The client
A mining-services contractor near Greater Sudbury, working under a two-year service contract with a mine operator that renews on a two-year cycle. Every renewal includes a mobilization payment covering the cost of standing up equipment and crew for the new term — a real, contracted, recurring feature of the business, not a one-time windfall. Year one of the current cycle, with the mobilization payment, netted $132,000; year two, the steady state, netted $72,000.
Business
Mining-services contractor, sole proprietorship
Two-year renewable service contract with a mine operator
Contract cycle income
$132,000, then $72,000
Year one includes a recurring mobilization payment
Credit picture
Good standing, one service-truck loan
Truck loan $480/mo
Purchase
$430,000, Greater Sudbury
Property tax $310/mo; lender heat estimate $150/mo
Down payment
$43,000 — 10%
Under 20%, so the file must be default-insured
Regulator
FSRA-licensed mortgage agent
Mortgage Brokerages, Lenders and Administrators Act, 2006
The problem
The first lender’s underwriter, seeing a mobilization payment nearly double the steady-state year, treated year one as an anomaly and excluded it, reading only the steadier, more recent year two.
Excluding the mobilization year
- ▸Income used: year two (steady state) only, $72,000/yr ÷ 12 = $6,000/mo
- ▸Liabilities: mortgage payment at the qualifying rate, property tax, heat and the service-truck loan
- ▸TDS: 62.0% against CMHC’s 44% maximum. Declined.
The mobilization payment looked, at a glance, like a one-off — the kind of windfall a cautious underwriter is right to discount. It isn’t. This contractor’s service agreement rebuilds the mobilization payment into every two-year renewal, which means excluding it doesn’t make the income more conservative; it makes the average wrong. Our piece on a self-employed borrower on a two-year average covers how a full contract cycle, not a single representative year, is the correct unit to average.
The numbers
At 10% down this is an insured file: CMHC’s maximums — GDS 39%, TDS 44% — apply as hard numbers.
| Structuring the insured loan | Amount |
|---|---|
| Purchase price | $430,000 |
| Down payment (10%) | −$43,000 |
| Base mortgage (90% LTV) | $387,000 |
| CMHC premium — 3.10% in the 85.01–90% LTV band, capitalized | +$11,997 |
| Total insured mortgage | $398,997 |
The minimum down payment at this price is $21,500 — 5% of the purchase price, since $430,000 sits under the $500,000 tier boundary — so $43,000 clears it comfortably.
| Rate & payments | Figure |
|---|---|
| Contract rate — 5-year fixed (illustrative, not a quote) | 4.95% |
| Minimum qualifying rate — greater of contract + 2% and 5.25% | 6.95% |
| Monthly P&I at the qualifying rate — the ratios run on this | $2,782 |
| Monthly P&I at the contract rate — what he actually pays | $2,309 |
Income — excluding vs. recognizing the mobilization payment
| Income treatment | Monthly |
|---|---|
| Year two (steady state) alone | $6,000 |
| Full two-year contract cycle ($132,000 + $72,000 ÷ 2 = $102,000/yr) | $8,500 |
TDS — excluding vs. recognizing the mobilization payment
| TDS line | Steady-state year only | Full contract-cycle average |
|---|---|---|
| Housing costs (PI + tax + heat) | $3,242 | $3,242 |
| Service-truck loan | $480 | $480 |
| Income used | $6,000 | $8,500 |
| TDS vs. the 44% cap | 62.0% ✗ | 43.8% ✓ |
GDS on the full contract-cycle average comes to 38.1% — inside the 39% cap, though with less room than the TDS margin. Once the mine operator’s service agreement confirmed the mobilization payment recurs at every renewal, treating it as anything other than ordinary contract income stopped making sense. This is a different tool from an add-back, which restores a non-cash deduction within a single year — contract-cycle smoothing instead changes which years are counted.
The solution
An FSRA-licensed Ontario mortgage agent reframed the mobilization payment from an anomaly to a documented, recurring feature of the contract.
First, obtained the underlying service agreement with the mine operator, showing the mobilization payment written into every two-year renewal — not a one-time bonus, but a standard term of doing business under this kind of contract.
Second, placed the file with a lender willing to average across the full two-year contract cycle rather than defaulting to the single most recent tax year, referencing our worked GDS and TDS examples for how a multi-year average is built and defended.
Third, packaged the contract terms alongside the tax filings:
The outcome & the closing math
Approved and funded: insured at 90% LTV, 25-year amortization, 5-year fixed, for a mortgage that can be weighed against our data on the average new mortgage amount in Canada. The last piece of broker work was confirming the cash needed at closing beyond the down payment.
| Cash due at closing (beyond the down payment) | Amount |
|---|---|
| Ontario land transfer tax on $430,000 — 0.5% / 1.0% / 1.5% / 2.0% marginal brackets; Greater Sudbury adds no municipal LTT | $5,075 |
| Ontario RST on the insurance premium — 8% × $11,997; the premium itself is capitalized, but the tax on it is cash at closing | $960 |
| Legal fees, title insurance & adjustments | varies |
What to take from this file
- 01A recurring contract payment is not the same as a one-time windfall. This file swung from 62.0% to 43.8% TDS once the mobilization payment was recognized as an ordinary, contracted feature of every renewal.
- 02The underlying contract is the document that settles the question. A service agreement showing the payment clause in writing is stronger proof than any amount of arguing about the T1 alone.
- 03Average across the actual cycle length, not a fixed calendar convention. A two-year service contract calls for a two-year average built around its own renewal pattern.
- 04GDS can run tighter than TDS on a smoothed-income file. Here it cleared with less room than the TDS margin, worth watching if debts change before closing.
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.
- ▸CMHC — CMHC Home Start — minimum down payment tiers (5%/10%) and the $1.5M insured price cap.
- ▸CMHC — Purchase (Mortgage Loan Insurance) — default-insurance premium schedule by LTV band (25-year amortization).
- ▸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.
- ▸Ontario.ca — Retail Sales Tax: Insurance and Benefits Plans — 8% Ontario RST on default-insurance premiums, cash at closing.
Illustrative in this file — lender-specific, not rules:
- ▸4.95% contract rate — rates move daily; not a quote.
- ▸treating the mobilization payment as recurring rather than a one-off — a documented-history judgment call, not a fixed 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.