Frequently Asked Questions
What payroll deductions does Canada require?
Canadian employers must withhold three categories of deductions from employment income each pay period: federal and provincial income tax, Canada Pension Plan (CPP) contributions, and Employment Insurance (EI) premiums. These amounts are remitted to the Canada Revenue Agency (CRA) on the employee's behalf. The exact amounts depend on gross earnings, pay frequency, province of employment, and the employee's TD1 claim.
What is CPP and how is it calculated?
CPP (Canada Pension Plan) is a mandatory federal pension contribution for employed Canadians outside Quebec. For 2026, contributions are calculated at 5.95% on pensionable earnings between the Year's Basic Exemption ($3,500) and the Year's Maximum Pensionable Earnings ($71,300). Earnings below the exemption threshold and above the YMPE are not subject to the base CPP rate. The maximum employee contribution for 2026 is approximately $4,034.
What is CPP2 and who pays it?
CPP2 is a second-tier CPP contribution introduced as part of the CPP enhancement phase-in beginning in 2024. It applies to earnings above the standard YMPE ceiling ($71,300 in 2026) up to a second ceiling called YMPE2 ($81,900 in 2026), at a rate of 4.0%. Only employees earning above the YMPE are subject to CPP2. The maximum CPP2 contribution for 2026 is $424 ($81,900 − $71,300 × 4.0%).
How is EI calculated?
EI (Employment Insurance) premiums are calculated at 1.66% of insurable earnings up to the maximum insurable earnings of $65,700 for 2026, producing a maximum annual employee premium of $1,090.62. Employers contribute at 1.4 times the employee rate. Once an employee's cumulative insurable earnings reach $65,700 in the calendar year, no further EI is deducted for the remainder of the year.
What is the Basic Personal Amount?
The Basic Personal Amount (BPA) is a non-refundable tax credit that effectively shelters a portion of income from tax. For 2026, the federal BPA is $16,129 and the Ontario BPA is $12,582. The credit is calculated by multiplying the BPA by the lowest marginal rate in each jurisdiction (15% federal, 5.05% Ontario) and subtracting the result from gross tax owing. It is not a deduction from income — it is a credit against tax.
How does the Ontario surtax work?
The Ontario surtax is an additional provincial tax that applies when Ontario income tax payable (after the Ontario BPA credit) exceeds a threshold. For 2026, a 20% surtax applies to Ontario tax above $5,710, and an additional 36% (total 56%) applies to Ontario tax above $7,307. The surtax is calculated on the Ontario tax amount, not on income directly. It primarily affects Ontario residents with taxable incomes roughly above $100,000.
What is the difference between federal and provincial income tax in Canada?
Federal income tax uses CRA-published brackets and applies to all Canadian residents regardless of province. Provincial income tax is calculated separately using each province's own brackets, rates, and credits. The two are computed independently and then combined to produce total income tax. Ontario residents in 2026 pay federal tax ranging from 15% to 33% and Ontario tax ranging from 5.05% to 13.16%, with Ontario surtax potentially adding more at higher income levels.
Do these calculators apply to Quebec residents?
No. Quebec administers its own provincial income tax system separately from the federal system and uses the Quebec Pension Plan (QPP) instead of CPP. The Ontario provincial brackets, Ontario BPA, Ontario surtax, and CPP rate structure in these calculators do not apply to Quebec employment income. Quebec residents should use QPP-specific and Quebec provincial tax tools.
Why might my actual paycheque differ from the calculator result?
Payroll withholding uses annualized projection methods applied to each pay period, which can diverge from actual annual tax owing. Common sources of difference include mid-year salary changes, bonus withholding at flat rates, additional tax requested on a TD1 form, employer-sponsored benefit deductions, union dues, and pension adjustments. These calculators use standard withholding methodology without individual-specific adjustments. The year-end reconciliation happens on the T1 return.
Are the rates used in these calculators current?
The calculators use rates published by CRA and ESDC for the tax year displayed on each
page. Federal brackets and the BPA are sourced from CRA T4032 payroll deduction tables.
CPP rates and ceilings are published by ESDC. Ontario rates are sourced from the Ontario
Ministry of Finance. The tax year and last-updated date are stored in
js/config.js and surface on each page. If the tax year shown does not
match the year you need, verify the applicable rates directly with CRA.
Do these calculators account for RRSP contributions?
RRSP deductions are not included in the base calculations because contribution room and amounts vary by individual. To estimate the tax impact of an RRSP contribution, enter gross income reduced by the intended RRSP amount and compare the resulting tax estimate to the full-income estimate. The difference represents the approximate tax deferral from that contribution for the year.
What does marginal tax rate mean?
The marginal tax rate is the rate that applies to the next dollar of income earned. Canada's progressive bracket system taxes successive portions of income at increasing rates — lower income is taxed at lower rates, and only the income above each threshold moves to the higher bracket. For 2026, federal marginal rates range from 15% to 33% and Ontario provincial rates range from 5.05% to 13.16%. The effective tax rate — total tax divided by total income — is always lower than the marginal rate.