Director Liability for Unpaid Corporate Taxes: What Business Owners Need to Know
When a corporation fails to remit payroll source deductions, GST/HST, or certain provincial taxes, the directors who were in office at the time can be held personally liable for those amounts. That liability is joint and several, meaning the tax authority can pursue one or all directors for the full debt—not just a proportionate share. The corporate veil does not protect directors from statutory trust obligations.
The risk is real, but it is also manageable. The key is understanding the legal tests the tax authority must meet before assessing a director, and the due diligence defence that can protect you. In this guide, we break down the framework, the conditions for assessment, and practical steps directors can take to reduce their exposure.
Understanding Director Liability for Corporate Tax Debt
Director liability for unpaid corporate taxes arises because certain amounts are deemed to be held in trust for the government from the moment they are deducted or collected. Payroll source deductions, GST/HST collected on sales, and certain provincial levies are not the corporation’s money—they belong to the Crown. When a corporation fails to remit those trust funds, the directors who were in office at the time of the failure can be assessed personally.
The liability is joint and several, which means each director can be pursued for the full amount, plus penalties and interest. It is not limited to the director’s investment or salary. This is why staying informed about remittance status is essential, even for those who are not involved in day-to-day operations.
Legal Framework: Federal and Provincial Legislation
Two main federal statutes create director liability for tax debts: the Income Tax Act and the Excise Tax Act. Under subsection 227.1(1) of the Income Tax Act, directors are jointly and severally liable for unremitted source deductions, including federal income tax, Canada Pension Plan contributions, and Employment Insurance premiums. Under section 323 of the Excise Tax Act, the same liability applies to unremitted GST/HST.
Provincial statutes add another layer. Directors can be held personally liable for unremitted provincial sales tax and carbon tax, depending on the province’s legislation. The test and defences generally mirror the federal framework, but each province has its own limitation periods and due diligence requirements.
Federal Statutes
The federal statutes list specific trust amounts: salary and wage withholdings, CPP and EI premiums, GST/HST collected or collectible, and certain other levies. The liability is not for the corporation’s general income tax debt, but for amounts that the corporation was required to withhold, collect, or remit on behalf of others.
For payroll, the Canada Pension Plan and Employment Insurance Act contain parallel provisions. Directors can be assessed under those acts even if they were not the person who prepared payroll, as long as they were directors at the time of the failure.
Provincial Statutes
Provincial legislation often imposes similar liability for provincial sales tax (PST), carbon tax, and employer health taxes. The exact statutes vary by province, but the principle is consistent: directors who were in office when the corporation failed to remit trust amounts can be personally assessed. Some provinces also impose liability for unpaid wages, adding to the director’s exposure.
Conditions for CRA Assessment of Directors
Before the tax authority can assess a director personally, three strict conditions must be met. The authority must show it cannot collect from the corporation, the assessment must be issued within the limitation period, and the director must have failed to exercise due diligence.
Inability to Collect from the Corporation
The tax authority must first attempt to recover the debt from the corporation itself. This usually means registering a certificate in Federal Court, obtaining a writ of execution, and having that writ returned unsatisfied. Alternatively, the authority can prove a claim in the corporation’s bankruptcy, liquidation, or dissolution proceedings.
This requirement protects directors from being assessed while the corporation still has assets that could satisfy the debt. However, once the corporation is insolvent or has no collectible assets, directors become the target.
Limitation Periods
A director can only be assessed within two years from the date they last ceased to be a director. Resignation starts the clock, but a director who resigns without following proper corporate law procedures may still be considered a director, and the two-year period may not start. It is crucial to document a resignation in writing and ensure the corporate registry is updated.
Directors who are removed by operation of law, such as personal bankruptcy, also trigger the two-year period from that date.
The Due Diligence Defence for Directors
The strongest defence to a director liability assessment is due diligence. A director is not liable if they exercised the care, diligence, and skill that a reasonably prudent person would have exercised in comparable circumstances to prevent the failure to remit.
This is an objective standard, not a subjective one. A director cannot rely on ignorance of the corporation’s affairs or on having delegated responsibilities without oversight. The defence requires active, documented steps to ensure compliance.
What Constitutes Reasonable Care?
- Regular monitoring of payroll remittances and GST/HST filings, not just year-end.
