How much income tax might I pay?

Your income tax depends on taxable income, province or territory, credits and deductions. Canada uses federal tax brackets plus provincial or territorial tax, so two people with the same income can owe different amounts depending on where they live.

Federal tax is calculated using progressive brackets that are indexed over time. Only the portion of taxable income within each bracket is taxed at that bracket’s rate, rather than all income being taxed at the highest rate reached.

A simplified calculation starts with total income, subtracts eligible deductions to determine taxable income, applies federal and provincial tax rates, then subtracts eligible non-refundable and refundable credits. Payroll contributions such as CPP/QPP and EI are separate from income tax but affect take-home pay.

Your marginal rate applies to the next dollar of taxable income within your current bracket, while your average rate is total income tax divided by income. Because lower portions of income are taxed at lower rates, the average rate is usually lower.

Yes. Provinces and territories have their own tax brackets, rates and credits, which can create meaningful differences in total tax for the same taxable income.