When does a mortgage file actually become a reportable transaction?

Four report types apply to the mortgage sector, and they split into three very different logics:

• →Threshold-triggered: Large Cash Transaction Reports and Large Virtual Currency Transaction Reports, both at $10,000 or more in a single transaction.
• →Suspicion-triggered: Suspicious Transaction Reports, with no dollar minimum at all — the standard is “reasonable grounds to suspect,” not a transaction size.
• →Status-triggered: Listed Person or Entity Property Reports and Sanctions Evasion Reports, tied to who the parties are rather than what the transaction is worth.

Most files never touch the first or third category. The second — suspicion-triggered reporting — is the one every broker needs to actually understand, because it can apply to any file, at any dollar value, at any point in the relationship.

A Large Cash Transaction Report is required when your brokerage receives $10,000 or more in cash in a single transaction; a Large Virtual Currency Transaction Report applies at the same $10,000 threshold for virtual currency. A 24-hour rule also combines multiple smaller transactions from the same client into a single reportable event if they add up to $10,000 or more within that window — a rule aimed squarely at deliberate structuring.

In most Canadian mortgage transactions, funds flow through a lawyer or notary's trust account rather than through the brokerage directly, which is why this report type comes up less often for brokers than for lenders or administrators. It's not irrelevant, though — a broker who personally receives a large cash deposit or fee needs to know the threshold applies regardless of role.

The threshold is “reasonable grounds to suspect” that a transaction is related to money laundering, terrorist financing, or sanctions evasion — per FINTRAC's reporting guidance, this is deliberately a lower bar than “reasonable grounds to believe.” You don't need to prove an offence occurred — only that a possibility exists based on the facts, context, and indicators in front of you.

Two details matter in practice. First, there is no dollar minimum — a $2,000 deposit with a genuinely suspicious explanation can trigger the same obligation as a $2 million one. Second, the filing standard is a holistic judgment call: a single red flag in isolation might not be enough on its own, but it should prompt a closer look, and it's often the combination of several indicators together that gets you to reasonable grounds. Reports must be filed “as soon as practicable” once that threshold is met — treat it as a priority, not a next-quarter task.

The tipping-off rule matters just as much as the filing rule: you cannot tell the client — or anyone else — that you have filed or intend to file an STR, if doing so would prejudice a possible investigation. Practically, that means resisting the urge to ask a client pointed questions that would signal your suspicion.

FINTRAC publishes sector-specific indicators, but the categories that come up most often in a mortgage context are worth knowing in plain terms:

• →A pattern of deposits structured to stay just under a reporting threshold, rather than one clean deposit.
• →Source-of-funds documentation that doesn't line up with the client's stated income, occupation, or explanation.
• →Third-party funding with no clear relationship to the borrower, or a “gift” that doesn't behave like one on paper.
• →Unusual urgency combined with reluctance to provide standard identification or documentation.
• →A property or transaction structure that makes little economic sense for the stated purpose.

None of these individually proves anything — plenty of legitimate files have one unusual detail. The judgment call is about the pattern, not any single item on the list.

A Listed Person or Entity Property Report applies when you have property in your possession or control that belongs to a person or entity on a terrorism-related listing — this must be filed immediately, not “as soon as practicable.” A Sanctions Evasion Report applies when you have reasonable grounds to suspect a transaction relates to evading Canadian sanctions. Both are tied to who the parties are or what the transaction is trying to accomplish, not to a dollar figure.

Escalate internally — to your compliance officer or Principal Broker — rather than deciding alone. Document your reasoning in the file at the time you notice it, whether or not the file ultimately gets reported, since a documented-and-cleared concern is very different from an undocumented one raised only after the fact.

Declining the deal doesn't remove a reporting obligation if the threshold has already been met on information you already have. The obligation runs to what you knew and when, not to whether the deal closed. For the record-keeping side of this — how long to keep the documentation that supports a report or a cleared concern — see our companion piece on record retention.