Comprehensive Income Tax Calculator (Canada)

What the comprehensive income tax calculator does

The calculator works out your Canadian after-tax income by adding up every compulsory charge on employment earnings, not just income tax. Enter your income, province or territory and employment type, and it returns federal tax, provincial tax including surtax, the Ontario Health Premium, CPP or QPP, EI, Quebec’s QPIP and the after-tax income left over, with your average and marginal rates.

On a typical Ontario salary, payroll contributions and the Health Premium add several thousand dollars a year on top of income tax. Leaving them out overstates take-home pay.

What comes out of your pay

• Federal tax on your taxable income at the federal brackets, less the basic personal amount as a credit at the lowest rate. The basic personal amount is lower for net incomes above the start of the 29% bracket.
• Provincial or territorial tax on that jurisdiction’s brackets, less its own basic personal amount, plus Ontario’s surtax once provincial tax passes the surtax thresholds.
• The Ontario Health Premium for Ontario residents, rising in steps up to a maximum and collected through the tax return.
• CPP on pensionable earnings between the basic exemption and the year’s maximum pensionable earnings, plus the second additional contribution (CPP2) on earnings up to the higher second ceiling.
• EI on insurable earnings up to the yearly maximum; the self-employed do not pay it.
• In Quebec, QPP instead of CPP at a higher rate, QPIP premiums, and an abatement of basic federal tax.

The total of these, subtracted from gross income, is after-tax income, shown annually and monthly.

A worked example in Ontario

An Ontario employee earning $90,000 with no RRSP contribution in 2026:

• CPP: the maximum base contribution of $4,230, plus $416 of CPP2, $4,646 in total.
• EI: premiums capped at the yearly maximum, $1,123.
• Relief for those contributions: the enhanced part of CPP, $1,127, is deducted from income, so tax is calculated on $88,873. The base part, $3,519, plus the EI premiums are claimed as a credit at the lowest rate, worth $884 federally and provincially combined.
• Federal tax: about $14,415 on the brackets, less $2,953 for the basic personal amount and contribution credit, leaving $11,462.
• Ontario tax: about $5,922 on the Ontario brackets, less $890 for the Ontario basic personal amount and contribution credit, giving $5,032, below the first surtax threshold.
• Ontario Health Premium: $750 at this income.

Total tax and contributions are $23,013, leaving $66,987 a year, or $5,582 a month, an average rate of 25.6%. Counting income tax alone would show $16,494 and overstate take-home pay by more than $6,500.

Contributions are not simply money gone

The Income Tax Act gives relief for CPP and EI, but not in the same way. The base CPP contribution, the 4.95% that predates the 2019 enhancement, is a non-refundable credit at the lowest rate, along with EI and, in Quebec, QPIP premiums. The enhanced contribution, the extra 1% plus all of CPP2, is a deduction from income, which is worth more per dollar because it saves tax at your marginal rate.

In the Ontario example those are worth about $1,219 a year: $884 from the credit and about $335 from the deduction. A tool that ignores them reports federal tax of about $12,343 instead of $11,462. This calculator applies both automatically.

If you are self-employed, you pay both halves of the contribution; half of the base contribution is credited and the rest, including all the enhanced contributions, is deducted.

Average rate versus marginal rate

The average rate divides everything you pay by everything you earn and is the right number for budgeting. The marginal rate is what the next dollar costs in federal and provincial income tax and is the right number for decisions such as overtime, a bonus or an RRSP contribution. In the Ontario example the average rate is 25.6% and the marginal income tax rate is 29.65%. Higher up, the gap widens, because Ontario’s surtax raises the provincial marginal rate once provincial tax passes its thresholds.

Deductions and extra credits

An RRSP contribution and other deductions reduce taxable income, lowering federal and provincial tax but not CPP or EI. Enter one and the drop in total tax is your refund.

Two more fields take additional non-refundable credit amounts, federal and provincial. Enter the base amounts, not the credit value, and the calculator applies the lowest rate. The Canada employment amount, tuition, medical expenses and donations belong here. Do not enter CPP or EI contributions, which are already claimed.

Common mistakes to avoid

• Ignoring the payroll ceilings. CPP and EI stop once you reach the yearly maximums.
• Missing the Ontario Health Premium, which is collected inside income tax rather than billed separately.
• Treating Quebec as just a different rate; QPP, QPIP and the federal abatement all change the total.
• Forgetting CPP2 on earnings above the first ceiling.
• Comparing gross salaries across provinces instead of after-tax income.

Assumptions and limitations

The calculator models one person with a full year of employment income. It does not include refundable credits such as the GST/HST credit or child benefits, or Quebec’s reduced EI rate, so Quebec residents pay somewhat less EI than shown because QPIP covers their parental benefits. It uses taxable income as the base for the income-dependent amounts: the federal basic personal amount, and Yukon’s, falls from its maximum once income passes the start of the 29% bracket and reaches its minimum at the start of the 33% bracket; Manitoba’s falls to zero between $200,000 and $400,000; and the Ontario and British Columbia tax reductions cut provincial tax at low incomes. Payroll withholding may differ from the annual result because employers withhold each pay period.

Every rate, bracket, threshold and ceiling is a maintained parameter from official sources. Results are estimates and general information, not tax advice. Confirm your position with a Canadian tax professional before acting on it.

About This Comprehensive Income Tax Calculator

Use this comprehensive income tax calculator to get an instant, accurate estimate. The figures follow official CRA guidance and every rate and threshold is kept up to date for 2026. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.