Key Takeaways
- Listed put and call options are qualified investments, so buying calls and puts is allowed inside a TFSA or RRSP — your maximum loss is the premium you paid.
- Covered calls on shares the plan owns are the one selling strategy the CRA clears; put writing and uncovered calls may make the plan a business.
- Brokers add their own caps on top of the tax rules — most limit registered accounts to buying options and covered calls, and spreads and naked options stay in margin accounts.
Start With the Rule That Decides Almost Everything
Every option question inside a TFSA or RRSP runs into the same CRA document: Income Tax Folio S3-F10-C1, the qualified-investments rulebook for registered plans. Two of its paragraphs quietly sort the whole options menu into "fine" and "trouble."
The first is generous. Paragraph 1.16 says that any security listed on a designated stock exchange is a qualified investment — and its list says, in so many words, "put and call options." Buying a call or a put inside your TFSA is no different, in CRA's eyes, from buying a share: it is a listed security, it is qualified, and if it expires worthless your loss stops at the premium you paid. That last part is not a detail. The same paragraph excludes futures and other derivatives "in respect of which the holder's risk of loss may exceed the holder's cost" — a plan may only hold positions whose worst case is the money already spent. A bought option qualifies. A position that can lose more than it cost does not.
The second paragraph governs selling. Paragraph 1.40 notes that writing an option acquires nothing but the premium, so option writing "in and of itself, is generally not subject to the qualified investment rules." Then paragraph 1.41 draws the line that matters: writing a covered call on property the plan already owns "does not result, in and of itself, in the plan being considered to be carrying on a business. In contrast, the writing of an uncovered call option, or the writing of a put option, whether alone or in combination with other positions, may result in the plan being considered to be carrying on a business." A registered plan that carries on a business is taxed on that business income — inside a TFSA, the tax lands on the plan under Part I of the Act, and the folio notes the TFSA holder is jointly liable for it. The shelter does not merely bend on that income; it disappears, with a tax bill attached.
The Menu, Strategy by Strategy
Buying calls and puts — yes. Qualified investments under ¶1.16, loss capped at the premium, offered by effectively every broker in registered accounts. Two quiet conditions ride along: the CRA tests an option by assuming it is exercised (¶1.39), and any property a plan actually acquires must itself be a qualified investment (¶1.43) — so exercise into an unlisted or non-qualified share is a problem, which is one reason brokers restrict which underlyings you can trade.
Writing covered calls — yes, with the CRA's own blessing. This is the strategy behind Twikup's covered-call half of the Wheel: you own 100 shares, you sell a call against them, and the shares themselves cover the obligation. It is the one form of option writing the CRA names as not, in itself, a business — and brokers treat it accordingly, typically as their mid-tier permission in registered accounts.
Writing cash-secured puts — the grey zone, and it is broker-dependent. The cash-secured put is fully collateralized by cash, so it feels as safe as a covered call — but ¶1.41 names put writing, not naked risk, as the business-activity concern, and the folio adds that a plan cannot borrow to meet an assignment and that cash held as broker margin stops being a qualified investment if it sits more than a few days. Broker practice is genuinely split: Wealthsimple's current help pages list secured-put selling among the strategies available in registered accounts, while Questrade caps registered accounts at its Level 2 — buying options and covered calls — with everything above that reserved for margin accounts. RBC Direct Investing publishes a menu of buying calls and puts and writing covered calls, with no spreads offered at all. The lesson is unglamorous: what your broker's app permits is a product decision; what the CRA taxes is a separate question, and a broker offering a strategy does not repeal ¶1.41.
Spreads, naked options, short straddles — no. Multi-leg spreads are margin products at Canadian brokers (Questrade puts them at Level 3, margin-only), and anything uncovered fails the folio twice over: loss can exceed cost on the ¶1.16 test, and uncovered writing is exactly what ¶1.41 warns about.
The Business Trap Is Bigger Than Options
Even where a strategy passes the folio, volume can sink you. The CRA's test for whether a TFSA is carrying on a business is a question of fact, judged on the factors in its Interpretation Bulletin IT-479R: frequency of transactions, short holding periods, knowledge of securities markets, time spent, financing, advertising, and the speculative nature of what is traded. No single factor decides it — the combination does. A retiree selling four covered calls a year on a blue-chip holding is in a different universe from an account writing weekly puts on volatile names, even if both used "options in a TFSA." The more your registered account looks like a trading desk, the more it risks being taxed like one.
The Twikup Take
Registered accounts and options are not enemies — the CRA's own folio lists options as qualified investments, and buying them or writing covered calls is squarely allowed. The danger lives in one word: writing puts feels safe because the cash is sitting there, but it is the single strategy the CRA singles out by name. Keep the put leg in a non-registered account, let the registered accounts do the strategies the folio blesses, and check your own broker's levels before assuming the app and the tax rules agree.
Image: Illustrative image.