The client
An adult child bought their own first home in Kawartha Lakes at $340,000, after years of paying a parent's mortgage in full by e-transfer -- a mortgage never in the child's own name.
Purchase price
$340,000, Kawartha Lakes
5% down, insured
Prior arrangement
Years of paying a parent's mortgage
Never in the child's own name
Child's own income
$7,300/month
Own mortgage-payment history
None on bureau
Reports only to the parent
The problem
A bureau file's mortgage tradeline reports only to whoever is actually named on the note. Nothing about who genuinely pays it every month changes whose credit history it builds.
What years of real payments never showed
- ▸The mortgage was, and remained, the parent's alone -- title and the note never changed
- ▸The child had paid every monthly payment by e-transfer for years, but none of it ever touched the child's own bureau file
- ▸A first lender's serviceability review read the child's complete absence of mortgage-payment history as an untested first-time housing-payment risk
Nobody had done anything wrong. The child had simply never been the one whose name the payments were legally attached to.
The numbers
Once bank-statement evidence stood in for the missing tradeline, qualifying the child's own purchase was straightforward.
| Qualifying on the child's own income | Amount |
|---|---|
| Base mortgage (95% of purchase price) | $323,000 |
| CMHC premium (4.00% at 95% LTV) | +$12,920 |
| Total insured mortgage | $335,920 |
| Ratio check at the qualifying rate | Figure |
|---|---|
| Payment at the qualifying rate (6.95%), 25 years | $2,342/mo |
| GDS (payment + $250 tax + $100 heat) ÷ $7,300 income | 36.9% |
| TDS (GDS numerator + $180 car loan) ÷ $7,300 income | 39.3% |
36.9% and 39.3% sit comfortably inside CMHC's 39% GDS and 44% TDS maximums -- the ratios were never close to the ceiling once the file actually moved, consistent with the range household debt service ratios run across Canada. The missing tradeline, not the arithmetic, was the obstacle.
The solution
A mortgage agent licensed under Ontario's Mortgage Brokerages, Lenders and Administrators Act treated the absent mortgage tradeline as a documentation gap to fill, not a credit weakness to explain away.
First, confirmed the bureau file itself was correct -- nothing was wrong with it; it simply reflected the fact that the child had never been the named borrower.
Second, pulled the child's own bank statements showing years of consistent, dated e-transfers matching the parent's mortgage payment amount, submitted as supplementary serviceability evidence rather than a bureau dispute.
Third, moved the file to a lender willing to weigh that documented history alongside the numbers, rather than treating the absent tradeline as a hard decline point.
The outcome
The purchase funded insured at 36.9% GDS and 39.3% TDS, and the family began documenting the arrangement going forward so future payments build the actual payer's own credit.
Both ratios sit comfortably inside CMHC's 39% GDS and 44% TDS maximums. Ontario land transfer tax on the $340,000 purchase came to $3,575.
What to take from this file
- 01A mortgage tradeline belongs to whoever is named on the note, never to whoever actually pays it. Years of genuine payments build no credit history at all for an informal payer.
- 02This is a documentation gap, not a bureau error. There is nothing to dispute when the file is correctly reflecting who the legal borrower actually was.
- 03Bank-statement evidence of consistent prior payments can supplement a thin mortgage-specific file. Each lender sets its own policy for weighing it -- this is not a universal rule.
- 04Document an informal family payment arrangement in writing going forward. The next years of payments should build the actual payer's own credit, not just the titleholder's.
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).
- ▸CMHC — CMHC Home Start — minimum down payment tiers (5%/10%) and the $1.5M insured price cap.
- ▸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.
- ▸Ontario.ca — Calculating Land Transfer Tax / Land Transfer Tax Refunds for First-Time Homebuyers — Ontario's marginal land transfer tax brackets and first-time-buyer refund.
Illustrative in this file — lender-specific, not rules:
- ▸4.95% contract rate — rates move daily; not a quote.
- ▸weighing bank-statement payment history alongside a thin mortgage-specific file — each lender sets its own serviceability/risk policy for a first-time buyer with no mortgage-payment tradeline; this is not a universal underwriting 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.