The client
A homeowner in Winnipeg, Manitoba was discharged from a personal bankruptcy after a business failure, then spent two years rebuilding before qualifying for a first insured purchase with a credit score that barely cleared CMHC’s minimum. Two years on from that first purchase — both mortgage payments made on time, a car loan re-established and paid as agreed — the same borrower is moving up to a larger home, and the file has to clear the same 600-score floor again.
Borrower
Salaried, two years post-first-purchase
Gross income $6,900/month
Credit score
605 at first purchase → 655 now
Two years of on-time mortgage and car-loan payments
New purchase
$320,000, Winnipeg
Property tax $270/mo; heat $120/mo
Down payment
$32,000 — 10%
Under 20%, so the file must be default-insured
Other debt
Car loan, $300/month
Re-established since the discharge, paid as agreed
The problem
CMHC requires at least one borrower or guarantor on an insured mortgage to carry a credit score of 600 or higher at the time insurance is requested — not a one-time hurdle cleared once and forgotten, but a test every insured application has to pass again.
Why the floor gets tested twice
- ▸At the first post-discharge purchase, the score sat at 605 — five points above the floor, with no margin for a lender to be conservative.
- ▸CMHC’s guidance notes it will consider “alternative methods of establishing creditworthiness for borrowers without a credit history,” but the numeric floor itself does not move: 600 is 600, whether it is a borrower’s first insured file or their third.
- ▸Two years of on-time mortgage and car-loan payments moved the score to 655 — comfortably clear, but the file still has to demonstrate it, not assume it, on this second purchase.
The second concern was ordinary ratio math on top of the credit story: a bigger home means a bigger insured mortgage, and that mortgage still has to clear CMHC’s 39%/44% caps at the qualifying rate.
The numbers
On $320,000 with 10% down, this is a standard insured purchase — the only unusual element is the credit history behind it, well below where most Canadian mortgage borrowers’ credit scores actually sit.
| Structuring the second insured purchase | Amount |
|---|---|
| Purchase price | $320,000 |
| Down payment (10%) | −$32,000 |
| Base mortgage (90% LTV) | $288,000 |
| CMHC premium — 3.10% in the 85.01–90% LTV band, capitalized | +$8,928 |
| Total insured mortgage | $296,928 |
The contract rate is 4.99%, so the minimum qualifying rate is 6.99% — the greater of the contract rate plus 2 percentage points or 5.25%. Monthly payment at that rate is $2,078; at the contract rate it would be $1,725.
| Ratio at the qualifying rate | Figure |
|---|---|
| GDS — housing costs only | 35.8% |
| TDS — housing costs plus the $300 car loan | 40.1% |
Both clear CMHC’s 39%/44% caps with several points to spare — a wider margin than the first purchase had on credit score, but the same insurer, the same floor, and the same requirement to prove it fresh.
The solution
A mortgage broker registered with Manitoba’s Manitoba Securities Commission structured this as a repeat-insured-borrower file, not a routine move-up purchase.
First, pulled the current credit report early rather than assuming the score had simply improved with time. Two years of on-time payments moved it from 605 to 655, but confirming the exact number before shopping lenders avoided submitting to an insurer with a guess.
Second, documented the rebuild explicitly. See how the discharge timeline and rebuild period actually work — the file included the discharge certificate, two years of mortgage payment history on the first home, and the car loan’s payment history, so the insurer saw the trajectory, not just a single score.
Third, ran the ratio math at the qualifying rate before quoting the client a payment, since a repeat insured borrower with a rebuilt file has no more tolerance for a ratio surprise than a first-time buyer does.
The outcome & the closing math
Approved and funded: insured at 90% LTV, 25-year amortization, on a 5-year fixed term. The credit-score floor cleared with 55 points to spare rather than 5.
| Cash due at closing (beyond the down payment) | Amount |
|---|---|
| Manitoba Land Transfer Tax on $320,000 — nil on the first $30,000, then marginal brackets to 2.0% above $200,000 | $4,050 |
| Legal fees, title insurance & adjustments | varies |
Manitoba has no first-time-buyer land transfer tax rebate, so this figure applies whether it is a borrower's first purchase or, as here, their second.
What to take from this file
- 01CMHC’s 600 credit-score floor is tested at every insured application, not cleared once for life — pull the current report before you assume the old score still applies.
- 02A rebuild story needs documentation, not just a number: discharge certificate, payment history, and time elapsed all support the file.
- 03A wider score margin on a second insured file does not excuse skipping the ratio math — GDS/TDS still has to clear the caps at the qualifying rate.
- 04Manitoba’s land transfer tax carries no first-time-buyer rebate, unlike Ontario or BC — budget the full marginal-bracket figure regardless of purchase history.
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.
- ▸CMHC — Purchase (Mortgage Loan Insurance) — default-insurance premium schedule by LTV band (25-year amortization).
- ▸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.
- ▸CMHC — CMHC Home Start — minimum down payment tiers (5%/10%) and the $1.5M insured price cap.
- ▸Government of Manitoba — Land Transfer Tax — Manitoba's land transfer tax brackets (no first-time-buyer rebate).
- ▸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:
- ▸4.99% contract rate — rates move daily; not a quote.
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.