In the previous article, we clarified the distinction between Holder and Writer, and how option gains may be characterized as either capital gains or business income.
Now we move into practical filing mechanics:
When do you report option income? How do you calculate it?
To determine the correct reporting treatment, ask three key questions:
- Who are you? (Holder or Writer)
• Are you dealing with a Call or a Put?
• What was the outcome? (Expired / Exercised / Closed early)
Step 1: Common Call Option Scenarios
- A) You Are the Holder (Buy a Call)
1️⃣ Expires Worthless
The premium becomes a capital loss in the year of expiry
(or a deductible loss if treated as business income).
2️⃣ Exercised (Buy at Strike Price)
The premium is added to the ACB (Adjusted Cost Base) of the shares.
No separate gain or loss is reported at that time.
3️⃣ Sold Before Expiry (Closed Position)
The net difference between selling price and purchase price
is reported as a gain or loss in the year of disposition.
- B) You Are the Writer (Sell a Call)
1️⃣ Expires Worthless
Under capital treatment, the premium is generally considered a capital gain in the year received (ITA s.49(1)).
Under business income treatment, it is recognized in the year of expiry.
2️⃣ Exercised (Shares Sold at Strike)
The premium is added to the proceeds of disposition.
Actual sale price = Strike Price + Premium
3️⃣ Closed Early (Buy Back to Offset)
Net premium received minus repurchase cost
is reported as gain or income in the year the position is closed.
Step 2: Common Put Option Scenarios
- C) You Are the Holder (Buy a Put)
1️⃣ Expires Worthless
Capital loss recognized in the year of expiry
(or business loss if applicable).
2️⃣ Exercised (Sell at Strike Price)
The premium reduces the proceeds of disposition.
Actual sale price = Strike Price − Premium
3️⃣ Sold Before Expiry
Selling price minus original premium
is reported as capital gain or loss in that year.
- D) You Are the Writer (Sell a Put)
1️⃣ Expires Worthless
Under capital treatment, typically recognized as a capital gain when received.
Under business income treatment, recognized at expiry.
2️⃣ Exercised (Shares Purchased at Strike)
The premium reduces the ACB of the acquired shares.
Actual purchase cost = Strike Price − Premium
3️⃣ Closed Early
Premium received minus repurchase cost
is recognized in the year of closing.
Step 3: The Cross-Year Timing Trap (Accountants’ Warning)
When treating Writer activity under capital account, a timing mismatch may arise:
- Year 1: You report the premium as a capital gain.
• Year 2: The option is exercised. The premium must then be integrated into the share transaction — it cannot remain as a standalone Year 1 gain.
• Consequence: You may need to amend the prior year’s return (T1-ADJ) to reverse the earlier capital gain.
Classic Example: How to Report a Collar Strategy
Facts
20X2:
• Holding 1,000 shares (ACB $70,000)
• Wrote 10 Call options, received $3,000 premium
• Bought 10 Put options, paid $6,000 premium
20X3:
• Share price declines
• Put exercised at $90 per share → total $90,000
• Call expires worthless
Capital Account Reporting Logic
20X2:
• Call expires worthless
• Report $3,000 capital gain
20X3:
• Share proceeds = $90,000 − $6,000 (Put premium)
• Net proceeds = $84,000
Capital gain:
$84,000 − $70,000 = $14,000
Quick Reference Table
| Scenario | Holder (Buyer) | Writer (Seller) |
| Expiry | Loss (reported in expiry year) | Gain (capital treatment usually in year received) |
| Call Exercised | Premium added to share cost | Premium added to sale proceeds |
| Put Exercised | Premium reduces sale proceeds | Premium reduces share cost |
| Closed Early | Net difference reported | Net difference reported |
Accountant’s Practical Reminders
1️⃣ Documentation Is Your Best Defense
For Writers especially, cross-year premiums can become “time bombs.”
If you reported a capital gain in Year 1 but the option was exercised in Year 2, you may need to amend prior returns.
Keep:
• Detailed option trade confirmations
• Expiry records
• Exercise notices
• Hedging strategy documentation
2️⃣ Beware of Naked Writing Risk
If you frequently write naked options for profit, the CRA may characterize the activity as 100% taxable business income, rather than 50% taxable capital gains.
3️⃣ Hedging Strategies Are Not Automatically Safe
Improperly structured collar strategies, especially those locking in value for extended periods, may trigger “synthetic disposition” rules — meaning tax could arise even if you did not actually sell the shares.
A Final Word from an Accountant
In the world of options,
profit depends on volatility.
But tax reporting depends on certainty.
If your trading volume was significant last year, or if you used complex hedging strategies, consider reviewing your full transaction records with a tax professional before the April filing deadline.
Compliance is not about paying more tax.
It is about avoiding future uncertainty.