- Establishing separate accounts for source deductions and sales taxes to prevent their use for operating expenses.
- Reviewing financial statements and bank reconciliations that show remittance status.
- Making inquiries when cash flow is tight or when the controller reports missed deadlines.
- Seeking professional advice when in doubt about compliance obligations.
Documentation and Evidence
Courts and the tax authority look for contemporaneous documentation that shows a director was informed and took action. This includes board minutes, email chains, written instructions to staff, and proof that the director demanded confirmation of remittances. A pattern of documented questions and follow-ups is far more persuasive than a general statement that “I trusted my bookkeeper.”
Types of Directors Who Can Be Held Liable
A common misconception is that only active, hands-on directors face personal liability. The law does not distinguish between active, passive, nominee, or outside directors. All are held to the same standard of care.
Active Directors
Active directors who are involved in daily management have the greatest opportunity to know about tax obligations—and the clearest responsibility to ensure remittances are made. Their involvement does not automatically make them liable, but it raises expectations for documented oversight.
Passive and Nominee Directors
Passive directors who never attend meetings or review financials are still personally liable if the corporation fails to remit. Nominee directors, who act on behalf of a shareholder or lender, face the same exposure. The defence of “I had no idea” is not available without evidence of reasonable inquiry.
De Facto Directors
Even individuals who are not legally appointed as directors can be assessed if they perform the functions of a director. Officers, major shareholders, or family members who make key financial decisions may be treated as de facto directors. The test focuses on actual control and decision-making, not the title.
Provincial Tax Obligations: PST and Carbon Tax
Beyond federal source deductions and GST/HST, directors must pay attention to provincial levies. Failure to remit provincial sales tax or carbon tax can trigger director liability under provincial statutes.
Provincial Sales Tax (PST)
Businesses that collect PST on taxable sales hold those amounts in trust for the province. When a corporation fails to remit PST, the provincial tax authority can assess directors personally. The conditions and due diligence defence closely mirror the federal framework, though specific limitation periods may differ.
Carbon Tax
Certain businesses must collect and remit carbon tax on fuel or other specified products. Directors can be personally liable for unremitted carbon tax, including penalties and interest. This liability often surprises directors who focus only on income tax and GST/HST.
Other Provincial Levies
Some provinces also impose director liability for employer health taxes, workers’ compensation premiums, or unpaid wages. Directors should review all provincial remittance obligations that apply to their industry, not just the obvious ones.
Risk Mitigation Strategies for Directors
Directors cannot eliminate the risk entirely, but they can significantly reduce it. The following practices create a record of due diligence and protect against personal assessment.
Ongoing Monitoring and Record-Keeping
Schedule a monthly review of payroll remittances and GST/HST returns. Request confirmation from the controller or bookkeeper that remittances were made on time, and keep those confirmations. If cash flow is tight, ask specifically whether trust amounts have been segregated.
We regularly support directors who are facing CRA assessments for unpaid corporate taxes, helping them gather the documentation needed to demonstrate due diligence. Our team has experience with CRA reviews and audits, and we guide clients through the process with a practical, solutions-focused approach.
Segregating Remittance Funds
Open a separate bank account dedicated to source deductions and sales taxes. Transfer the required amounts from each payroll run or sale into that account immediately. Do not use these funds for general operating expenses. This simple step provides strong evidence that the director took reasonable care.
Proper Resignation Procedures
If you decide to resign as a director, do it in writing and follow the corporation’s governing statute. Ensure the resignation is filed with the corporate registry. Resigning does not absolve liability for failures that occurred while you were a director, but it starts the two-year limitation clock for future assessments.
Conclusion: Proactive Protection for Directors
Director liability for unpaid corporate taxes is a serious risk, but it is not automatic. The tax authority must clear three hurdles, and a director who can show due diligence has a strong defence. The key is to act before a problem arises: monitor remittances, segregate trust funds, document your oversight, and resign properly if necessary.
If you are a director concerned about your exposure, review your corporation’s remittance history now. Ask for proof of the last payroll and GST/HST filings, and put a monthly compliance review in place. The time to build a due diligence record is before the corporation runs into trouble. We can help you assess your specific situation and create a practical compliance routine.
To catch issues early, review the common GST/HST remittance mistakes and fixes that often lead to director assessments.