Vavilov (2019): what it means for a decision to be 'reasonable'

This is a plain-language analysis of a leading, publicly reported decision. It is a matter of public record — not a description of any client of this practice — and it does not predict the outcome of any individual application.

The situation

The case concerned a man whose Canadian citizenship certificate had been cancelled by an official who concluded he was not entitled to it. He challenged that decision in the courts. The Supreme Court used the appeal to address a broader question that reaches across immigration law: how should courts review the decisions of administrative officials?

What the Court decided

In Canada (Minister of Citizenship and Immigration) v Vavilov, 2019 SCC 65, the Supreme Court restated the framework for judicial review:

• Reasonableness is the presumptive standard. When a court reviews most administrative decisions, it generally asks whether the decision is reasonable, not whether the court would have decided the same way.
• A reasonable decision is justified, transparent, and intelligible. It must be justified in relation to the relevant facts and law, and its reasoning must actually hold together.
• Reasons matter. Where a decision-maker gives reasons, those reasons are the starting point. A decision can be unreasonable if the reasoning is flawed or fails to grapple with the key evidence and arguments.

On the facts, the Court found the decision under review did not meet that standard.

Why it matters for immigration

Most immigration decisions — a refused permit, a rejected sponsorship, an H&C decision — are reviewed on the reasonableness standard. Vavilov sharpened what that means in practice: an officer cannot simply reach a conclusion; the reasons must be responsive to the case that was actually put forward.

For an applicant, the practical implication runs in both directions. It is why a strong application makes its key points explicitly and on the record — so that a decision-maker must engage with them — and it is part of why, when a refusal's reasoning is genuinely deficient, judicial review may be worth assessing.