By OptiVal Editorial Desk
Most small business owners assume that incorporating protects their personal assets from the company’s debts. That is true for most debts, until it is not. If your corporation falls behind on payroll remittances or GST/HST, the CRA can assess you personally for the full amount, plus penalties and interest. This is called director’s liability in Canada, and it catches owners off guard every single year.
It is not a fringe scenario. Payroll source deductions and GST/HST are treated as trust funds: the money was never the company’s to spend. The CRA takes that view literally.
What director’s liability actually covers
Three provisions create the exposure, and they all point at the same idea: amounts the corporation collected or withheld on the government’s behalf.
Payroll source deductions. Subsection 227.1(1) of the Income Tax Act makes directors jointly and severally liable when the corporation fails to deduct, withhold, or remit employee source deductions (income tax, CPP, EI). The exposure also includes any interest and penalties on those amounts.
GST/HST. Subsection 323(1) of the Excise Tax Act imposes a parallel liability for unremitted net tax. The obligation to remit exists whether or not the corporation ever collected the GST/HST from its customers, so “we never collected it” is not a defence.
CPP and EI specifically. Parallel provisions in the Canada Pension Plan Act and the Employment Insurance Act reinforce the payroll exposure.
One important boundary: ordinary corporate income tax (the T2 balance) is not covered by director’s liability. If the company owes income tax under Part I, that debt generally stays with the corporation. The personal exposure attaches to trust-type amounts, plus related interest and penalties.
The four things the CRA must establish before assessing you
The CRA cannot simply send you a bill because your company owes money. The legislation sets preconditions, and each one is a potential defence.
1. You were a director when the failure happened. Liability attaches to the directors who held office at the time the corporation was required to deduct, withhold, or remit. And “director” is not limited to the name in the minute book: a shareholder who made the calls while the paper director was a figurehead can be treated as a de facto director.
2. The CRA tried to collect from the company first. Under subsection 227.1(2), the CRA must demonstrate it exhausted its remedies against the corporation: it registered a certificate in the Federal Court and the writ was returned unsatisfied, or the company is in liquidation or dissolution with a claim proved within six months, or the company is bankrupt with a claim proved within six months. A personal assessment without this groundwork is vulnerable.
3. The assessment was issued in time. Subsection 227.1(4) bars any proceeding commenced more than two years after the director last ceased to be a director. Resignation, dissolution, or operation of law (for example, personal bankruptcy) starts the clock. This is why a resignation should be written, dated, and properly filed the moment you step away: an undocumented or ineffective resignation leaves the two-year window open indefinitely.
4. Due diligence does not protect you. Subsection 227.1(3) provides the due diligence defence: no liability where the director exercised the care, diligence, and skill that a reasonably prudent person would have exercised in comparable circumstances. The Federal Court of Appeal in Buckingham v. Canada (2011 FCA 142) confirmed the standard is objective. It does not matter that you trusted your bookkeeper. What matters is what a reasonably prudent person would have done: active oversight, proof of filing, and action the moment a shortfall surfaces. Delegating the work is fine. Ignoring it is not.
How this actually unfolds
The process usually starts before the assessment. When the CRA is considering a director’s liability assessment, it typically sends a warning letter giving the individual around 30 days to respond. That letter is the moment to engage, not to file it away. The next step is a Notice of Assessment issued personally against the director, covering the unremitted amount plus interest and penalties.
If you receive one, the objection clock starts ticking: you have 90 days from the date of the Notice of Assessment to file a Notice of Objection. Miss that window and your options narrow sharply. If the objection fails, the matter can go to the Tax Court of Canada.
The defences map directly to the four preconditions above: you were not a director at the relevant time, the two-year period expired, the CRA did not satisfy its collection preconditions, the assessed amount is wrong, the company already paid some of it, or you exercised due diligence. Each is fact-specific, which is why documentation matters: minutes, remittance proofs, resignation letters.
The scenarios that actually trigger assessments
In practice, director’s liability assessments cluster around a few patterns worth recognising.
Cash crunches where payroll got “borrowed.” The most common trigger. Revenue dips, the owner covers payroll from the operating line, but the source deductions withheld from paycheques never reach the CRA. The withheld money was the employees’ tax and CPP/EI, not the company’s cash. Our payroll penalties guide shows what late remittances cost before they ever reach director’s liability. Using withheld funds to bridge a shortfall is exactly what these liability provisions were built for.
GST/HST collected but spent. The GST/HST a business collects sits in the till and feels like working capital, especially in a fast-growing company. It is not. A single missed quarter compounds quickly once penalties and interest attach.
Paper directors and family members. Spouses or relatives listed as directors “for the minutes” are fully exposed. The CRA does not discount nominal directors, and the de facto rule cuts the other way: the person actually running things cannot hide behind a figurehead.
Resignations on paper only. The owner resigns from a failing company but keeps signing, keeps deciding, keeps the title on the bank mandate. The CRA looks at who was in charge during the failure period, not just the corporate registry.
What prudent directors do
The due diligence defence is won with habits, not heroics after the fact. Every month, confirm that source deductions and GST/HST were actually remitted, not just recorded. Keep the proof: CRA confirmation numbers, remittance receipts, and the bank records showing the money left. If a shortfall happens, act immediately, document the correction, and minute the decision. Address resignations in writing with a clear effective date and file the update with the corporate registry. And keep a clean file of your year-end position: reviewed books make every defence easier.
Led by qualified professionals with more than 75 years of combined experience, PwC-trained, who have worked at world-leading multinationals in CFO-level positions, our team handles payroll compliance and bookkeeping for Canadian corporations so directors are never left exposed by a missed remittance they never saw.
Book a free consultation if you want a second set of eyes on your payroll setup. Our published pricing: payroll starts at $29 per employee per month plus a $149 setup, bookkeeping from $199 per month, and cleanup of messy books at $45 per hour (CAD, HST extra). It is a fraction of what a personal assessment costs.
