Key takeaways
- →This is a composite, illustrative scenario for teaching purposes — not a real Treadstone client file.
- →A collateral charge is registered for an amount that can exceed what's actually owed, to allow future re-advances — and that registration structure is why it usually can't move to a new lender the way a standard charge can.
- →Most straightforward switch processes are built around standard charges; a collateral charge more often has to be discharged and re-registered, closer to a refinance in cost and process.
- →Identifying the charge type early — before promising a client a free, same-day switch — prevents a much more awkward conversation later in the file.
This is an illustrative, composite scenario — not a real client file — built to show how a switch that looks routine on the surface can turn out to be something closer to a full refinance, depending entirely on how the existing mortgage is legally registered.
Say a borrower's mortgage is coming up for renewal, and a new lender is offering a noticeably better rate. The borrower assumes, reasonably, that switching is quick and essentially free — and for most standard mortgages, it would be. This one wasn't standard.
01 · What did the borrower expect the switch to look like?
A same-day, low-cost transfer: sign new paperwork with the new lender, the old mortgage moves over, done — the process most borrowers picture when they hear the word “switch,” and the process that does apply to a large share of standard mortgage switches in Canada.
What the borrower didn't know, and had no obvious reason to know, was how their existing mortgage was actually registered on title.
02 · Why did the collateral charge change everything?
The existing mortgage was registered as a collateral charge, originally set up with a readvanceable line of credit component. A collateral charge is registered against the property for an amount that can be higher than what's currently owed, specifically so the borrower can re-borrow later without a new registration — a structure OSFI has specifically addressed guidance around, given how differently these products behave from a standard mortgage charge.
Because of that registration structure, the new lender couldn't simply step into the old lender's position the way it could with a standard charge. It had to treat the transaction more like a refinance: discharge the existing collateral charge, then register its own new charge, with the legal work that involves.
03 · How was this handled once it was discovered?
The broker caught the charge type at the discovery stage, before quoting the borrower a timeline or a cost, simply by pulling the existing mortgage registration details rather than assuming from the mortgage statement alone.
From there, it was a matter of resetting expectations honestly: the switch would take longer than a standard transfer, and it would involve legal fees the borrower hadn't budgeted for, since the “lender covers the switch costs” offer many switches come with is typically built around standard-charge transfers, not this kind of discharge-and-reregister process.
Know the charge type before you quote the switch
A collateral charge changes the whole process — catch it early.
Treadstone's fulfillment associates confirm charge type and registration details at intake, before a client is quoted a timeline or cost that a collateral charge would immediately break.
04 · How did the file eventually close?
With a lawyer engaged earlier than a standard switch would have required, the existing collateral charge was discharged and the new lender registered its own standard charge in its place. The borrower still got the better rate they were after — just not for free, and not on the same-day timeline they'd originally pictured.
Because the numbers changed once the real cost and timeline were known, the borrower had a fair chance to decide whether the new rate still made sense given the added legal cost — a decision they couldn't have made properly without the charge type being identified up front.
05 · What's the lesson for renewal season generally?
“Switch” and “refinance” aren't just different words for the same thing — they can mean genuinely different legal processes with different costs, and which one applies depends on how the existing mortgage happens to be registered, not on what the borrower or even the new lender initially assumes.
Our companion piece on collateral charge vs. standard charge covers this distinction in full; the practical habit this file reinforces is simple — confirm the charge type before quoting a switch timeline, every time, not just when something looks unusual.
Frequently asked questions
This article is general information to help you scale — not a substitute for tailored advice on your specific business, licensing, or compliance obligations. All figures are illustrative examples for planning purposes; actual costs vary by province, market, and brokerage.