Executive Summary: Key Legal and Evidentiary Issues

• Appeal involved a missed deadline in challenging revised tax assessments issued by Revenu Québec.

• The taxpayer mistakenly filed notices of opposition instead of initiating a formal contestation before the court.

• Court evaluated whether the taxpayer met the statutory conditions for an extension of the filing deadline.

• Failure to provide a sworn statement explaining key delays undermined the appellant’s position.

• Argument that the taxpayer did not receive timely notice was unsupported by admissible evidence.

• Appeal was dismissed as having no reasonable chance of success due to factual deficiencies and procedural failures.

Procedural background and dispute over tax assessments

This case concerned Patrick Lam, a taxpayer residing in Hong Kong, and the Agence du revenu du Québec (ARQ), Quebec’s tax authority. Following a tax audit, Mr. Lam received revised notices of assessment from Revenu Québec in late February and early March 2024. Under Quebec’s Loi sur l’administration fiscale, he had 90 days to challenge these decisions by filing a contestation with the Court of Québec. However, instead of pursuing the correct remedy, his Quebec representatives mistakenly filed notices of opposition, which are not appropriate for this stage of the process.

Error and attempt to extend the appeal deadline

Upon realizing the error, ARQ sent a letter dated July 17, 2024, to inform Mr. Lam of the mistake. This letter was sent to his overseas address, and the record did not establish exactly when he received it. The court assumed a two-month delivery time, setting the presumed date of receipt at September 17, 2024. Despite learning of the problem, Mr. Lam did not instruct his lawyers to seek a deadline extension until mid-December. The formal application for extension was only filed on February 3, 2025—just days before the absolute one-year cut-off under article 93.1.13 of the Loi sur l’administration fiscale.

Legal test for extension and court’s analysis

The law permits an extension of the 90-day deadline only where the person was in “impossibilité en fait d’agir” (practically unable to act) and the application is made as soon as circumstances allow. Although the judge accepted that Mr. Lam was initially diligent—having attempted to contest within the 90-day window—he ultimately found that Mr. Lam failed to act promptly after learning of the error. The key weakness in Mr. Lam’s case was the absence of a sworn statement explaining when he actually received the ARQ’s letter and why he delayed from mid-September to mid-December before acting.

Appeal arguments and rejection

On appeal, Mr. Lam argued that the court should have considered the possibility that he never received the ARQ’s July letter or that it may have taken longer than two months to arrive. He also claimed he acted only after being alerted by a property seizure initiated by ARQ. The appellate court rejected these arguments. Without a sworn statement confirming receipt dates or explaining his inaction, there was no evidentiary basis to contradict the lower court’s findings. The Court of Appeal held that the trial judge made no reviewable error and correctly applied the legal test for deadline extensions.

Outcome and conclusion

The Quebec Court of Appeal granted the ARQ’s motion to dismiss the appeal under article 365 of the Code de procédure civile, concluding that the appeal had no reasonable chance of success. Mr. Lam’s failure to meet procedural requirements and provide critical evidence sealed the outcome. The decision reinforces the importance of following proper legal procedures and the evidentiary burden on those seeking exceptional extensions in tax matters.