What this home actually costs every month.

Canadian mortgages compound semi-annually, not monthly. It is a small difference on paper and a real one over 25 years, and most online calculators written for the American market get it wrong. This one uses the Canadian convention.

With less than 20% down your mortgage must be insured. The premium is added to the mortgage and paid off over the amortization — but the Ontario provincial sales tax on that premium is not. It is due in cash on closing day, on top of your down payment and land transfer tax. The calculator shows it separately for exactly that reason.

Your lender qualifies you at the greater of your contract rate plus two percentage points, or 5.25%. You make payments at your real rate; you simply have to prove you could survive the higher one. The income figure shown assumes a 39% gross debt service ratio and counts the payment, property tax, heat and half of any condo or POTL fee — before car loans, lines of credit or other debt.

A POTL fee — parcel of tied land — covers shared elements on a freehold home: private roads, visitor parking, snow removal, landscaping. You still own and maintain the house itself, roof included. A condo fee usually covers the building envelope, common areas and the reserve fund. The status certificate tells you what is actually included, and it is worth reading before you offer, not after. The full comparison ↗

Twenty-six half-payments a year is one extra monthly payment, and all of it goes against principal. On a typical Oakville mortgage that is several years off the amortization and a large amount of interest. It costs you nothing beyond the discipline of the schedule.