Payroll Earnings and Deductions in Canada
Understand common earnings and deductions on a Canadian paycheque, how each item affects income tax, CPP, and EI, and why payroll classifications must follow the specific CRA rule for that payment.
Last updated August 2026
At a glance
- Earnings are compensation and taxable benefit amounts processed through payroll — such as regular wages, overtime, bonuses, commissions, tips, and taxable benefits. Not every payment to an employee is earnings; a qualifying expense reimbursement may be non-taxable.
- Deductions are amounts withheld from earnings — some are legally required (CPP, EI, income tax), others are voluntary (RRSP, health insurance, union dues).
- Some deductions reduce remuneration used to calculate income-tax withholding; others are taken only from net pay.
- A deduction can affect income tax differently from CPP or EI. “Pre-tax” is not a universal classification across all three calculations.
- Not all earnings are treated the same way for CPP, EI, and income tax — the classification of each earning type determines which deductions apply.
Types of earnings
Payroll earnings include compensation and taxable benefit amounts paid or provided to an employee. Other cash flows, such as a qualifying business-expense reimbursement or an employee loan, are not automatically earnings. Each item must be classified under the applicable CPP, EI, income-tax, and reporting rules so employers can calculate payroll correctly and issue accurate T4 slips at year-end.
Regular earnings
Hourly wages or salary paid for time worked are generally subject to CPP, EI, and income tax. Whether a particular amount is included in vacation pay, public-holiday pay, or overtime-rate calculations depends on the applicable federal, provincial, or territorial employment-standards definition of wages and regular wage.
Overtime
Compensation for hours worked beyond the daily or weekly threshold set by provincial employment standards. Overtime is typically paid at 1.5× the regular rate, and is fully subject to CPP, EI, and income tax. Some provinces require double time after a certain number of overtime hours.
Bonuses and commissions
Bonuses and commissions are generally pensionable, insurable, and taxable employment income. The income-tax method depends on how the amount is paid and the employee's circumstances. A one-time bonus commonly uses the CRA bonus or irregular-payment method, while recurring commission remuneration may use the regular formulas or a TD1X-based method.
Retroactive pay
Back pay for earlier periods is generally employment income and is usually subject to CPP, EI, and income tax using the CRA instructions for bonuses, retroactive pay increases, or irregular amounts. If the payment qualifies as a qualifying retroactive lump-sum payment, the payer also provides Form T1198 so the employee can request a separate special tax calculation when filing their personal return; qualification does not replace the payroll withholding method.
Termination and lump-sum payments
The label “severance” is not enough to determine payroll treatment. A genuine retiring allowance is subject to income-tax withholding but not CPP or EI. Wages in lieu of notice are employment income and are subject to CPP, EI, and income tax. Vacation pay, salary continuation, and damages can each have different treatment, so the payment must be broken down before payroll is calculated or the T4 is prepared.
Taxable benefits
Employer-provided benefits can create taxable employment income—for example, personal use of an employer automobile, employer-paid group term life insurance premiums, or certain employer-paid memberships. Canada does not use the U.S. $50,000 group-term-life coverage threshold. CPP and EI treatment depends on the benefit and whether it is provided in cash or non-cash form. Taxable benefits must be reported using the applicable T4 box and Other Information code.
Expense reimbursements and allowances
A reimbursement supported by business-expense records is often non-taxable. An allowance is non-taxable only when the specific CRA conditions are met—for example, a reasonable per-kilometre motor-vehicle allowance based solely on business kilometres. Flat or unreasonable allowances may be taxable even when they are intended to cover work expenses.
