The client
An investor in the Kelowna market who had built a four-property rental portfolio the disciplined way — every unit cash-flowing against tight rental vacancy conditions, every mortgage current, a personal residence held separately. A fifth property, a $640,000 property with a signed lease already in hand at $2,950 a month, looked like a straightforward addition to a track record that had never once been a problem.
Existing portfolio
4 rental properties, all performing
Plus a separately owned principal residence
Fifth purchase
$640,000, signed lease $2,950/mo
25% down; conventional, uninsured rental financing
Personal income
$126,000 / year
$10,500 per month for the ratio math
Principal residence carrying costs
$2,280 P&I + $380 property tax
Her own home, separate from the rental portfolio
Down payment
$160,000 — 25%
Standard for a rental purchase at most lenders
Regulator
Submortgage broker
BC’s Registrar of Mortgage Brokers (BCFSA)
The problem
The decline had nothing to do with the numbers on the fifth property, the tenant, or the borrower’s income. Her bank’s internal policy simply stops financing rental doors at four per borrower — a portfolio ceiling, not a ratio test, and one that does not appear on any rate sheet until a fifth application hits it.
Why the ratios never got run
- ▸Four rentals financed, all performing — the bank’s own history with this borrower is clean
- ▸The bank’s internal appetite caps rental financing at four doors per borrower, illustrative of a policy that varies lender to lender
- ▸A fifth application at this bank is declined on the cap alone, before GDS or TDS is ever calculated
For a growing investor, a cap like this is invisible until it is hit — and once it is, the existing relationship offers no path forward, however clean the track record.
The numbers
The subject property qualifies on its own terms at a lender whose portfolio appetite covers six or more doors, using an 80% rental offset against the property’s own carrying costs — a treatment, like any offset percentage, that is set by each lender individually and mapped more broadly in our comparison of rental income offset methods.
| Structuring the fifth purchase | Amount |
|---|---|
| Purchase price | $640,000 |
| Down payment (25%) | −$160,000 |
| Mortgage (75% LTV) | $480,000 |
| Rate & payments | Figure |
|---|---|
| Contract rate — rental financing (illustrative, not a quote) | 5.09% |
| Minimum qualifying rate — contract + 2% | 7.09% |
| Monthly P&I at the qualifying rate — the ratios run on this | $3,389 |
| Monthly P&I at the contract rate — what would actually be paid | $2,816 |
Offsetting the subject property’s own costs
| Subject property, offset method | Monthly |
|---|---|
| P&I at the qualifying rate | $3,389 |
| Property tax | $275 |
| Heat | $0 — tenant-paid |
| Subject carrying costs | $3,664 |
| Rent offset at 80% of $2,950 | −$2,360 |
| Shortfall carried into TDS | $1,304 |
The other four rentals do not appear in this calculation at all — each already qualifies on its own carrying costs at its own lender under the same kind of offset, and none adds a shortfall to this file.
TDS at the new lender
| Ratio | Monthly |
|---|---|
| Principal residence P&I | $2,280 |
| Principal residence property tax | $380 |
| Subject-property shortfall (from above) | $1,304 |
| Total $3,964 ÷ personal income $10,500 → TDS 37.8% | ✓ |
Only the shortfall — not the rent, and not the full carrying cost — ever touches the personal ratios. That is what makes a fifth, sixth or seventh door financeable at all once a lender’s offset policy and portfolio appetite both fit.
The solution
A BCFSA-licensed submortgage broker moved the file entirely, rather than trying to argue the existing bank past its own internal cap.
First, confirmed the decline was a portfolio-cap issue, not a ratio or credit issue. That distinction determines the fix: no amount of extra documentation moves a policy ceiling, only a different lender does.
Second, shopped specifically for portfolio appetite, not just rate — a lender publishing appetite for six or more rental doors, using an 80% offset consistent with what the other four properties already ran on.
Third, packaged the full portfolio, not just the new purchase. A statement of real estate owned, showing every property’s address, mortgage balance, rent and lender, let the new lender see the track record whole rather than door by door.
The outcome & the closing math
Funded at 75% LTV on conventional rental financing, at a lender whose portfolio appetite has room well beyond a fifth door — the growth plan, not just this purchase, is what the broker was actually placing.
| Cash due at closing (beyond the down payment) | Amount |
|---|---|
| BC Property Transfer Tax on $640,000 — 1% / 2% marginal brackets | $10,800 |
| Legal fees, appraisal & adjustments | varies |
No default-insurance premium applies here — rental purchases at 25% down are conventional and uninsured; the down payment floor itself is lender policy, not a CMHC minimum.
What to take from this file
- 01A portfolio cap is invisible until a client hits it. A clean four-door history is no protection against a bank’s internal ceiling on the fifth — know each lender’s stated door limit before an application, not after a decline.
- 02A decline at the cap is not a ratio problem. Re-documenting income or credit changes nothing; only a lender with room in its own policy does.
- 03Under an offset method, only the shortfall reaches personal ratios. The $2,950 rent and the $3,664 in carrying costs never appear directly in TDS — only the $1,304 gap between them does.
- 04Package the whole portfolio, not just the new purchase. A statement of real estate owned lets a new lender see the track record a single application would hide.
- 05Rental down-payment minimums and offset percentages are lender policy, not regulation. Confirm both, in writing, before setting a growing investor’s expectations for the next door.
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%.
- ▸Property Transfer Tax Act, RSBC 1996, c. 378, ss. 3(1) and 3.01(4) — BC's property transfer tax: 1% / 2% / 3% marginal brackets.
- ▸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:
- ▸four-door portfolio ceiling at the bank — portfolio caps are internal lender policy.
- ▸80% offset and 5.09% rental rate — treatment and pricing vary by lender.
- ▸25% down on a rental purchase — rental down-payment floors are lender policy, not regulation.
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.