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Worthless Shares in a Bankrupt Company: How to Claim the Loss in Ontario

If a company you hold shares in goes bankrupt, learn how Canadian tax rules let you claim a capital loss without needing to sell the shares first.

Tax5 min readTSLBy the Treadstone Law team · OntarioUpdated 2026-07
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Key takeaways
  • Under ordinary capital gains and losses rules, a loss crystallizes when you dispose of the property — you sell it, it's redeemed, or it's otherwise transferred out of your hands.
  • The Income Tax Act addresses this directly with an election that lets a shareholder treat shares of a corporation as having been disposed of for nil proceeds, and immediately reacquired…

When a company you've invested in goes bankrupt, the shares don't usually get "sold" in any normal sense — there's often no buyer, no market, and no transaction to point to. That creates a real problem for tax purposes: a capital loss generally requires a disposition, and if you never dispose of the shares, you can't claim the loss.

Canadian tax law has a specific answer to this problem. It lets you treat worthless shares as if you had disposed of them, even though you still technically hold them, so you can claim the capital loss without waiting for a sale that will probably never happen.

Why You Normally Need a "Disposition" to Claim a Loss

Under ordinary capital gains and losses rules, a loss crystallizes when you dispose of the property — you sell it, it's redeemed, or it's otherwise transferred out of your hands. Shares in a bankrupt private company often have no realistic path to a normal disposition: there's no buyer willing to pay for stock in an insolvent corporation, and the shares may never be formally cancelled.

Without a disposition, the shares just sit on your books indefinitely as an asset worth nothing on paper but still technically "owned" — which, absent a special rule, would leave you unable to claim the loss at all.

The Deemed-Disposition Relief for Worthless Shares

The Income Tax Act addresses this directly with an election that lets a shareholder treat shares of a corporation as having been disposed of for nil proceeds, and immediately reacquired at a nil cost, when the corporation meets certain insolvency-related conditions. In general terms, the corporation typically needs to be:

The practical effect is that you can crystallize the capital loss in the year the election is made, without needing an actual buyer, sale agreement, or formal share cancellation.

How This Differs From a Normal Share Sale

Selling Shares NormallyUsing the Worthless-Shares Election
Requires a buyerYesNo
Requires the company to still exist as a going concernNoNo — the election exists specifically because the company usually doesn't
Timing of the lossThe year of the actual saleThe year the election is filed, once the conditions are met
Ongoing share ownershipEnds when the shares transferYou're treated as reacquiring the shares immediately at nil cost, so any later recovery is treated as a new gain

What You'll Need to Support the Claim

Because there's no sale agreement to point to, documentation matters more here, not less. Be prepared to show:

A Few Things That Trip People Up

Frequently asked questions

Can I use this if the company simply stopped operating without a formal bankruptcy filing?

Possibly, if it meets the insolvency and no-reasonable-expectation-of-resuming-business conditions, but this is a facts-and-evidence-heavy determination. A company that's merely dormant or inactive, without clear insolvency, is a weaker case than one that's gone through a formal bankruptcy or winding-up process.

Do I need to actually give up my shares to make this election?

No — that's the point of the relief. You're treated as if you disposed of the shares and immediately reacquired them at nil cost, without an actual transfer.

What happens if the company later recovers and the shares become valuable again?

Because you're treated as reacquiring the shares at a nil cost base, any later value would generally produce a new capital gain when you eventually do dispose of them, calculated from that nil starting point.

Does this work the same way for shares held inside a corporation as it does for individuals?

The same type of relief is available to corporate shareholders, though how the resulting loss interacts with the corporation's own tax position is a separate question worth discussing with a tax professional.

This article is general information, not legal advice. Reading it does not create a lawyer-client relationship. Ontario laws, tax rates, and government programs change, and how the law applies depends on your specific facts. For advice about your situation, speak with a licensed Ontario lawyer. Treadstone Law is licensed by the Law Society of Ontario — reach us at 1-844-900-1070 or start a file online.

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