Bonuses in Canada are considered regular employment income and are taxed the same as your base salary. However, the timing and method of tax withholding can affect your take-home pay differently.
Basic Tax Treatment
Bonuses are considered taxable income and subject to all the same mandatory deductions as regular wages. The source deduction includes federal and provincial income tax, Canada Pension Plan (CPP) contributions, and Employment Insurance (EI) premiums.
The bonus is added to your total annual income and taxed according to Canada’s progressive tax system, where higher income levels have higher tax rates. Therefore, a big bonus pay may push some of your income into a higher tax bracket and result in a higher effective tax rate on that portion of income.
2025 Tax Rates and Contribution Limits
For 2025, the federal tax brackets are:
- 15% on income up to $55,867
- 20.5% on income from $55,867 to $111,733
- 26% on income from $111,733 to $173,205
- 29% on income from $173,205 to $246,752
- 33% on income over $246,752
Provincial tax rates vary by province and are added to federal rates.
CPP and EI maximums for 2025:
- CPP maximum contribution: $4,034.10 (5.95% rate on earnings up to $71,300)
- CPP2 additional contribution: $396.00 (4.00% rate on earnings from $71,300 to $81,200)
- EI maximum contribution: $1,077.48 (1.64% rate on earnings up to $65,700)
If you’ve already reached these annual maximums, no further CPP or EI deductions apply to your bonus.
Withholding Tax Calculation Methods
Employers use two methods to calculate tax withholding on bonuses:
1. Periodic Method (Default)
This method treats the bonus as part of your regular pay for that pay period. The employer adds the bonus to your regular salary and calculates tax as if this combined amount was your typical earnings. It often results in more upfront withholding because it assumes you receive this bonus amount every pay period.
2. Bonus Method
The bonus method calculates tax twice: once on your annual income including the bonus, and once without the bonus. The difference is the tax withheld on the bonus payout. This method typically results in more accurate withholding and often means less tax is deducted upfront.
Let’s look at an example comparison.
For an employee earning $1,600 bi-weekly with a one-time bonus of $5,000, the periodic method resulted in $1,813.41 in taxes withheld, and the bonus method resulted in $1,002.50 in taxes withheld. The difference is $810.91 less tax withheld using the bonus method.
Special Considerations
RRSP Direct Deposit Option
You can ask your employer to deposit your bonus directly into your Registered Retirement Savings Plan (RRSP) without withholding income tax if you have available contribution room. This allows you to invest the full pre-tax amount rather than the after-tax amount. It’s important to know that CPP and EI deductions must still be made before the RRSP transfer.
The requirement for the RRSP direct deposit is to ensure you have sufficient RRSP contribution room. You may need to provide a written confirmation of available room (Notice of Assessment or MyCRA printout) and provide advance notice to payroll (or the human resource department).
Timing Considerations
The employee’s income, including bonuses, is taxable when paid, not when earned. A February 2025 bonus is taxable in 2025, even if it was earned for 2024 performance.
Let’s look at an example.
Scenario: Sarah works for a company with a December 31 fiscal year-end. In December 2025, her company declared a $10,000 performance bonus for her excellent work throughout 2025. Due to company policy, the company doesn’t pay the bonus until February 15, 2025.
Tax Treatment:
- On the 2025 tax return, Sarah reports $0 bonus income, even though she earned it for 2025 performance.
- On the 2026 tax return, Sarah reports the full $10,000 bonus as employment income.
- T4 Slip: The employer issues the T4 showing the $10,000 bonus for the 2026 tax year.
- Withholdings: Income tax, CPP, and EI are deducted when paid in February 2026.
Low-Income Exception
If your total annual remuneration (including the bonus) is $5,000 or less, employers deduct a flat 15% tax (10% in Quebec) from the bonus.
Final Tax Calculation
The withholding method only affects your immediate take-home pay, not your actual tax liability. When you file your annual tax return, the Canada Revenue Agency (CRA) calculates how much income tax you owe based on all income for the year. If too much was withheld, you get a tax refund; if too little was withheld, you owe the difference.
Understanding these mechanics helps you plan for bonus payments and avoid unexpected tax obligations at tax time. Consider consulting a tax professional for complex situations or big bonus amounts.
