- Your marginal rate applies only to your next dollar; your average rate is what you actually pay, and it is always lower.
- Canada shelters the first slice of income with a credit at the lowest rate; the US subtracts a standard deduction before any bracket applies.
- Payroll deductions are not income tax — they follow their own caps, and they are why take-home pay falls short of income minus tax.
- Region choice moves the total by thousands: pick yours for the full bracket table and a region-specific worked example.
How the income tax calculator works
This tool estimates your 2026 income tax and take-home pay for any Canadian province or territory and any US state. It applies that region’s own marginal brackets on top of the federal brackets, along with the basic personal amount (Canada) or the standard deduction (US), so higher earnings are taxed progressively rather than all at one rate.
The math
Both countries tax progressively: income is sliced into bands and each band is taxed at its own rate, so a raise is taxed at your top rate while everything below it is unaffected. The calculator applies the federal schedule first, then the region’s own schedule on top, and reduces the result by the credit or deduction that shelters the first slice of income — Canada’s basic personal amount, applied as a credit at the lowest rate, or the US standard deduction, subtracted from income before any bracket is touched. That structural difference is why two regions with similar headline rates can produce different take-home pay.
Payroll deductions are then applied separately, because they are not income tax and do not follow the same brackets: Canada Pension Plan or Quebec Pension Plan contributions and Employment Insurance premiums in Canada, each capped at its own annual maximum; Social Security and Medicare in the US, the first capped and the second not.
What is left out: most credits beyond the personal amount or standard deduction, provincial surtaxes, local and city income taxes, and anything you have not entered under Advanced options. It is a close estimate of a straightforward return, not a substitute for filing one.
Worked example
On $85,000 of employment income in Ontario, the calculator returns $11,545 of federal tax and $4,912 of provincial tax — $16,457 in total, an average rate of 19.4% — plus $4,646 of Canada Pension Plan and $1,123 of Employment Insurance. Take-home pay is $62,774, and the next dollar earned is taxed at 29.6%.
The same $85,000 in California produces $9,870 of federal tax and $3,932 of state tax — $13,802, an average of 16.2% — plus $6,503 of Social Security and Medicare, for take-home pay of $64,695. The headline income tax is lower and the payroll deduction is higher, which is the pattern across most of the comparison and the reason a single cross-border rate quote is never useful.
Key terms
- Marginal rate
- The rate on your next dollar earned — your top bracket. It is what matters for a raise, a bonus or a deduction, and never what you pay on the whole income.
- Average (effective) rate
- Total tax divided by total income. Always lower than the marginal rate, because the earlier slices of income were taxed in lower brackets.
- Basic personal amount / standard deduction
- The slice of income that escapes tax. Canada does it as a non-refundable credit at the lowest rate; the US subtracts a fixed amount from income before brackets apply.
- Payroll deductions
- Contributions taken off pay that are not income tax — Canada Pension Plan or Quebec Pension Plan and Employment Insurance in Canada, Social Security and Medicare in the US. Each has its own rate and annual cap.