The client
A salaried buyer purchasing a $540,000 recreational property near Canmore, with $108,000 down (20%, a conventional, uninsured file). The property lets on a short-term basis for roughly a five-month peak season and sits largely unused the rest of the year — a pattern that isn’t unusual against Canadian rental vacancy trends near resort towns, but one that most standard rental-income policies aren't built to read cleanly. Salaried income was $95,000 a year, with a $300-a-month personal loan.
Recreational properties near resort towns like Canmore carry a particular financing wrinkle: many buyers intend some personal use alongside renting the property out, and a five-month peak season followed by months of minimal activity doesn't map cleanly onto either “primary residence” or “standard year-round rental” categories most lending policy is built around.
Borrower
Salaried, single applicant
$95,000/year, $300/mo personal loan
Purchase
$540,000 recreational property, Canmore
Property tax $267/mo; heat estimate $150/mo
Down payment
$108,000 — 20%
Conventional, uninsured file
Season 1 gross revenue
$36,000
Booking-platform statements, prior season
Season 2 gross revenue
$41,500
Booking-platform statements, most recent season
The problem
The first lender's policy on investment and rental property income assumes a conventional, year-round tenancy; short-term seasonal booking revenue simply didn't fit the category the policy was written for, so none of it was counted. Against salaried income alone, TDS came to 48.8%, well over the 44% ceiling most lenders hold to on a conventional file — despite two consecutive seasons of real, documented rental revenue.
This is a distinct problem from a rental refusal over unreliable income: the two seasons here were fully documented on platform statements, consistent year over year, and genuinely collected. The issue was entirely about how (or whether) a seasonal, non-continuous income stream fits a policy built around how underwriters actually read seasonal income and layoff cycles in other contexts — and here, the first lender's answer was simply not to.
The first lender's refusal wasn't a comment on the reliability of the two seasons' revenue — both were fully documented on third-party booking-platform statements, not the borrower's own estimate. It was a comment on the category the income fell into, and that category simply wasn't one the policy recognized as countable at all.
The numbers
This is an uninsured, conventional purchase, so OSFI's minimum qualifying rate applies rather than a CMHC premium band.
| The base mortgage | Amount |
|---|---|
| Purchase price | $540,000 |
| Down payment (20%) | −$108,000 |
| Base mortgage (80% LTV, uninsured) | $432,000 |
| Rate & payment | Figure |
|---|---|
| Contract rate — 5-year fixed (illustrative, not a quote) | 5.45% |
| Minimum qualifying rate — greater of contract + 2% and 5.25% | 7.45% |
| Monthly P&I at the qualifying rate | $3,147 |
Averaging the season, net of costs
The two documented seasons averaged $38,750 a year ($36,000 and $41,500, divided by two). The second lender then applied a 45% net-of-operating-expense factor — covering cleaning, platform fees, utilities and management during the letting season — before adding the result to income.
| Step | Figure |
|---|---|
| Two-season average gross revenue | $38,750/yr |
| Net of 45% operating-expense factor | $17,438/yr |
| Added to monthly income | $1,453/mo |
| TDS line | No seasonal credit | Season averaged, net of costs |
|---|---|---|
| Housing (P&I $3,147 + tax $267 + heat $150) | $3,564 | $3,564 |
| Personal loan | $300 | $300 |
| Income used | $7,917/mo (salaried only) | $9,370/mo (salaried + net seasonal) |
| TDS | 48.8% ✗ | 41.2% ✓ |
The solution
A mortgage associate licensed under Alberta's Real Estate Council of Alberta moved the file to a lender with a documented policy for averaging seasonal short-term rental income across two full, verifiable seasons rather than declining to count it outright.
The 45% net-of-operating-expense factor applied here is illustrative of one lender's own treatment; every lender that offers this kind of program sets its own percentage, and some require a minimum number of documented seasons before they will use it at all. What made the file work was continuity: two consecutive seasons of platform-verified revenue in a comparable range, not a single strong season that might not repeat.
The package leaned entirely on third-party booking-platform statements rather than the borrower's own estimates — the same kind of arm's-length verification any mortgage associate would want on file before asking an underwriter to count non-continuous rental income at all.
Two consecutive seasons in a comparable range — rather than one strong season with no track record behind it — is what let the second lender treat this as a durable, repeatable income stream rather than a single lucky booking calendar. A single season of revenue, however well documented, would have been a much harder case to make.
The outcome
Approved and funded: conventional, 80% LTV, 25-year amortization, 5-year fixed term, with the seasonal rental income now counted rather than ignored. GDS came to 38.0% and TDS to 41.2%, both inside the ratios most lenders hold to on a conventional file.
Closing costs stayed qualitative here rather than a quoted figure — Alberta has no provincial land transfer tax, only a Land Titles registration fee that scales with the property and mortgage amount, budgeted as an estimate alongside legal fees and adjustments.
Whether this treatment is available again next year depends on the next season’s numbers holding in a similar range; a sudden drop the following year would put the averaging approach itself back under scrutiny, which is exactly the discipline a documented, season-by-season file protects against.
What to take from this file
- 01A short-term seasonal rental isn't automatically unfinanceable income — it's income most standard policies weren't written to read. The right lender, not a rewritten story, is usually the fix.
- 02Refusing to count short-term seasonal income at all is a common but not universal first-lender policy. Know which lenders on your shelf have a documented seasonal-averaging program before you submit this kind of file.
- 03Two consecutive, platform-verified seasons carry more weight than one strong one. Continuity is what lets an underwriter treat the pattern as durable rather than lucky.
- 04The net-of-expense factor is entirely lender-specific and not a published rule. This file used 45%; confirm the actual figure with each lender before quoting a client.
- 05In Alberta, budget closing costs as an estimate. With no provincial land transfer tax, the Land Titles registration fee still needs planning for, just never as a fixed number repeated across files.
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:
- ▸5.45% contract rate — rates move daily; not a quote.
- ▸refusing to count short-term seasonal income at all — a common but not universal first-lender policy.
- ▸45% net-of-expense factor on averaged seasonal revenue — each lender sets its own seasonal-income treatment.
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.