The client
A Prince Edward Island household refinancing their first mortgage to pay out a credit-card balance, with combined income of $7,900/month. A separate home equity line of credit, registered in second position, was staying open — undrawn, and being paid down, not increased.
Existing first mortgage
$195,000 balance
Being refinanced to consolidate a credit card
Credit-card balance paid out
$9,000
Rolled into the new mortgage
Secured line of credit
$58,000 balance, staying registered
Second position; no further draw room; not being increased
Combined income
$7,900/month
Both salaried
The problem
A revolving secured line of credit doesn't have a fixed amortized payment the way a term mortgage does, so lenders qualify it using their own convention. A common one is a flat percentage of the outstanding balance, meant to build in room for future draws — useful when a line might grow, less useful when it plainly won't.
The gap between the convention and the reality
- ▸New lender's policy: qualify the line of credit at 3% of its $58,000 balance — $1,740/mo
- ▸The line's actual current statement payment, interest-only at its posted rate: $297/mo
- ▸TDS using the policy figure: 44.8% — over the informal 44% ceiling most lenders still watch
The line of credit wasn't being increased, and the file showed no plan to draw on it further — it was being paid down as part of the same household's broader debt cleanup. A convention built to guard against future draws was doing real work against a line that had none coming.
The numbers
The refinance itself never changed size or rate depending on how the line of credit was qualified — only the debt-service math around it did.
| The refinance | Amount |
|---|---|
| Existing mortgage balance | $195,000 |
| Credit-card balance paid out through the refinance | +$9,000 |
| New mortgage balance | $204,000 |
| Contract rate | 4.95% |
| Minimum qualifying rate (greater of contract + 2% or 5.25%) | 6.95% |
| Payment at the qualifying rate, 25 years | $1,423/mo |
| Total debt service | 3%-of-balance convention | Actual statement payment |
|---|---|---|
| Mortgage payment + tax + heat | $1,803 | $1,803 |
| Line-of-credit payment | $1,740 | $297 |
| Total debt service | 44.8% ✗ | 26.6% ✓ |
The $1,506 difference between the two treatments of the same $58,000 line of credit is almost entirely what separated a file that struggled to clear a lender's own comfort line from one that cleared it with real room.
The solution
A mortgage broker licensed under Prince Edward Island's framework re-examined the line of credit on its own facts, rather than accepting the first lender's default convention.
First, confirmed the line had no further draw room and no plan to increase it. The refinance itself was paying down other debt, not adding to it — the line of credit was a fixed, known monthly cost, not an open-ended future liability.
Second, pulled the line's own current statement. At its posted rate, interest-only, the actual charge was $297/mo — verifiable, not estimated, and a small fraction of the flat 3%-of-balance figure the first lender's system had defaulted to.
Third, placed the refinance with a lender whose policy qualifies an existing, undrawn secured line at its actual current payment. Not every lender offers this treatment — the 3%-of-balance convention exists for a reason, and some lenders apply it regardless of the specific line's facts — but for a line with no draw room and a documented low payment, a broker who knows which lenders will look at the actual statement can save a file that a default policy would otherwise sink. The same underlying question — how a HELOC and a refinance interact — comes up often enough on files like this one to be worth knowing cold.
The outcome
The refinance funded at $204,000, with the second-position line of credit qualified at its actual $297/mo statement payment. TDS settled at 26.6%, against 44.8% under the flat-percentage convention the first lender had defaulted to.
Because Prince Edward Island's own household debt-service ratio is one of the figures lenders watch at a national level, a file that clears comfortably on its real numbers, rather than on an inflated policy figure, is exactly the kind of outcome that convention is supposed to protect.
What to take from this file
- 01A revolving line of credit's qualifying payment is a policy choice, not a fixed fact. The same $58,000 balance can price out at $1,740/mo or $297/mo, depending entirely on which convention a lender applies.
- 02Confirm whether a line of credit is actually being increased before accepting a draw-room-based convention. A line with no further draw room and a documented low payment is a different risk than an open-ended one.
- 03Pull the actual statement rather than assume the policy figure is the only option. The real payment was verifiable and dramatically lower than the formulaic one.
- 04A refinance can be sound on the real numbers and still look declined on a default convention. Knowing which lenders will look past their own standard policy, on the right file, is the difference.
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:
- ▸4.95% refinance contract rate / 6.15% illustrative line-of-credit rate — rates move daily; neither is a quote.
- ▸the 3%-of-balance qualifying convention — each lender sets its own convention for qualifying a revolving line of credit's payment.
- ▸the 44% comfort reference — this file is uninsured, so there is no CMHC ratio ceiling — the number is a lender comfort convention, not a regulatory pass/fail line.
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.