No bulletin uses the words “showing feedback” — the answer comes from the general duty underneath it, and that duty points toward telling the seller.
Short answer
There’s no bulletin that names “showing feedback” specifically, so this is drawn from your general duties rather than a named rule. CREA’s REALTOR® Code Article 3.1 requires you to “fully disclose… any information that relates to the transaction,” and RECO’s Bulletin 1.1 ties your best-interests duty to actually helping the client understand what information means for their decisions — not just handing it over. Consistent negative feedback that affects pricing or marketing strategy falls inside both.
CREA’s Article 3 (Primary Duty to Client) states a REALTOR® “shall protect and promote the interests of his or her Client,” and 3.1 requires full disclosure “at the earliest opportunity” of “any information that relates to the transaction.” Article 3.9 explicitly frames this as part of “fiduciary duties to a Client.” RECO’s Bulletin 1.1, describing the same obligation for Ontario registrants, says an agent “has an obligation to promote and protect the best interests of their client,” and that “when it is personal real estate, it is about a ‘home,’ something more than just a property or real estate asset” — language that leans toward keeping a seller genuinely informed, not managing what they hear.
Neither source hands you a script for how or how often to relay feedback — a single offhand comment from one showing is different from a pattern across ten showings that consistently points to price or condition. The RECO Information Guide describes “arranging showings for interested buyers” as a core listing service, which implies reporting on how those showings went is part of the same job, but it stops short of a specific feedback-reporting rule. The safer practice, given the disclosure duty above, is to summarize patterns honestly and regularly rather than filtering out what’s uncomfortable to say.
See also: describing a neighbourhood to a client and what a coming soon post can say.
A 30-minute call is enough to build a feedback-reporting cadence that keeps sellers genuinely informed.