If you deduct Canada Pension Plan (CPP) contributions, Employment Insurance (EI) premiums, or income tax from remuneration or other amounts you pay, you must keep records of:
You also have to keep the following documents:
You must keep all these records so that we can verify or review them, on request.
Businesses that use service bureaus, payroll providers, or similar institutions to handle payroll functions are still responsible for keeping records for the time period specified, generally six years. Payroll records can be kept in either paper or electronic format. We recommend that you keep electronic copies of your records at your business location.