Revenue Canada Ontario Payroll Calculator

This Revenue Canada Ontario Payroll Calculator helps employers determine the payroll deductions for income tax, Canada Pension Plan (CPP), Employment Insurance (EI), and other contributions based on the latest Ontario tax rates and thresholds.

How the Ontario Payroll Calculator Works

The Ontario payroll calculator computes the total payroll deductions for each employee based on their gross earnings. The key components calculated are:

Income Tax - Calculated based on Ontario's progressive tax rates
Canada Pension Plan (CPP) - 5.1% of earnings up to the CPP maximum contribution base
Employment Insurance (EI) - 1.66% of earnings up to the EI maximum insurable earnings
Workplace Safety and Insurance Board (WSIB) - Premiums based on the employee's classification

The calculator provides a breakdown of each deduction and the net pay that should be remitted to the employee.

Important Notes

This calculator provides estimates based on current tax rates. For exact calculations, always consult Revenue Canada's official payroll deductions tables or consult with a tax professional.

Ontario tax rates and thresholds are subject to change. The most recent rates should be verified before final payroll processing.

Formula Used

The Ontario payroll deductions are calculated using the following formulas:

Income Tax Calculation

Ontario uses a progressive tax system with brackets. The formula is:

Income Tax = Sum of (Taxable Income × Tax Rate for each bracket)

Where taxable income is calculated as:

Taxable Income = Gross Earnings - Deductions (e.g., CPP, EI)

Canada Pension Plan (CPP)

CPP = Gross Earnings × 0.051 (5.1%)

Maximum contribution base applies (currently $65,900 for 2023)

Employment Insurance (EI)

EI = Gross Earnings × 0.0166 (1.66%)

Maximum insurable earnings applies (currently $61,800 for 2023)

Total Deductions

Total Deductions = Income Tax + CPP + EI + WSIB Premiums

Net Pay = Gross Earnings - Total Deductions

Worked Example

Let's calculate the payroll deductions for an employee with a gross salary of $50,000 in 2023.

Deduction	Calculation	Amount
Canada Pension Plan (CPP)	$50,000 × 5.1%	$2,550.00
Employment Insurance (EI)	$50,000 × 1.66%	$830.00
Income Tax	Based on Ontario tax brackets	$8,250.00
WSIB Premiums	Based on employee classification	$1,200.00
Total Deductions		$12,830.00
Net Pay	$50,000 - $12,830	$37,170.00

This example shows that for a $50,000 salary, the total payroll deductions would be $12,830, leaving the employee with a net pay of $37,170.

Frequently Asked Questions

What is included in Ontario payroll deductions?: Ontario payroll deductions typically include income tax, Canada Pension Plan (CPP), Employment Insurance (EI), and Workplace Safety and Insurance Board (WSIB) premiums.
How often should payroll deductions be calculated?: Payroll deductions should be calculated for each pay period. The frequency depends on your pay schedule (weekly, bi-weekly, semi-monthly, monthly).
Are there any exemptions or deductions from payroll taxes?: Some employees may qualify for exemptions or deductions from certain payroll taxes. These should be reviewed on a case-by-case basis with tax professionals.
How do I verify the accuracy of the calculator results?: The calculator provides estimates based on current tax rates. For exact calculations, always consult Revenue Canada's official payroll deductions tables or consult with a tax professional.
What happens if I don't deduct the correct amount from payroll?: Under-deduction can result in penalties and interest from Revenue Canada. Over-deduction may require refunds to employees. It's important to use accurate calculations and verify with tax authorities.