Payroll Source Deductions and Trust-Fund Disputes

Payroll source deductions occupy a unique place in Canadian tax law. The amounts an employer withholds from employees' wages — income tax, Canada Pension Plan (CPP) contributions, and Employment Insurance (EI) premiums — never truly belong to the employer. They are the employees' money, deducted on the government's behalf and held for the Crown. Because of this, the Income Tax Act surrounds unremitted source deductions with some of the strongest collection tools the Canada Revenue Agency (CRA) possesses: a deemed trust, graduated penalties, and the ability to reach behind the corporation to assess directors personally.

For a business under cash-flow pressure, payroll remittances can feel like a flexible source of short-term financing. They are not. Falling behind on source deductions exposes the company to compounding penalties and interest, and it puts the people who run the company at personal risk. This page explains how these obligations work, how CRA assesses and collects on them, and how source-deduction and trust-fund disputes are resolved. It is general information about Canadian federal tax law, not legal advice for any particular situation.

The duty to withhold and remit

The starting point is subsection 153(1) of the Income Tax Act, which requires a person who pays salary, wages, or other remuneration to deduct or withhold the prescribed amount of income tax and remit it to the Receiver General. Parallel obligations arise under the Canada Pension Plan and the Employment Insurance Act, which require the employer to withhold the employee's share of CPP contributions and EI premiums — and, separately, to pay the employer's own matching share.

An employer must determine the correct amount to withhold, remit it by the applicable deadline (which depends on the size of the payroll and the assigned remitter type), and report the amounts on a T4 information return after year-end. The obligation is strict. It does not turn on whether the business was profitable, whether the employer intended to pay later, or whether the funds were temporarily diverted to keep the doors open. Once remuneration is paid and amounts are withheld, the duty to remit those amounts is fixed.

Disputes in this area often begin with a disagreement about whether amounts should have been withheld at all — for example, where CRA recharacterizes a contractor as an employee, or treats a shareholder benefit, bonus, or other payment as remuneration. Those threshold questions can be as important as the arithmetic, and they frequently overlap with CPP and EI ruling disputes about a worker's status.

The deemed trust for withheld amounts

What makes source deductions different from an ordinary tax debt is the deemed trust. Under subsection 227(4) of the Income Tax Act, amounts deducted or withheld are deemed to be held in trust for the Crown, separate and apart from the employer's own property. The employer is, in effect, a trustee of the employees' money.

Subsection 227(4.1) goes further. Where the employer fails to remit, the Crown's deemed trust is enhanced: property of the employer (and proceeds of that property) up to the unremitted amount is deemed to be held in trust and to be beneficially owned by the Crown, and this claim is given priority over the security interests of most other creditors. This “super-priority” can reach property that has already passed to a secured lender. The practical consequences are significant in insolvency and in any situation where competing creditors are pursuing the same assets — the unremitted source-deduction trust generally ranks ahead of them.

Because of the deemed trust, source-deduction arrears are treated by CRA as trust-fund debt rather than ordinary debt. CRA collections officers tend to pursue these accounts aggressively, and the existence of the trust shapes everything from the timing of collection action to how the debt is treated if the company restructures or becomes insolvent. If CRA registers a claim or moves against company assets, our discussion of CRA liens and asset seizure explains the mechanics in more detail.

Failure-to-remit penalties under subsection 227(9)

When an employer remits late or fails to remit, subsection 227(9) imposes a penalty on the amount that was not remitted on time. The penalty is graduated according to how late the remittance is. For amounts remitted after the due date, the penalty rises in steps — a lower percentage for remittances that are only a few days late, increasing to ten percent for the most delayed remittances.

The penalty can climb higher for repeated non-compliance. Where an employer has already been assessed a failure-to-remit penalty in the same calendar year and the later failure was made knowingly or in circumstances amounting to gross negligence, the penalty on the subsequent failure can rise to twenty percent of the unremitted amount. Beyond the penalty itself, arrears interest accrues on both the unremitted source deductions and the penalty, compounding daily.

These amounts add up quickly, and the assessment is often issued without much warning. A penalty assessment is not the last word, however. The percentage applied, the period CRA used, the characterization of the failure as “repeated” or grossly negligent, and the underlying calculation of what was owed can all be examined and, where the facts support it, disputed. Where the penalty is framed as gross negligence rather than ordinary lateness, the analysis overlaps with the issues we address on our page about gross-negligence penalties.

Director liability under section 227.1

If the corporation does not pay, CRA can look to the people who controlled it. Section 227.1 of the Income Tax Act makes the directors of a corporation jointly and severally liable, together with the corporation, for amounts the corporation failed to deduct, withhold, or remit — along with the related interest and penalties. A comparable rule under the Excise Tax Act applies to unremitted GST/HST net tax.

Director liability is not automatic. The Act builds in important limits. First, CRA must generally have taken certain steps to collect from the corporation itself — such as registering and having a writ or certificate returned unsatisfied, or proving a claim in a bankruptcy or dissolution — before a director can be assessed. Second, subsection 227.1(4) imposes a two-year limitation period: a director is not liable unless they are assessed within two years after they last ceased to be a director of the corporation. A valid, properly documented resignation can therefore start a clock that, if CRA misses it, defeats the assessment entirely.