Quick reference: earning types and tax treatment
| Earning type | CPP | EI | Income tax | Typical T4 box |
|---|---|---|---|---|
| Regular wages | Yes | Yes | Yes | Box 14 |
| Overtime | Yes | Yes | Yes | Box 14 |
| Bonus | Generally yes | Generally yes | Yes; commonly CRA bonus/irregular method | Box 14 |
| Commission | Generally yes | Generally yes | Yes; method depends on payment arrangement | Box 14 and often Code 42 |
| Retroactive pay | Generally yes | Generally yes | Yes; method depends on CRA conditions | Box 14 |
| Wages in lieu of notice | Yes | Yes | Yes | Box 14, 24, and 26 as applicable |
| Retiring allowance | No | No | Yes on amount paid directly, subject to transfer rules | Codes 66 and/or 67; not Box 14 |
| Cash taxable benefit | Usually yes | Usually yes | Yes | Box 14 plus the applicable code |
| Non-cash taxable benefit | Often yes | Usually no, with exceptions | Yes | Box 14 plus the applicable code |
| Qualifying non-taxable reimbursement or allowance | No | No | No | Generally not reported as employment income |
This is a general guide. Specific CRA rules determine whether a payment or benefit is pensionable, insurable, taxable, and reportable. Verify the exact item before relying on a classification.
Statutory deductions
CPP or QPP, EI, PPIP where applicable, and income tax are statutory payroll deductions when the employment and payment are subject to those programs. Employers must determine the correct treatment for each payment, withhold the required amounts, add employer contributions, and remit them to the appropriate authority.
Canada Pension Plan (CPP)
Contributions are calculated as a percentage of pensionable earnings between a year's basic exemption and the maximum pensionable earnings (YMPE). Both the employee and employer contribute the same rate. Once the employee reaches the annual maximum in their employment with that employer, CPP deductions stop for the rest of the year.
Employment Insurance (EI)
Premiums are calculated as a percentage of insurable earnings up to the annual maximum insurable earnings. The employer normally pays 1.4× the employee premium. Like CPP, EI deductions stop once the employee reaches the annual maximum in their employment with that employer. An approved premium-reduction rate can change the employer multiple.
Income tax
Federal and provincial or territorial income tax is withheld using the applicable CRA formulas and TD1 information. Only deductions specifically recognized in the formulas or supported by CRA authorization reduce remuneration used for withholding.
Voluntary and other deductions
Employers may also administer pension, RRSP, union-dues, benefit-plan, charitable, loan-repayment, or garnishment deductions. Written authorization, plan documents, collective agreements, court orders, and employment-standards restrictions may all affect whether and how a deduction can be taken.
Income-tax-reducing vs net-pay deductions
Payroll software often labels deductions “pre-tax” or “post-tax,” but Canadian payroll should identify exactly which calculation base is affected:
Amounts that may reduce tax withholding
Certain employee RPP contributions, eligible union dues, and qualifying direct payroll RRSP contributions may reduce remuneration used in the income-tax formula. The exact treatment depends on the plan and CRA rules; it does not automatically reduce CPP or EI.
Verify before configuring:
- Who makes and receives the contribution
- Whether the plan is registered
- Whether funds are remitted directly by the employer
- Whether a CRA authorization is required
Amounts normally deducted from net pay
These deductions are taken after statutory calculations and do not automatically reduce current-period income-tax withholding.
Common examples:
- Employee-paid benefit premiums when no payroll tax reduction applies
- Charitable payroll giving
- Court or government garnishments
- Repayment of salary advances or employee loans
Why the distinction matters
If the CRA formula permits a $100 deduction from remuneration used for income-tax withholding, a $2,000 payment may be taxed using $1,900 as the relevant income-tax base. A $100 net-pay deduction leaves the income-tax base unchanged. CPP and EI must still be calculated using their own pensionable- and insurable-earnings rules.
Garnishments
Wage garnishments are court-ordered or government-ordered deductions requiring the employer to withhold and remit an amount. Payroll systems commonly process them after statutory deductions, but the garnishable-earnings base and protected amount must come from the order and applicable law rather than from a generic “post-tax” setting.
Protected amounts, calculation bases, administrative fees, and priority between multiple orders depend on the issuing law and the wording of each order. Support enforcement, CRA requirements to pay, and provincial court garnishments do not share one universal Canada-wide priority list. Follow the order, applicable legislation, and instructions from the issuing authority; seek legal advice when orders conflict.