that surfaces arrears predating death becomes the estate's debt, and if distribution already happened, the executor's personal exposure.
Selling the deceased's business assets rather than distributing cash raises a separate, narrower question — which GST/HST election an estate actually needs, not the ordinary going-concern one.
A 30-minute call is enough to tell you which of these facts applies to your deal.
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