The client
A homeowner in Nanaimo carried a student loan from a post-graduate program alongside a credit-card balance, both accumulated after their mortgage was already in place. Together, the two payments were enough to sink a stress-tested refinance.
Existing mortgage
$245,000 balance
22 years remaining amortization
Student loan
$22,000 balance, $310/mo
Post-graduate program
Credit card
$14,500 balance, $435/mo minimum
Consolidated in the refinance
Household income
$6,100/mo combined
Stable, salaried
Home value
$410,000 appraised
Existing 60% LTV before consolidation
The problem
Because rolling the debts into the mortgage increases the loan amount, this refinance does not qualify for OSFI's straight-switch stress-test exemption — it must be fully qualified at the minimum qualifying rate, same as any new uninsured mortgage.
Carrying both debts separately, at the stress-tested rate
- ▸Payment on the existing $245,000 balance at 6.95% MQR: $1,799/mo
- ▸Plus property tax, heat, the student loan, and the credit-card minimum
- ▸TDS: 47.3% — over the 44% ceiling
Neither debt was in arrears and neither balance was large in isolation — it was the combination of two separate monthly payments, on top of the mortgage, that broke the ratio.
The numbers
The fix rolls both debts into the mortgage balance, trading two payments for a single, somewhat larger one.
| Consolidating the debt | Amount |
|---|---|
| Existing mortgage balance | $245,000 |
| Student loan rolled in | +$22,000 |
| Credit card rolled in | +$14,500 |
| New refinance balance | $281,500 |
| TDS line | Before (separate debts) | After (consolidated) |
|---|---|---|
| Mortgage payment at 6.95% MQR | $1,799 | $2,067 |
| Property tax + heat | $340 | $340 |
| Student loan | $310 | — |
| Credit card minimum | $435 | — |
| TDS vs. the 44% ceiling | 47.3% ✗ | 39.5% ✓ |
The mortgage payment itself rises by $268/mo — but the two payments it replaces totalled $745/mo, a net improvement that is what actually moves TDS. The new $281,500 balance sits at 68.7% loan-to-value against the $410,000 appraisal, comfortably inside the 80% conventional threshold — no default insurance required, and no room concern about tipping into a higher LTV band. This kind of debt-consolidation refinance is common enough that household debt service ratio data for Canada tracks it as a distinct driver of refinance volume nationally.
The solution
A BC submortgage broker structured the consolidation refinance and confirmed the loan-to-value math before submitting.
First, showed the arithmetic, not just the conclusion. The client needed to see that a larger mortgage payment could still mean a lower TDS — not an intuitive result without the numbers side by side, and one worth walking through so the client understood the trade-off being made.
Second, confirmed the resulting LTV stayed conventional. A bigger consolidation on a lower-value property could have pushed this into a higher-rate LTV band or out of conventional financing altogether — checked before, not after, structuring the request.
The outcome
Approved and funded: $281,500 conventional refinance at 68.7% LTV, both the student loan and credit card paid out and closed on the same day the mortgage funded — no gap period where the client was carrying the old debts and the new mortgage at once.
What to take from this file
- 01Consolidating debt into a mortgage can pass TDS even as the mortgage payment itself rises. Show the arithmetic — two removed payments outweighing one added payment — rather than just asserting the result.
- 02A refinance that increases the balance is never exempt from the stress test, even for a long-standing client of the same lender. Plan for the MQR hit from the start.
- 03Check the resulting loan-to-value on every consolidation. This file landed at a comfortable 68.7%; a larger consolidation against a lower home value could tip into a different pricing band.
- 04Revolving debt with a high minimum payment does disproportionate damage to TDS relative to its balance. A $14,500 balance carrying a $435/mo minimum hurt the ratio far more than the balance alone would suggest.
- 05Close both debt payouts on the SAME day as the refinance to avoid a gap where the client is servicing everything at once.
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%.
- ▸CMHC — CMHC Reviews Underwriting Criteria — GDS 39% / TDS 44% maximums and the 600 credit-score floor for insured files.
- ▸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:
- ▸4.95% refinance contract rate — rates move daily; not a quote.
- ▸TDS 44% ceiling applied to this conventional refinance — mirrors CMHC's insured maximum but is lender policy here.
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.