The client
A household in High River bought a $415,000 home at 10% down, with a $1,400 Home Buyers' Plan repayment shortfall from a prior year showing as added income on that year's Notice of Assessment.
Purchase price
$415,000, High River
10% down, insured
HBP repayment shortfall
$1,400
Added to a prior year's taxable income; not an outstanding balance
Combined income
$8,300/month
Other debt
$240/mo car loan
The problem
Under the Home Buyers' Plan, a missed or short annual RRSP repayment is simply added to the applicant's taxable income for that year under the Income Tax Act -- it is not a loan, carries no creditor, no ongoing balance and no monthly payment at all.
What the first lender got backwards
- ▸The applicant's Notice of Assessment showed "HBP repayment shortfall" added to a prior year's income
- ▸The first lender's underwriter treated it exactly like an outstanding loan and asked for a repayment plan
- ▸No such repayment plan exists for this kind of shortfall, because there is nothing left to repay -- the shortfall was already taxed as income the year it happened
The file stalled for weeks on a document nobody could ever produce, for a debt that was never actually outstanding.
The numbers
Once the HBP shortfall was correctly read as a closed, historical tax event, the ratios themselves were never close to a problem.
| The insured purchase, correctly classified | Amount |
|---|---|
| Base mortgage (90% of purchase price) | $373,500 |
| CMHC premium (3.10% at 90% LTV) | +$11,578 |
| Total insured mortgage | $385,078 |
| Ratio check at the qualifying rate | Figure |
|---|---|
| Payment at the qualifying rate (6.95%), 25 years | $2,685/mo |
| GDS (payment + $300 tax + $115 heat) ÷ $8,300 income | 37.3% |
| TDS (GDS numerator + $240 car loan) ÷ $8,300 income | 40.2% |
37.3% and 40.2% sit comfortably inside CMHC's 39% GDS and 44% TDS maximums, in line with the range household debt service ratios typically run across Canada. The ratios were never the obstacle on this file -- the misclassification of the HBP shortfall was.
The solution
A mortgage associate licensed under Alberta's Real Estate Act separated what the HBP shortfall actually was, under the Income Tax Act, from what the first lender's underwriter assumed it was.
First, obtained the prior year's Notice of Assessment showing the shortfall added to that year's taxable income, with no separate balance owing shown anywhere on it.
Second, supplied a plain, written explanation of the Home Buyers' Plan repayment mechanic: a missed or short annual repayment is taxed as income the year it happens, and creates no ongoing debt whatsoever.
Third, moved the file to a lender whose underwriter correctly read the notation as a closed, historical tax event rather than an obligation requiring its own repayment plan.
The outcome
The purchase funded insured at 37.3% GDS and 40.2% TDS, with nothing to repay because the HBP shortfall had already been fully accounted for on a prior year's tax return.
Both ratios sit comfortably inside CMHC's 39% GDS and 44% TDS maximums; Alberta land-registration costs on this purchase are not quoted here, since no verified provincial figure exists to cite.
What to take from this file
- 01An HBP repayment shortfall is a tax consequence, not a debt. Under the Income Tax Act, it is simply added to that year's taxable income -- it creates no creditor, no balance and no monthly payment.
- 02A request for an HBP 'repayment plan' on a shortfall already reflected on a Notice of Assessment is a request for a document that doesn't exist. Recognize the mismatch early rather than chasing it.
- 03The Notice of Assessment itself is the reliable source for how a shortfall was actually treated. It will show added income, not an outstanding balance, if that's genuinely what happened.
- 04Get written confirmation of exactly what kind of item is on the file, from the actual document, before assuming the strictest possible treatment applies.
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.
Illustrative in this file — lender-specific, not rules:
- ▸4.95% contract rate — rates move daily; not a quote.
- ▸the first lender's request for an HBP repayment plan — each lender sets its own policy for reading an HBP shortfall notation; the request applied here does not reflect any published rule about HBP shortfalls.
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.