The rent guarantee that didn't count

A builder's rent guarantee is a real, contractual promise -- if the unit doesn't rent for the stated amount, the builder tops it up for the guarantee period. But it is a payment from the builder, not rent from a tenant, and a lender's rental-income offset policy is built around a signed, arm's-length lease with a real occupant, not a developer incentive. Qualified the way the investor first assumed, at $1,900/mo of assumed rental offset, the file looked comfortable. Qualified the way the lender's policy actually works, it didn't have any rental income to offset at all.

Sized on personal income alone -- the only income the lender's policy would actually recognize at closing -- the file's TDS came to 46.6%, well past most lenders' own comfort guideline on a file like this.

Because this is a conventional, non-owner-occupied purchase, CMHC's standard homeowner schedule doesn't apply to it at all, and there is no regulatory ratio ceiling -- but the file still had to make sense to a real underwriter, not just clear a guideline, a distinction the broader rental market data doesn't settle on its own.

The gap between 46.6% and 33.0% is exactly the builder's guarantee's fault line: it is the difference between a file with no rental income recognized at all and one with a real tenant in place. The builder's own $1,900/mo promise was never going to move that number either way.

A mortgage agent licensed under Ontario’s Mortgage Brokerages, Lenders and Administrators Act treated the builder's rent guarantee as marketing, not as an underwriting input, from the first conversation.

First, confirmed directly with the lender that only a signed, arm's-length lease -- never a builder incentive -- would be recognized for the rental offset. This closed off any temptation to submit the file assuming the guarantee would simply be accepted.

Second, priced the file both ways before recommending anything. At $0 rental income the file still technically qualified at 46.6% TDS on personal income alone, but that was not a number worth funding on if it could be avoided.

Third, had the investor list and sign a real tenant on the unit before the funding condition date, treating how pre-construction income actually gets treated as a closing-timeline problem to solve, not a documentation formality. A real lease at $1,850/mo, with a 50% offset, was what the lender's policy could actually use.

The purchase funded on personal income plus the real signed lease's offset, at 33.0% TDS -- comfortably better than the 46.6% the file would have shown with no rental income at all, and nothing like what the builder's guarantee number alone would have implied.

Because this is a conventional, non-owner-occupied purchase, there is no CMHC ratio ceiling to clear; 44% is referenced elsewhere in this file only as a common lender comfort guideline, not a regulatory maximum.

• 01A builder's rent guarantee is not rental income for qualifying purposes. It is a marketing payment from the builder, and most lenders' rental-offset policy requires a real, signed, arm's-length lease.
• 02Confirm a lender's rental-income policy before assuming any number will be accepted. What counts as qualifying rent varies by lender and is worth confirming in writing, not assumed from a builder's sales package.
• 03Price the file both ways -- with and without the assumed income -- before recommending anything. Knowing the file technically clears on personal income alone changes how urgently a real lease is needed.
• 04A pre-construction closing timeline can be used to solve the income question, not just survive it. Getting a real tenant signed before the funding condition turned an assumption into a documented fact.
• 05Treat a developer's marketing numbers as marketing, not underwriting inputs. The gap between what a builder promises and what a lender will actually count can be the entire story on a file like this.