The client
A household in Gatineau moved apartments a year before their $268,000 mortgage matured, and never updated their mailing address with the lender. The renewal notice went to the old address; nobody at the new one ever saw it.
Balance at maturity
$268,000
Posted rate applied
6.49%
Auto-renewed with no instructions received
Switch rate, once caught
4.65%
Available via an immediate straight switch
Other debt
$260/mo car loan
The problem
A posted rate is not a punishment -- it's simply what a lender charges by default when a renewing borrower gives no other instructions. It becomes a real cost the moment nobody actually chose it on purpose.
How four months went by unnoticed
- ▸The renewal notice was mailed to an address the household had moved out of a year earlier
- ▸With no response received, the mortgage auto-renewed onto the lender's 6.49% posted rate, as its default policy allows
- ▸The household kept paying the new, higher amount without noticing -- the payment increase wasn't dramatic enough, on its own, to raise an immediate flag
Nothing about the household's own finances had changed. The mortgage simply renewed onto a rate nobody had actually agreed to, because the one document that would have prompted a different choice never reached them.
The numbers
Once caught, the fix wasn't complicated -- the mortgage was already past its own maturity date, with the balance and amortization unchanged, which is exactly what an exempt straight switch requires.
| The cost of four months at the posted rate | Amount |
|---|---|
| Payment at the 6.49% posted rate | $1,794/mo |
| Payment at the 4.65% switch rate | $1,506/mo |
| Monthly overpayment | $288 |
| Total overpaid across 4 undetected months | $1,152 |
| After the switch | Figure |
|---|---|
| Payment at the actual 4.65% contract rate | $1,506/mo |
| Property tax and heat | $435 |
| Total debt service (car loan included) | 27.9% |
Because the switch happened after the mortgage's own maturity date, with no increase to the balance or amortization, it qualified for OSFI's straight-switch exemption -- the household requalified on the actual 4.65% payment, not the minimum qualifying rate.
The solution
A courtier hypothécaire licensed under Quebec's Act respecting the distribution of financial products and services treated the stale address as the root cause, not just the higher payment as a rate problem to shop.
First, confirmed the renewal notice's mailing history with the lender. Verified it had been sent, and to which address, establishing exactly how the household never saw it.
Second, quantified the overpayment already incurred. Four months at $288/mo more than necessary -- $1,152 -- gave the household a concrete number for what the missed notice had already cost.
Third, executed an immediate straight switch to a new lender at 4.65%. With the balance and amortization unchanged and the mortgage already past maturity, the switch qualified for the exemption from the minimum qualifying rate.
The outcome
The switch closed at 4.65%, ending the posted-rate overpayment immediately, with total debt service settling at 27.9% -- a smoother outcome than most Canadian mortgage renewal statistics would suggest for a file that sat undetected for months -- and the household's mailing address corrected with every account on file, not just this one.
Because this qualified as an exempt uninsured straight switch, with no increase to balance or amortization, the 27.9% figure reflects the actual contract-rate payment, not a stress-tested one.
What to take from this file
- 01A stale mailing address is a real renewal risk, not a minor administrative detail. A renewal notice sent correctly, to the wrong address, is functionally the same as no notice at all.
- 02An auto-renewal onto the posted rate isn't a mistake by the lender -- it's the default outcome of no instructions being received. The lender didn't do anything wrong; the notice simply never arrived.
- 03Catching it late doesn't mean the fix is complicated. A mortgage already past its own maturity date, with no change to balance or amortization, still qualifies for an exempt straight switch the moment someone acts on it.
- 04Update the mailing address everywhere, not just with the mortgage lender. The same gap that caused this file's problem is invisible until the next notice that matters also goes to the wrong place.
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 — 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.
- ▸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).
Illustrative in this file — lender-specific, not rules:
- ▸6.49% / 4.65% rates — rates move daily; neither is a quote.
- ▸the lender's automatic posted-rate rollover when no renewal instructions are received — each lender sets its own default-renewal policy; this is common industry practice, not a published universal rule.
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.