Harvesting a crash without the superficial-loss trap
A capital loss offsets capital gains in the same year, carries back up to three years, and carries forward indefinitely, so a bear-market year can refund tax you already paid on a bull one. The catch is the superficial-loss rule: sell a coin and reacquire the identical property within 30 days before or after, whether by you, your spouse or a corporation you control, and the loss is denied and pushed into the cost base of the repurchased coins instead.
Identical property is identical everywhere. Selling bitcoin on one exchange and buying it back into a cold wallet the same week is still the same property, and the rule still bites. The clean pattern is thirty-one days out of the position, or a genuine switch to a different asset. There is no substitute coin close enough to keep your exposure yet different enough to save the loss, and structures that pretend otherwise read poorly at review.
Collapsed platforms and worthless tokens
A frozen exchange is not yet a loss. Coins stranded on a collapsed platform, QuadrigaCX then, FTX since, generally support a claim only once a disposition has occurred or the loss is actually established, and that timing takes judgment. What makes the claim survivable is paper gathered early: statements or screenshots of final balances, the bankruptcy or claim filings with your account on them, and correspondence with the platform or its monitor. We help you assemble that file while the evidence still exists, then pick the year the claim belongs in.
A token that went to zero but still sits in your wallet is a different problem. The worthless-property election in subsection 50(1) covers shares and debts, and most tokens are neither, so crystallizing the loss usually takes an actual disposition to an unrelated party at a real, if tiny, price. That is a step to take before December 31, not a theory to argue in April.
| Loss scenario | Usual treatment | What keeps it claimable |
|---|---|---|
| Sold in a crash, stayed out 31+ days | Capital loss in the year of sale | Trade records and the CAD cost base of the lots sold |
| Sold, then rebought within 30 days | Superficial loss, denied | Nothing; the loss moves into the new position's cost base |
| Coins on a collapsed exchange | Claimable once the loss is established | Final balances, claim filings, correspondence, gathered early |
| Worthless token still in the wallet | No loss until a disposition | Evidence of a real disposition, not just a zero quote |
Which year the gain lands, and what is left to pay it
Because a disposition is complete the moment you swap, the tax bill can outlive the money. The classic failure: a large gain crystallized mid-year by rotating into another token, the new token falls, and April's balance is owed on wealth that no longer exists. The fix is set at the moment of the gain, not at filing: park the tax share of the proceeds in dollars the week the gain happens.
Timing is the other half. Straddling sales across December and January splits them between two taxation years and two sets of brackets, and a low-income year, a sabbatical, a startup year, is the cheap year to realize gains that were coming anyway. For retired holders, one big gain year can inflate net income enough to claw back Old Age Security. And a strong year drags instalments behind it: once your balance owing passes $3,000 in the current year and one of the two before it, the CRA expects quarterly payments, which we set deliberately instead of letting interest accrue on a surprise.
Giving, spouses and cleaning up old years
Donating appreciated coins earns a receipt at fair market value, but unlike gifts of publicly listed securities, the capital gain is not zeroed: coins are not listed securities, so the gain is taxed even while the receipt shelters other income. Whether to give coins, cash or something else is a calculation we run, not a habit. Moving coins to a spouse does not move the tax either; attribution sends the gain back to you unless the transfer is deliberately structured at fair market value.
For past years that never made it onto a return, the Voluntary Disclosures Program can relieve penalties when you correct the record before the CRA makes contact, and with platform reporting expanding every year, that window only shrinks. We reconstruct the history, quantify the exposure and file the correction as one exercise. Tax Planning & Advisory runs on a written scope after a free 15-minute discovery call, and our decisions library shows how we frame calls exactly like these.
