Net pay on a Canadian bonus.
Net bonus in pocket
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Tax + deductions on bonus
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Your breakdown
Updates live as you type| Component on the bonus | Amount |
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Why your bonus feels like it gets hammered
A bonus is not taxed under some special punitive rate, despite how the deduction line on your pay stub looks. It is ordinary employment income, and it stacks on top of the salary you already earn. Because Canada uses a progressive system, that stacked dollar is taxed at your highest, or marginal, bracket rather than your average rate. This tool captures exactly that effect. It computes your total federal tax, provincial tax, CPP, CPP2 and EI on your salary alone, then again on your salary plus the bonus, and the difference is the real cost of the bonus. Whatever is left is what lands in your account.
The progressive piece matters most around bracket boundaries. The 2025 federal brackets run 15 percent up to $55,867, then 20.5 percent, 26 percent, 29 percent, and 33 percent above $246,752. A bonus that pushes you from one band into the next is split: part is taxed at the old rate, part at the new one. Add your provincial brackets on top and a single bonus can straddle three or four marginal rates at once.
The payroll method versus what you actually owe
The reason a bonus often looks over-taxed on the pay stub is the CRA bonus withholding method. Payroll annualizes the bonus, works out the tax on that grossed-up figure, and withholds accordingly, which frequently pulls more than your true marginal rate. None of that is your final tax. The T1 return you file reconciles every dollar withheld against what you actually owe, and any excess comes back as a refund. This calculator skips the withholding distortion and shows the underlying economic cost, which is the number that matters for deciding whether to take a bonus as cash or redirect it.
A $15,000 bonus on an $80,000 Ontario salary
Take the default inputs: an $80,000 base salary in Ontario with a $15,000 bonus. Your base salary already clears the CPP, CPP2 and EI ceilings well before the bonus is added, so almost none of the bonus attracts fresh payroll contributions. What it does attract is income tax at your combined Ontario and federal marginal rate, which here sits at 20.5 percent federal plus 9.15 percent provincial. The tool reports a total tax and deduction hit of $4,495.50 on the bonus, leaving $10,504.50 in pocket, an effective rate of 30.0 percent.
Change the province and the picture shifts. A Quebec resident on the same figures faces the province’s own brackets and tax system, softened by the 16.5 percent federal abatement that lowers the federal portion, plus QPP and QPIP rather than the CPP and EI used elsewhere. Alberta, with its flatter 10 percent provincial bottom rate, keeps more of a mid-size bonus than Nova Scotia or Newfoundland do.
Turning the tax bill into a planning lever
The most useful move this tool surfaces is timing. If a December bonus would tip you into a higher bracket, ask your employer whether it can be paid in January instead, spreading the income across two tax years. Better still, an RRSP contribution made with bonus money is deducted at your marginal rate, so on the example above a $5,000 RRSP top-up would claw back roughly $1,480 of the tax shown. Some employers will even contribute the bonus directly to your RRSP and skip the income tax withholding entirely, which is cleaner than getting taxed and waiting for the refund.
Who is this for? Anyone weighing an offer that mixes salary and bonus, an employee deciding how much of a year-end payout to shelter, or a contractor comparing a lump sum against a higher base. The common mistake is reading the withholding on the pay stub as the final tax and assuming the bonus was robbed. It was not. The number this calculator shows, your true marginal cost, is what you should plan around.
Will I get some of the withheld tax back?
Often, yes. Because payroll annualizes a one-time bonus, the amount withheld at source can exceed your real marginal rate, especially if the bonus is large relative to your salary. The gap is settled when you file your T1. If too much was withheld across the year, the CRA refunds it. This tool deliberately shows the economic tax, not the inflated withholding, so the figure here is closer to what you ultimately keep.
Does a bonus affect my RRSP room?
Yes, and in your favour. RRSP room is 18 percent of the prior year’s earned income up to the annual dollar limit, which is $32,490 for 2026, and a bonus is earned income. So a bigger bonus this year quietly raises the contribution room you can use next year. That makes the bonus-into-RRSP strategy self-reinforcing: the payout both creates the room and supplies the cash to fill it.