Why Default Insurance HST Hits as Cash at Closing, Not Part of Your Mortgage
A $650,000 townhouse in Kanata. Five percent down. Mortgage approved at 5.29%. The buyer had budgeted $3,200 for legal fees and disbursements. Three days before closing, the lawyer's statement of adjustments showed $4,896 due. The extra $1,696 was sitting on a line that read "PST on mortgage insurance premium."
The buyer called it a surprise. The lender's disclosure package had mentioned it. So had the mortgage broker's checklist. But neither document made it sound like something that would blow a hole in the moving budget.
Here's the structure. If you put down less than 20% on a home purchase in Canada, federal law requires you to carry mortgage default insurance. The premium is calculated as a percentage of the loan amount, 4% at five percent down, 3.1% at ten percent down, 2.8% at fifteen percent. On a $617,500 loan (95% of $650,000), the premium at the lowest tier is $24,700. That $24,700 gets added to your mortgage balance. You finance it. You pay interest on it for 25 years.
The tax does not get added. In Ontario, insurance premiums are subject to eight percent provincial sales tax. That $24,700 premium generates $1,976 in tax. And that $1,976 is due in full, in cash, on the day you take possession.
Why the premium gets financed but the tax doesn't
The insurance premium is part of the loan structure. CMHC, Sagen, and Canada Guaranty all allow it to be capitalized into the mortgage balance because it's a direct cost of providing the insurance. The insurer is extending coverage over the life of the loan. The borrower is paying for that coverage over the life of the loan.
The tax is not coverage. It's a retail sales tax collected by the province on a one-time transaction. Ontario treats it the same way it treats PST on a car or a boat: payable at the point of sale. There is no mechanism to roll it into the mortgage because, from the province's perspective, the transaction occurred the moment the policy was issued. The lender can't finance a tax liability that the province considers already due.
What this looks like in a real closing budget
Take that Kanata townhouse again. First-time buyer, family gift covering the $32,500 down payment. Mortgage approval at $617,500 plus the $24,700 premium, for a total loan of $642,200. Monthly payment of $3,874.
The buyer saved an additional $4,000 for closing costs: $1,800 for the lawyer, $650 for title insurance, $400 for a home inspection report done months earlier, and a $1,150 cushion. After the $1,976 tax hit, the cushion dropped to zero. Moving truck, first grocery run, window coverings, all went on the credit card.
The line item shows up late because most real estate lawyers don't prepare the statement of adjustments until 48 to 72 hours before closing. By then, the buyer's cash position is locked. Asking family for more money feels awkward. Liquidating an RRSP or TFSA mid-week is messy. So the credit card becomes the bridge.
Online mortgage calculators rarely surface this cost. They'll show you the monthly payment with the premium included. They'll break out legal fees as a range. But the tax? It's either missing or buried in a footnote labelled "other closing costs." Buyers see the approved mortgage amount and assume that's the full picture of what gets financed. It isn't.
If you're buying with less than 20% down, add the premium tax to your closing budget as a hard number, not a contingency. For a $600,000 purchase at five percent down, budget $1,824. At $750,000, budget $2,280. This is not money you might need. It's money you will need, in cash, on closing day.
A $650,000 townhouse in Kanata. Five percent down. Mortgage approved at 5.29%. The buyer had budgeted $3,200 for legal fees and disbursements. Three days before closing, the lawyer's statement of adjustments showed $4,896 due. The extra $1,696 was sitting on a line that read "PST on mortgage insurance premium."
The buyer called it a surprise. The lender's disclosure package had mentioned it. So had the mortgage broker's checklist. But neither document made it sound like something that would blow a hole in the moving budget.
Here's the structure. If you put down less than 20% on a home purchase in Canada, federal law requires you to carry mortgage default insurance. The premium is calculated as a percentage of the loan amount, 4% at five percent down, 3.1% at ten percent down, 2.8% at fifteen percent. On a $617,500 loan (95% of $650,000), the premium at the lowest tier is $24,700. That $24,700 gets added to your mortgage balance. You finance it. You pay interest on it for 25 years.
The tax does not get added. In Ontario, insurance premiums are subject to eight percent provincial sales tax. That $24,700 premium generates $1,976 in tax. And that $1,976 is due in full, in cash, on the day you take possession.
Why the premium gets financed but the tax doesn't
The insurance premium is part of the loan structure. CMHC, Sagen, and Canada Guaranty all allow it to be capitalized into the mortgage balance because it's a direct cost of providing the insurance. The insurer is extending coverage over the life of the loan. The borrower is paying for that coverage over the life of the loan.
The tax is not coverage. It's a retail sales tax collected by the province on a one-time transaction. Ontario treats it the same way it treats PST on a car or a boat: payable at the point of sale. There is no mechanism to roll it into the mortgage because, from the province's perspective, the transaction occurred the moment the policy was issued. The lender can't finance a tax liability that the province considers already due.
What this looks like in a real closing budget
Take that Kanata townhouse again. First-time buyer, family gift covering the $32,500 down payment. Mortgage approval at $617,500 plus the $24,700 premium, for a total loan of $642,200. Monthly payment of $3,874.
The buyer saved an additional $4,000 for closing costs: $1,800 for the lawyer, $650 for title insurance, $400 for a home inspection report done months earlier, and a $1,150 cushion. After the $1,976 tax hit, the cushion dropped to zero. Moving truck, first grocery run, window coverings, all went on the credit card.
The line item shows up late because most real estate lawyers don't prepare the statement of adjustments until 48 to 72 hours before closing. By then, the buyer's cash position is locked. Asking family for more money feels awkward. Liquidating an RRSP or TFSA mid-week is messy. So the credit card becomes the bridge.
Online mortgage calculators rarely surface this cost. They'll show you the monthly payment with the premium included. They'll break out legal fees as a range. But the tax? It's either missing or buried in a footnote labelled "other closing costs." Buyers see the approved mortgage amount and assume that's the full picture of what gets financed. It isn't.
If you're buying with less than 20% down, add the premium tax to your closing budget as a hard number, not a contingency. For a $600,000 purchase at five percent down, budget $1,824. At $750,000, budget $2,280. This is not money you might need. It's money you will need, in cash, on closing day.
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