What is implied consent? (CASL)
The BrokerFold Team — Product + Engineering
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Implied consent is the permission CASL infers from an existing relationship rather than from an explicit yes. It comes in two main real-estate flavours with two different clocks: an inquiry about your services gives you roughly six months, and an existing business relationship — a client who transacted with you — gives you roughly two years from the triggering event. Both expire on their own, which is the property that separates them from express consent and the property agents most often miss. (General information, not legal advice; the CRTC’s CASL guidance is the primary source.)
The two clocks
Six months for an inquiry: someone asked about a listing, filled in your form, requested a valuation. Two years for an existing business relationship: someone bought or sold with you, or contracted your services, measured from the event. During an open window you may send commercial electronic messages — with full identification and a working unsubscribe, the mechanics detailed in can I email leads under CASL — and when the window closes, the permission is simply gone, however warm the relationship felt. Express consent is the contrast: freely given, recorded, and durable until the person withdraws it. One kind of consent is a subscription; the other is a countdown.
What starts each clock in practice
Map your actual lead sources against the categories. A website lead-form submission is the textbook inquiry — six months. A listing question over portal messaging, a market-report request, an open-house sign-in: inquiries. A closed purchase or sale: an existing business relationship, two years from closing. A business card collected at a party starts nothing — proximity is not a relationship in CASL’s taxonomy. And fresh qualifying activity starts fresh windows, so an engaged contact’s permission rolls forward while a silent one’s quietly runs out. The same clocks govern texting, where the stakes of misreading them are covered in texting leads and CASL consent.
Why this is the most misapplied idea in real estate marketing
The standard failure is treating a form fill as a lifetime subscription: the lead enters the database in March, and the database keeps mailing them for years. Every message after the window closes is sent without consent, and the burden of proving consent existed sits with the sender — a position you cannot argue your way out of without records. The second failure is inverted: agents who half-know the rule and stop mailing legitimate contacts far too early, wasting windows they lawfully held. Both failures have the same cure — knowing the category and the date for every contact instead of guessing.
What implied consent never covers
Purchased lists head the list: whatever relationship the list vendor had with those addresses, it is not a relationship with you, and no implied-consent category transfers by invoice. Scraped contacts, harvested addresses, and “everyone in my phone” fail the same way. The full definition of a commercial electronic message and the rest of the statute’s machinery live in the CASL glossary entry; the short version is that if you cannot name the event that created your permission and the date it happened, you do not have permission.
Run the clocks in software, then convert
Implied consent is date arithmetic across hundreds of contacts, and date arithmetic is what computers are for. The workable pattern: a consent record per contact — kind, source, date, expiry — and a send gate that checks it before any automated message leaves, which is how a CASL-aware CRM turns the law into infrastructure. Then use each window for its real purpose: while implied consent is open, earn express consent with an honest ask and an unchecked checkbox. A database where every active contact holds durable, recorded permission is the compounding asset; the timer kind is just how you get there.
Frequently asked questions
Does an open-house sign-in sheet give me implied consent?
Usually as an inquiry — the visitor expressed interest in a property, which starts the shorter clock. It is not a mailing-list subscription. If you want durable permission, put an explicit, unchecked marketing checkbox on the sign-in form and record who ticked it; that converts a six-month window into express consent that lasts.
If a past client emails me a question, does my two-year window restart?
New qualifying activity can start a fresh window — an inquiry starts an inquiry clock, a new transaction starts a new business-relationship clock. That is exactly why the dates need to live in a system: each contact's window rolls forward with their activity, and no one tracks that accurately by hand.
Is implied consent weaker than express consent in what I can send?
The message rules are the same — identification and a working unsubscribe either way. The difference is durability: express consent lasts until withdrawn, implied consent dies on a timer. Treat implied consent as a grace period for earning the express kind, not as a licence to broadcast.
Keep reading
- Can I email leads under CASL? Yes, with consent: express, or implied within CASL's time limits, plus sender ID and a working unsubscribe. What realtors must record, and what to never do.
- Texting leads: consent (CASL) CASL covers SMS. Promotional texts need provable consent, sender identification, and a working STOP — but replying to an inquiry is not marketing.
- CASL CASL is Canada's Anti-Spam Legislation. What consent means for a realtor's email and text follow-up, and how to stay onside while working leads.
- CASL-compliant CRM A CASL-compliant CRM records the consent basis, expiry, and proof behind every contact, and refuses sends it can't justify. How BrokerFold CRM enforces CASL.