Buying the Same Stock Back Through a Corporation You Control: The Superficial Loss Trap in Ontario

If you run a holding company or a professional corporation alongside your personal investments, one workaround can look tempting: sell a losing stock personally, then have the corporation buy the same stock back. A corporation is its own legal person, after all — surely that is different from a spouse or a joint account. For the superficial loss rule, it usually isn't different enough.

The Idea, and Why It Falls Short

The superficial loss rule denies a capital loss where you, or a person affiliated with you, reacquire the same or an identical property within the restricted period around your sale and still hold it at the relevant time. The Income Tax Act's definition of "affiliated persons" is written broadly enough to reach a corporation you control, precisely to close off this kind of routing.

Corporations Can Be Affiliated Persons Too

A corporation controlled by you, by your spouse, or by both of you together is generally treated as affiliated with you under the Income Tax Act. That means a repurchase by your holding company, a professional corporation, or another corporation under your control is treated much the same as if you had personally bought the shares back — the separate legal personality of the corporation does not take it outside the rule.

What Counts as "Control" Here

Control for this purpose generally turns on the ability to direct the corporation's affairs, most often through voting share ownership, rather than requiring outright 100% ownership. A corporation you own jointly with an unrelated business partner may or may not be treated as controlled by you, depending on the specific voting and ownership structure — a fact-specific question worth confirming with a tax professional before you assume either answer.

The same question can come up with a family holding company, where voting shares are split between you, a spouse, and sometimes adult children as part of an estate freeze or other structuring. Layered ownership like that does not automatically defeat the affiliated-persons test, and it can make the "who controls this corporation" question harder to answer without reviewing the actual share structure and any shareholders' agreement.

The Result: Deferral Shifted to the Corporation, Not an Escape

Where the corporation is affiliated with you and the conditions are met, the loss is denied to you personally. As with a spousal repurchase, the denied amount is generally added to the corporation's adjusted cost base for the shares it now holds, so the loss is preserved within the corporate structure rather than eliminated outright — but it now belongs to the corporation, not to you, until the corporation eventually disposes of the shares to someone unaffiliated with both of you.

That shift has real consequences. A capital loss sitting inside a corporation with no capital gains of its own to absorb it may be far less useful in practice than the personal capital loss you were trying to preserve.

Comparing the Outcomes

When the Rule Stops Applying

Affiliation has to exist at the relevant times under the rule. If control of the corporation genuinely changes — for example, the corporation is later sold to an unrelated party, or you and your spouse no longer control it — a subsequent repurchase by that corporation may fall outside the rule. Structuring a change in control specifically to defeat this rule, however, invites close scrutiny, and the analysis is fact-specific enough that it deserves advice before you rely on it.

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