The client
An investor bought a new-construction unit in Thunder Bay at a builder's base price of $400,000, declared as a rental from the purchase agreement onward, qualifying on their own $9,500/month income alone.
Builder's base price
$400,000, Thunder Bay
Before tax
Declared use
Rental from the outset
Stated in the purchase agreement
Illustrative HST at 13%
$52,000
No rebate credit applied
Total price financed
$452,000
The problem
For an owner-occupied new-home purchase, a builder normally applies for the GST/HST new housing rebate and credits it directly against the price at closing, so the buyer never funds the full tax out of pocket. A builder cannot do the same for a unit declared as a rental at the outset — that buyer must instead fund the entire tax amount at closing and recover a separate, rental-specific rebate directly from CRA later, once the unit is genuinely tenanted.
Two rebates, two very different paths
- ▸Owner-occupied: the builder applies for the new housing rebate and credits it against the price at closing — the buyer never funds the full tax
- ▸Declared rental: the builder cannot apply the owner-occupier rebate at all — the buyer funds the full tax up front
- ▸The rental-specific rebate is a separate application the investor files directly with CRA, only after the unit is actually rented
The investor had budgeted the purchase the way an owner-occupied buyer would, assuming the builder's quoted price already reflected a rebate credit. It never could, once the purchase agreement declared the unit a rental.
The numbers
At an illustrative rate, the tax on the builder's base price came to a material sum, funded entirely in cash rather than credited against the price.
| Tax funded at closing, no rebate credit | Amount |
|---|---|
| Builder's base price | $400,000 |
| Illustrative HST at 13% | $52,000 |
| Total price actually financed | $452,000 |
| Qualifying the purchase | Figure |
|---|---|
| Down payment (20%) | $90,400 |
| Mortgage balance | $361,600 |
| Payment at the qualifying rate (7.20%), 25 years | $2,578/mo |
| Property tax | $340/mo |
| Heat (lender estimate) | $125/mo |
| Total debt service | 32.0% |
32.0% total debt service is informational only on this conventional investment property mortgage, qualified on the investor's own income alone. The $52,000 in tax, not the ratios, was the actual cash-to-close obstacle on this file.
The solution
A mortgage agent licensed under Ontario's Mortgage Brokerages, Lenders and Administrators Act confirmed the rental declaration's tax consequence before financing conditions were waived.
First, confirmed the rental-declaration consequence directly against the agreement of purchase and sale, rather than assuming the builder's quoted price already netted out a rebate credit.
Second, sized the mortgage against the full tax-inclusive price, rather than a net figure that assumed a rebate reducing it.
Third, set up the separate rental-property rebate application to be filed with CRA once a lease was actually in place, kept entirely apart from the mortgage file itself.
The outcome
The purchase funded conventional at 5.20%, on the investor's own income alone, with total debt service of 32.0%.
The tax was fully funded at closing rather than assumed away; the separate rental-property rebate recovery is a later, independent step handled directly with CRA, not part of this mortgage file.
What to take from this file
- 01A builder cannot apply the owner-occupier GST/HST rebate to a unit declared as a rental. Confirm the declared use in the purchase agreement before assuming any rebate is already reflected in the price.
- 02A rental buyer's closing costs can run materially higher than an owner-occupied buyer's on an identical unit. Size the mortgage against the full tax-inclusive price, not a net figure.
- 03The rental-specific rebate is recovered later, directly from CRA, once the unit is actually tenanted. It is not part of the closing itself and should not be treated as available cash at that point.
- 04Ask a new-construction investor about declared use early. The rebate consequence follows directly from that one purchase-agreement decision, made long before financing conditions are due.
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%.
- ▸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:
- ▸13% illustrative HST rate and the resulting dollar figures — the general Ontario HST rate is well established but is not itself a project-verified figure here; the rebate formula, filing deadline and lease-commitment condition for the rental-specific rebate are described qualitatively and are not asserted as exact numbers.
- ▸5.20% conventional 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.