Third, and most important, subsection 227.1(3) provides a due-diligence defence. A director is not liable if they exercised the degree of care, diligence, and skill to prevent the failure that a reasonably prudent person would have exercised in comparable circumstances. The standard is objective, but it is assessed in the context of the particular director's situation. The defence focuses on what the director did to prevent the failure to remit — not on efforts to cure it after the fact. The contemporaneous record matters enormously here: board minutes, instructions to management, monitoring of the remittance account, and the steps taken when problems first appeared. We treat the analysis of these defences in depth on our director's liability page.

PIER assessments and worker classification

A different kind of dispute arises from the Pensionable and Insurable Earnings Review, or PIER. After T4 information returns are filed, CRA cross-checks the CPP contributions and EI premiums reported against what should have been withheld based on the pensionable and insurable earnings shown on the slips. Where the system detects a shortfall — for example, where the deducted contributions do not match the reported earnings — CRA issues a PIER assessment for the difference.

Because the employer is responsible for both the employee's share and its own matching share of CPP and EI, a PIER discrepancy can produce an assessment for both halves, plus penalties and interest. Many PIER assessments stem from honest mechanical errors: a mid-year change in a contribution rate or maximum, an employee who turned eighteen or sixty-five during the year, prorated maximums for part-year employment, or a payroll software setting that was never updated. Others reflect deeper disagreements about whether a payment was insurable or pensionable in the first place.

PIER assessments are reviewable. Where the discrepancy results from a calculation issue or a coding error, it can often be corrected by supplying the underlying payroll records and reconciling the slips. Where the real issue is whether a worker was an employee or an independent contractor, or whether particular earnings were pensionable or insurable, the matter may proceed as a formal CPP/EI ruling and appeal under the dedicated rules in the CPP and EI legislation rather than the ordinary income-tax objection process.

Defences and how these assessments are disputed

How a source-deduction or trust-fund dispute is challenged depends on what, exactly, has been assessed. There is no single path, and several may run in parallel.

• The threshold question — was there an obligation at all? If CRA recharacterized contractors as employees, reclassified a payment as remuneration, or misidentified who the true employer was, defeating that premise can eliminate the assessment. Worker-status issues often proceed through the CPP/EI ruling and appeal route.
• The quantum. The amount CRA says was unremitted, the period it covers, and the way payments were applied against the account can all contain errors. Reconciling CRA's ledger against the employer's own remittance records frequently narrows or eliminates the balance.
• The penalty characterization. Whether the failure was truly “repeated” within the year, whether it was knowing or grossly negligent, and which percentage tier of subsection 227(9) applies are all open to challenge on the facts.
• The director's position. For an assessment under section 227.1, the available arguments include the two-year limitation period, whether the prerequisite collection steps against the corporation were properly completed, and the due-diligence defence.

For income-tax source-deduction and penalty assessments, the formal dispute mechanism is a Notice of Objection, followed if necessary by an appeal to the Tax Court of Canada. Strict deadlines apply, and missing them can forfeit the right to dispute. Our pages on tax disputes and objections and the Tax Court of Canada describe those procedures. Where arrears are real and the goal is to manage collection rather than contest the amount, a structured approach to tax arrears negotiation may be the more productive route, sometimes combined with a request for relief from penalties and interest.

Why source-deduction disputes demand early attention

Two features make these disputes time-sensitive. The first is the deemed trust, which gives CRA collection priority and a reason to act quickly against company assets. The second is the two-year clock on director liability, which can run in either direction: it can protect a former director who resigned cleanly, but it can also catch a sitting director who assumes the matter is the corporation's problem alone. Decisions made in the first weeks — how to respond to a proposal letter, whether and how to resign, what records to preserve, whether to object — often shape the entire dispute.

It is also worth distinguishing between contesting an assessment and managing arrears. If the assessment is wrong, the answer is to dispute it through the objection and appeal process. If the underlying remittances were genuinely missed, the focus shifts to limiting penalties and interest, regularizing future remittances, and arranging payment in a way that keeps the business viable. Many real files involve a blend of both, and the strategy has to account for the corporation and any exposed directors at the same time.

How Barrett Tax Law approaches this

Barrett Tax Law represents corporations and directors across Canada in payroll source-deduction and trust-fund matters. We begin by separating the strands of the problem: what CRA has actually assessed, on what statutory basis, against which parties, and within which deadlines. From there we reconcile CRA's figures against the employer's payroll and remittance records, assess the penalty characterization under subsection 227(9), and evaluate any director's exposure under section 227.1 — including the limitation period and the due-diligence defence.

Depending on the situation, that work may involve correcting a PIER assessment with supporting records, pursuing a worker-classification ruling, filing a Notice of Objection, appealing to the Tax Court of Canada, negotiating the management of arrears, or applying for relief from penalties and interest where the circumstances justify it. We coordinate the corporate and personal sides of a file so that steps taken for one do not undermine the other.

If you have received a source-deduction or trust-fund assessment, a PIER notice, a remittance penalty, or a director-liability proposal, you are welcome to contact us for a free, confidential consultation to discuss your circumstances and the options available to you.