The client
A retired couple bought a $280,000 rental duplex in Brantford at 35% down, qualifying entirely on their own $4,100/month of CPP, OAS and workplace pension income -- not the property's own rental income, which this file never needed to count at all.
Purchase price
$280,000, Brantford
35% down, conventional
Combined CPP, OAS and pension income
$4,100/month
Confirmed by current benefit statements
A first lender's reduced figure
$3,400/month
After cutting the OAS portion for a possible future clawback
The problem
A first lender reduced the couple's counted OAS income, anticipating that the rental property's future net income might one day trigger a partial qualifying-income recovery tax on Old Age Security -- treating a future income-tax consequence as if it were today's mortgage-qualifying figure.
What got confused with what
- ▸OAS is subject to an income-tested recovery tax ('clawback') assessed on a household's overall net income at tax filing time, once total income crosses a threshold that is indexed annually
- ▸Today's mortgage application counts the full, currently documented gross OAS benefit, exactly as any other confirmed income source is counted
- ▸Whether a future tax year's clawback applies depends on the couple's whole net income picture at that time, not on a lender's own guess made today
The couple had budgeted around their full, current OAS benefit. A first lender's own guess about a future tax outcome nearly cost them that.
The numbers
Qualifying on the full, currently documented income is the only version of this file a lender could actually verify today.
| Qualifying on the full documented income | Amount |
|---|---|
| Purchase price | $280,000 |
| Down payment (35%) | −$98,000 |
| Base mortgage | $182,000 |
| Total debt service | Full documented income | First lender's reduced figure |
|---|---|---|
| Payment at the qualifying rate (6.85%), 25 years | $1,258/mo | $1,258/mo |
| Property tax + heat | $395 | $395 |
| Income used | $4,100/mo | $3,400/mo |
| Total debt service | 40.3% | 48.6% |
40.3% on the full income clears comfortably; 48.6% on the reduced figure would have declined a file with nothing actually wrong with it. Ontario's land transfer tax on the $280,000 purchase came to $2,675, unaffected by either version of the income question.
The solution
A mortgage agent licensed under Ontario's Mortgage Brokerages, Lenders and Administrators Act separated the mortgage-qualifying question from the couple's own future tax return.
First, confirmed the full OAS amount currently being paid, direct from the couple's benefit statement, with no reduction applied.
Second, explained in writing that any future OAS recovery tax is assessed on the couple's overall net income at tax time -- it is not a deduction from today's gross benefit for mortgage-qualifying purposes.
Third, flagged the clawback question to the couple's own accountant as a tax-planning matter, kept entirely separate from the mortgage file itself.
The outcome
The purchase funded conventional at 4.85% and 40.3% total debt service, on the full documented income.
Because this file is uninsured, CMHC's ratio maximums do not apply directly; the 40.3% figure is informational, showing there was never a ratio problem here at all -- only a misapplied tax concept.
What to take from this file
- 01A future OAS recovery tax is a tax-filing question, not a mortgage-qualifying deduction. Today's application counts the full, currently documented gross benefit.
- 02The clawback threshold is indexed annually and depends on the household's WHOLE net income at tax time -- not on a lender's own guess about what a new property might someday add.
- 03This file deliberately did not use the property's own rental income to qualify. CPP, OAS and workplace pension income alone carried it.
- 04Route tax-planning questions to the client's own accountant. A mortgage file is not the place to price in a future tax outcome that has not happened yet.
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.
- ▸Ontario.ca — Calculating Land Transfer Tax / Land Transfer Tax Refunds for First-Time Homebuyers — Ontario's marginal land transfer tax brackets and first-time-buyer refund.
Illustrative in this file — lender-specific, not rules:
- ▸4.85% contract rate — rates move daily; not a quote.
- ▸the OAS recovery-tax (clawback) mechanism itself — described qualitatively only -- no clawback income threshold or dollar figure is stated, since this is a federal tax-return calculation, not a mortgage-qualifying rule.
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.