The client
A homeowner in the Timmins market had a mortgage maturing with a lender who had registered it, years earlier, as a collateral charge rather than a standard charge — common practice at many lenders, and invisible to the borrower until renewal time, when it changes what a switch actually requires. Renewal activity nationally, tracked in the Canadian mortgage renewal statistics, shows just how many files hit exactly this kind of registration surprise at maturity.
Mortgage balance at maturity
$214,000
21 years remaining amortization
Current lender's renewal rate
5.89%
No new registration required to stay
New lender's switch offer
5.19%
Requires full discharge and re-registration
Applicant income
$6,200/month
Used in the qualification check below
Existing debt
$380/month auto loan
Carried into the TDS check
The two paths at maturity, before the registration question is factored in:
| Path | Rate | Monthly payment |
|---|---|---|
| Stay: renew with the current lender | 5.89% | $1,473 |
| Move: switch to the new lender | 5.19% | $1,389 |
The problem
The lower rate looked like an easy decision until the registration type surfaced. A stress-test exemption for uninsured straight switches exists precisely so a borrower moving lenders at renewal — same balance, same amortization — does not have to requalify at the minimum qualifying rate. But that exemption is written for a mortgage that can actually transfer as a straight switch.
Why the exemption did not apply here
- ▸A collateral charge is often registered above the original principal and cannot simply transfer between lenders the way a standard charge can
- ▸Moving lenders required a full discharge of the existing charge and a new registration — mechanically a new mortgage, not a transfer
- ▸Because the loan does not simply transfer, the new lender applied the full minimum qualifying rate of 7.19%, not the 5.19% contract rate
The client's first reaction was that the lower rate should be simple to access. It was not — the collateral charge added both a discharge cost and a full re-qualification step that a standard-charge switch would have skipped entirely.
The numbers
The qualification test runs on the minimum qualifying rate, computed from the new lender's actual offer.
| Qualifying at the minimum rate | Amount |
|---|---|
| New lender's contract rate | 5.19% |
| Minimum qualifying rate — greater of contract + 2% and 5.25% | 7.19% |
| Monthly P&I at the qualifying rate — the ratios run on this | $1,634 |
| Monthly P&I at the contract rate — what is actually paid | $1,389 |
| TDS at the qualifying rate | Monthly |
|---|---|
| P&I at 7.19% | $1,634 |
| Property tax | $300 |
| Heat (lender-standard estimate) | $130 |
| Auto loan | $380 |
| TDS: $2,444 ÷ $6,200 income | 39.4% |
The cost-benefit of moving anyway
| Comparison | Amount |
|---|---|
| Monthly savings (stay $1,473 vs. move $1,389) | $84/mo |
| Savings over the 5-year term | $5,040 |
| Less: discharge and re-registration cost | −$1,750 |
| Net savings over the term | $3,290 |
Even with a full re-qualification step at 7.19% and a $1,750 discharge cost that a standard-charge switch would not have needed, the borrower still qualified comfortably at 39.4% TDS and came out $3,290 ahead over the term.
The solution
An FSRA-licensed Ontario mortgage agent explained the mechanics before the client committed to either path, walking through why a collateral charge changes the math — a distinction covered in detail in our walkthrough of switching a collateral-charge mortgage.
With the re-qualification requirement confirmed up front, the submission was built to clear the minimum qualifying rate with margin, not just the actual payment:
The client ultimately chose to move despite the extra cost and paperwork, once the net savings over the term were laid out clearly against the alternative of simply renewing.
The outcome
Approved and funded: $214,000 switched to the new lender at 5.19%, discharge and re-registration completed before maturity, qualifying at 39.4% TDS at the 7.19% minimum qualifying rate.
Because this was a mortgage registration, not a purchase, no land transfer tax applies. The $1,750 discharge and registration cost was the only closing-style expense, paid from savings rather than added to the loan.
What to take from this file
- 01A collateral charge is not a straight switch, no matter how similar the numbers look. The exemption for uninsured straight switches depends on the mortgage being able to transfer without a new registration — a collateral charge usually cannot.
- 02Confirm the registration type before promising a client an easy switch. The rate difference was real, but the mechanics behind accessing it were not what either side expected at first.
- 03Full re-qualification at the minimum qualifying rate does not mean the move fails. This file cleared 39.4% TDS at 7.19% with real margin to spare.
- 04Run the net-of-costs math, not just the rate comparison. A $1,750 discharge cost still left $3,290 in net savings over the term once the full picture was laid out.
Sources
Every regulatory figure in this file traces to one of these primary sources. Client details and anything that varies by lender are illustrative, as flagged below.
- ▸OSFI — OSFI exempts uninsured mortgage straight switches from the prescribed MQR and implements portfolio LTI limits — MQR exemption for uninsured straight switches at renewal (from Nov 21, 2024).
- ▸OSFI — Minimum qualifying rate for uninsured mortgages — the minimum qualifying rate — greater of contract rate + 2% or 5.25%.
- ▸Provincial/territorial mortgage-broker legislation fetched directly (bclaws.gov.bc.ca, legisquebec.gouv.qc.ca, fcaa.gov.sk.ca, web2.gov.mb.ca, nslegislature.ca, assembly.nl.ca) plus FCNB's own site for NB and CanLII's index for PE — see notes for per-province method — provincial mortgage regulators and licence titles.
Illustrative in this file — lender-specific, not rules:
- ▸5.89% / 5.19% rates — rates move daily; not quotes.
- ▸$1,750 discharge/registration cost — legal and registration fees vary by lender and by lawyer.
- ▸$300/mo tax and $130/mo heat estimates — lender-standard estimates, not rules.
Authority & provenance
How this case file was built
We publish the origin, the verification method and the reviewer for every case file, so you can judge how far to trust it before you rely on it with a client.
Where it comes from
Derived from files handled by Treadstone’s fulfillment desk and from scenarios contributed by partner brokerages. Names, employers, exact amounts and dates are changed so no client or file is identifiable.
Provenance: Composite — a pattern seen repeatedly on fulfilled files, not a single transaction.
What is verified
Every regulatory figure traces to a primary source listed above and was checked against it on the date shown. The arithmetic is recomputed by machine on every rebuild.
Anything that varies by lender is labelled illustrative rather than stated as a rule.
Who reviewed it
Reviewed for Canadian regulatory accuracy before publication, and re-checked whenever a cited rule changes.
Reviewed by: Nicholas Parson, Treadstone Associates — reviews every case file before publication.
This case file is professional reference material for licensed mortgage professionals. It is not advice to a borrower, and it is not a lender commitment. Insurer rules, qualifying rates and provincial taxes change — confirm the current position with the insurer, regulator or lender before you rely on any figure here in a live file.