No regulator publishes a split, a floor, or a notice period — which means your protection is whatever your own contract with the brokerage actually says.
Short answer
No provincial regulator sets, caps, or protects a commission split between an agent and a brokerage — it is a term of your independent-contractor agreement, negotiated like any other. Whether a brokerage can change it mid-year without your consent depends on what that agreement says about amending its own terms, and a unilateral change to a material term can carry real legal consequences even without a written say-so.
The general principle here is well established for the commission side of a real estate deal, and it applies with equal force to the internal split: there is no standard rate fixed by law or by any regulator for real estate commission — it is negotiated and recorded in the contract. No RECO, RECA, or other provincial source found in this research publishes or regulates what a brokerage pays its agents. Your split lives entirely in the independent-contractor agreement you signed when you joined — not in a public rule you can point a regulator at if a dispute arises.
That doesn't mean a brokerage can rewrite the deal freely. The classification test for independent contractors turns on the whole relationship, not the label on the contract — and a genuinely exclusive, long-term agent relationship can qualify as a “dependent contractor,” a middle category that can be entitled to reasonable notice of termination at common law “even without employee status.” Reasoning from that: unilaterally imposing a material change to your compensation — the kind of change you'd never have agreed to at the outset — is arguably close enough to ending the old agreement and offering a new one that it could trigger the same notice obligation. This is an inference from the dependent-contractor doctrine, not a stated rule specific to commission splits, and it turns heavily on your actual facts.
Before anything else, reread your own independent-contractor agreement's amendment clause — most set out exactly how and when the brokerage can change compensation terms, often tied to a commission split or brokerage cap schedule that resets annually. If your agreement is silent, that silence is a genuine gap worth a paid half-hour with an employment lawyer, not a guess — the stakes are similar to what played out in this misclassification case file.
A 30-minute call is enough to tell you whether your process holds up.
