A letter of employment and two paystubs settle most salary questions in minutes. Rental income never works that way, because it isn't a fact about the past, it's an estimate about the future — what a property might reasonably earn, discounted for vacancy, repairs, and the plain reality that the borrower isn't standing over the tenant the way an employer stands over a paycheque.
That's the whole reason this course exists. Lenders don't take a rental figure at face value and add it to gross income the way they would a T4 job. They run it through one of a small number of structured methods first, and which method a given lender uses — and how generously it applies that method — is exactly what decides whether a rental file clears the borrower's ratios or doesn't.
Almost every rental-income approach in Canadian residential lending falls into one of three families, and the rest of this course is organized around them.
Before any of those three methods can be applied, a lender needs a rent figure to work with, and where that figure comes from depends on whether it's the property being purchased right now (the subject property) or a property the borrower already owns. That distinction changes which documents get collected and how much scrutiny each one gets — it's the subject of Module 01, and it's worth understanding before the add-back and offset math means anything.
This course does not re-teach GDS and TDS from scratch. If debt-service ratios and the minimum qualifying rate are new territory, start with The Canadian Mortgage Underwriting Course and Debt Servicing: GDS, TDS & Ratio Strategy first. What follows here assumes you're comfortable with those two ratios and want to go deep specifically on the rental slice of the file.
The ten modules build on each other in order: subject-vs-existing rentals, then add-back, then offset, then a module that puts the two side by side and explains why they disagree, then the paperwork (market rent appraisals and rental worksheets), then DSCR, then the mechanics of entering a surplus or shortfall correctly, then portfolios, and finally the edge cases that don't fit the standard mould. Work through it in order the first time — later modules lean on vocabulary from earlier ones.
A borrower's rental property produces $2,400/month in rent. Why won't a lender simply add all $2,400 to the borrower's income the way they would a $2,400/month salary?
Rental income is discounted because it carries real risk a salary doesn't — vacancy, repairs, and the fact the landlord isn't present the way an employer is — which is exactly why lenders run it through add-back, offset or DSCR rather than treating it like a paystub. The tempting wrong answer is the tax one: it sounds plausible because people associate rental income with tax deductions, but rental income is fully taxable in Canada and taxability has nothing to do with why lenders discount it.