The client
A self-employed newcomer ran a marketing consulting practice from Calgary, billing every client in the United States and the United Kingdom. Two years of Canadian business income, T1s and Notices of Assessment supported the file -- but every GST/HST return on record showed zero dollars remitted.
Business
Self-employed marketing consultant
All clients outside Canada
GST/HST filings
Registered, filed on schedule
Zero dollars remitted every quarter
Qualifying income
$13,400/month
From two years of documented Canadian business income
Property
$615,000, Calgary
10% down, insured
The problem
An underwriter's standard checklist for a business-for-self file often calls for GST/HST filing history as one signal of an active, ongoing business. Read at a glance, a string of nil remittances looks like exactly the opposite signal -- a business collecting no sales tax at all.
CRA's own rules say otherwise for this business. A consulting service performed in Canada but supplied to a client who is a non-resident, and not registered for GST/HST, is an exported service -- zero-rated under Schedule VI, Part V of the Excise Tax Act. The supplier still registers once past the $30,000 threshold and still files returns, but the tax charged on those exported services is genuinely zero, not merely small.
Why zero dollars remitted was the correct outcome
- ▸Every client this consultant billed was a non-resident business, none registered for Canadian GST/HST
- ▸Exported consulting services to that kind of client are zero-rated by law, not by omission
- ▸A zero-rated supplier still registers, still files, and still keeps records proving the clients' non-resident status -- the paperwork exists, it just shows a zero
The numbers
Once the GST/HST filings were read correctly, the mortgage math ran on the same documented two years of business income the file already had.
| Sizing the insured mortgage | Amount |
|---|---|
| Purchase price | $615,000 |
| Down payment (10%) | -$61,500 |
| Base mortgage (90% LTV) | $553,500 |
| CMHC premium (3.1% at 90% LTV) | +$17,158 |
| Total insured mortgage | $570,658 |
| Total debt service | Figure |
|---|---|
| Payment at the qualifying rate (7.39%), 25 years | $4,135/mo |
| Property tax | $340/mo |
| Heat (lender estimate) | $145/mo |
| Line of credit payment | $260/mo |
| Total debt service | 36.4% |
36.4% left real room against income that had been fully documented from the start. The GST filings were never evidence against the business -- they were evidence of exactly what the business does, correctly reported to CRA.
The solution
A mortgage associate treated the nil GST/HST remittances as a documentation question, not an income question, and answered it with the client's own export records.
First, confirmed the zero-rated treatment directly with the client's accountant, including confirmation that every client billed was a non-resident, non-GST-registered business.
Second, supplied client invoices and payment records showing the export pattern -- foreign billing addresses, foreign currency, no Canadian clients on the books at all.
Third, submitted a short cover note with the self-employed mortgage underwriting documentation explaining why zero-rated exports produce a zero-dollar remittance history without signalling an inactive or under-reporting business.
The outcome
The mortgage funded at 5.39% with TDS at 36.4%, qualified on the same two years of documented business income the file always had -- the GST/HST question was resolved with an explanation, not a change to the numbers.
This is an insured purchase, so the 39%/44% GDS/TDS maximums apply directly; the ratios landed well inside them.
What to take from this file
- 01A zero-dollar GST/HST remittance history is not automatically a red flag. Exported services to non-resident clients are genuinely zero-rated by law.
- 02Confirm the zero-rating with the client's accountant and their client list, not just the GST/HST return itself -- the underlying fact pattern is what supports the treatment.
- 03A GST/HST filing checklist item is a proxy for an active business, not the only proof of one. Two years of T1s and NOAs still carry the qualifying-income analysis.
- 04A short explanatory note heads off a misread before it becomes a decline. The underwriter is not wrong to notice a pattern of zeros -- the broker's job is to explain what produced it.
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 — Purchase (Mortgage Loan Insurance) — default-insurance premium schedule by LTV band (25-year amortization).
- ▸CMHC — CMHC Reviews Underwriting Criteria — GDS 39% / TDS 44% maximums and the 600 credit-score floor for insured files.
Illustrative in this file — lender-specific, not rules:
- ▸5.39% contract rate — rates move daily; not a quote.
- ▸the qualifying income figure — based on this file's own two years of documented business income; every self-employed file is individually assessed.
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.