Overtime Tax Impact Calculator (Canada)
Estimate how overtime pay may change your take-home pay — and how much of the overtime goes to tax. Includes a visual net vs tax comparison and a clear paycheck breakdown.
Inputs
Results
| Paycheck breakdown | Amount |
|---|---|
| Regular gross (this pay period) | $0 |
| Overtime gross (this pay period) | $0 |
| Estimated tax on overtime | $0 |
| Overtime net | $0 |
| Estimated total gross (regular + overtime) | $0 |
Disclaimer: This is a planning estimate. Actual payroll withholding depends on CRA rules, credits, CPP/EI, and employer payroll settings.
Visual
How to use
- Enter your annual base gross income and pay frequency.
- Set regular hours per pay period and overtime hours you worked.
- Choose the overtime multiplier (1.5× is common).
- Use a tax method (marginal estimate or manual flat %) and click Calculate.
- Check the chart to see how much of overtime you keep vs how much goes to tax.
Why overtime can “feel” heavily taxed in Canada
Many Canadian workers notice that overtime pay often seems to produce less take-home than expected. The key reason is that payroll withholding is designed to estimate your annual tax based on the income in each paycheque. When a pay period includes overtime, the payroll system may assume that higher pay will repeat all year, which can push the estimated annual income into higher tax brackets. That can temporarily increase withholding on that cheque.
This calculator focuses on planning: it compares regular pay with pay that includes overtime, then estimates how much of the overtime gross might be withheld as tax. It is not a full CRA tax return simulator — it does not model every credit, deduction, CPP/EI detail, or employer payroll configuration. Instead, it helps you answer a practical budgeting question: “If I work X overtime hours, about how much extra cash will I actually take home?”
A useful way to interpret the result is the effective tax rate on overtime. If the tool estimates a 35% overtime tax rate, it means you keep roughly 65 cents from each overtime dollar (before any other paycheck-specific factors). If your real pay stub shows a different impact, you can switch to the manual mode and enter the overtime tax rate that matches your situation — then use the calculator to explore different overtime hour scenarios.
Overtime can still be worth it even with higher withholding, especially if it helps you reach savings goals or reduce debt faster. Also remember: withholding is not always your final tax. When you file your return, your actual tax is calculated from total annual income and credits. In some cases, higher withholding during overtime-heavy periods can translate into a larger refund (or a smaller amount owing), depending on your overall situation.