Personal Tax Planning: Due Diligence Defence to Liability for Unpaid Statutory Remittances

Several potentially onerous liabilities may be imposed on directors outside the provisions of the statute under which their corporation is incorporated or continued. In particular, some of the most common sources of personal liability for directors arise under statutes requiring the corporation to pay employee payroll source deductions (income tax, Canada Pension Plan contributions, and employment insurance premiums), withholding taxes owing by non-residents of Canada, and net goods and services tax and harmonized sales tax remittances. These statutory regimes all have certain features in common, including a statutory due diligence defence.This article examines the state of the law under the objective standard of care first adopted in the tax context by the Federal Court of Appeal in Buckingham . In particular, it examines the principles that guide jurisprudence on the due diligence defence, the factual circumstances that have met with success or failure for appellants, and how the defences apply differently depending on whether a director is an inside or outside director.