An employer is required by law to make deductions from employee wages, for example:

• Income tax
• Employment Insurance premiums (EI)
• Canada Pension Plan contributions (CPP)
• A court order to garnish wages

If an employee agrees in writing, other wage deductions can also include:

• Medical premiums
• Repayment of payroll advances or purchases made from an employer
• Accidental overpayments

It's illegal to make employees pay for business expenses, even if they agree to it. This includes deducting expenses because company property was stolen or damaged, or a customer left without paying.