Tax Treatment of Share-Based Compensation in Canada: Stock Options and RSUs
Share-based compensation is common in private and public companies. Understanding the tax implications helps employees and employers plan effectively.
Types of Share-Based Compensation
1. Stock Options (ESOP)
Employee receives option to buy shares at predetermined price (strike price).
2. Restricted Stock Units (RSUs)
Employee receives units that convert to shares upon vesting.
3. Performance Stock Units (PSUs)
RSUs with performance conditions that must be met.
Tax Treatment: Stock Options
Regular Tax Treatment
- At exercise: Employment income = (FMV - Strike price) × number of shares
- Income is subject to tax at marginal rate
- Capital gain = (Sale price - FMV at exercise) × number of shares
Stock Option Deduction (Section 110)
Employees may claim 1/2 of stock option benefit as deduction if:
- Employer is a Canadian-controlled private corporation (CCPC)
- Or shares are listed on designated stock exchange
- Employee deals at arm's length with employer
Example: Stock Option Tax
Scenario:
- Strike price: $10
- FMV at exercise: $30
- Shares sold: 1,000
Tax calculation:
- Employment income: ($30 - $10) × 1,000 = $20,000
- Stock option deduction (50%): $10,000
- Net inclusion: $10,000 (taxed as regular income)
Tax Treatment: RSUs
- RSUs taxed as employment income when shares vest
- No stock option deduction available
- FMV at vest date = taxable benefit
- Any increase after vest = capital gain
PSUs
- Similar to RSUs
- Taxed when performance conditions met and shares vest
- No stock option deduction
Employer Deductions
- Corporation gets deduction equal to employee income inclusion
- Creates "double deduction" for stock options with 1/2 deduction
Key Differences
| Feature | Stock Options | RSUs |
|---|---|---|
| Tax at exercise/vest | Yes (unless election) | Yes |
| Stock option deduction | Yes (if eligible) | No |
| Downside risk | Employee | Employer |
| Upside potential | Unlimited | Limited to FMV |
Key Takeaways
- Stock options can get 50% deduction if eligible
- RSUs taxed fully as employment income at vest
- PSUs same treatment as RSUs
- Employer gets corresponding deduction
