Working overtime means giving up extra hours — and, too often, a paycheque that disappoints when it lands. Many employees in Quebec conclude that these hours are "taxed more heavily" than the rest. They are not: overtime is paid more, thanks to time-and-a-half, but taxed at exactly the same rate as the rest of your salary. Here is the calculation, from gross to net.
How time-and-a-half is calculated
In Quebec, the standard work week is 40 hours. Every hour worked beyond 40 hours in a single week is an overtime hour. It is paid at time-and-a-half: your usual hourly wage, increased by 50%. This is the basic rule of the Act respecting labour standards, and it applies even if your usual schedule is shorter than 40 hours.
A simple example: if you earn $30 an hour, each overtime hour is worth $45 ($30 × 1.5). The calculation is done by week, not by day: what counts is the hours beyond 40 in the week.
Time off instead of a payment
You can also, at your request, be paid in time rather than in money. The employer then replaces the payment with paid leave equal to the hours worked, also increased by 50%: one overtime hour gives you 1.5 hours off, to be taken within the period set by law. Some jobs, such as farm work, are not entitled to the premium.
No, your overtime is not "over-taxed"
The idea that overtime is taxed more heavily is a stubborn myth. In reality, this pay is ordinary employment income: it is added to your salary and follows the same rules.
What is misleading is the deduction on your pay stub. When a paycheque is bigger than usual, the payroll withholding system calculates tax as if you earned that amount all year long. The deduction therefore looks high at the time. But it is only an advance: the gap is corrected on your tax return, where only your real income for the year is taxed.
To see why, you have to tell two rates apart. The average rate is your total tax divided by all of your income. The marginal rate is the percentage of tax on the next dollar you earn — and it is the one that applies to your overtime. We spell out this difference in our article on the marginal versus average tax rate.
What the marginal rate takes from your overtime
Take a $60,000 salary. At that level, the marginal rate is around 36%. Let's break it down. Quebec charges 19% tax on that slice of income. The federal government applies its own federal tax rate, slightly reduced by the Quebec abatement — a 16.5% cut in federal tax that is reserved for Quebec residents. Added together, they take about 36 cents of tax on each overtime dollar.
That is not all: as long as you are below the annual ceilings, contributions to the QPP, Employment Insurance and the QPIP still take close to 8% of that dollar. In total, you keep a little more than half of each dollar earned in overtime. The table below shows where the money goes on a $60,000 income.
| What gets withheld | Annual gross | Share of gross |
|---|---|---|
| Federal tax | −$4,633 | 7.7% |
| Provincial tax | −$5,386 | 9.0% |
| QPP | −$3,560 | 5.9% |
| Employment Insurance | −$780 | 1.3% |
| QPIP | −$258 | 0.4% |
| Total withheld | −$14,617 | 24.4% |
| Annual net | $45,383 | 75.6% |
Near a ceiling, the math changes
Payroll contributions are not deducted indefinitely: each one stops at an income ceiling. Once that ceiling is reached during the year, you no longer contribute to that program — overtime worked afterwards escapes that contribution, but is still taxed as before.
| Contribution | 2026 income ceiling |
|---|---|
| Québec Pension Plan (QPP) | $74,600, then a second ceiling at $85,000 |
| Employment Insurance (EI) | $68,900 |
| Québec Parental Insurance Plan (QPIP) | $103,000 |
The QPP ceilings are confirmed by the Canada Revenue Agency, as is the maximum insurable earnings for Employment Insurance. In concrete terms: overtime worked in December, once your earnings have already passed $68,900, no longer costs any EI premium — a good part of the year-end "bonus" you notice comes from that.
In practice
- Your overtime is paid at 1.5 times your rate, beyond 40 hours a week.
- It is taxed at your marginal rate, never at a higher "special" rate.
- The large deduction on your pay stub is corrected on your tax return.
- Near a contribution ceiling, part of the deductions stops and your net pay rises.
- For your own figure, run your salary — overtime included — through the net pay calculator.
Frequently asked questions
Is overtime taxed more than regular pay?
No. An overtime hour is ordinary employment income, taxed at your marginal rate like the rest of your salary. The deduction on your pay stub can look higher because it is calculated as if the big paycheque repeated all year, but the gap is corrected on your tax return.
After how many hours am I entitled to time-and-a-half in Quebec?
Beyond 40 hours in a single week. The standard work week is 40 hours: every hour worked on top of that is paid at time-and-a-half, meaning your hourly wage increased by 50%.
Can I take time off instead of being paid for my overtime?
Yes, at your request. The employer can replace the payment with paid leave equal to the hours worked, increased by 50%: one overtime hour gives you 1.5 hours off, to be taken within the period set by law.
How much do I keep on an overtime hour?
On a salary of about $60,000, tax takes close to 36% of each dollar and contributions (QPP, EI, QPIP) close to 8%, as long as you are below the ceilings. So you keep a little more than half. The Salarium calculator gives the exact figure for your income.