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A debt-consolidation refinance is a mortgage refinance where a borrower increases their mortgage balance to pay off higher-interest debts — such as credit cards or personal loans — rolling them into the mortgage at a typically lower blended interest rate. It follows the same qualification rules as any equity take-out refinance.
It can lower the total interest rate paid on the consolidated balance, since mortgage rates are typically far below credit card or unsecured personal loan rates, and it can reduce total monthly payments by spreading the debt over the mortgage’s remaining amortization. The trade-off is that unsecured debt, once rolled into the mortgage, is repaid over a much longer period and secured against the home, so the total interest paid over the life of the loan can still be higher if the amortization is long.
Lenders qualify the new, larger mortgage amount under the same total debt service ratio and minimum qualifying rate rules as any other uninsured refinance, and the amount available is limited by the lender’s maximum loan-to-value ratio.
Treated as a standard refinance: a debt-consolidation refinance follows the same rules as any equity take-out — insured mortgages cannot be refinanced for this purpose, and uninsured refinances are stress-tested at the minimum qualifying rate.
Improves TDS on paper: rolling high-interest unsecured debt into a lower-rate mortgage payment can reduce the total debt service ratio, which is one reason lenders may support the consolidation.
Longer amortization can raise total cost: consolidated debt repaid over 20+ years of amortization can cost more in total interest than paying it off faster at a higher rate, even though the monthly payment is lower.
LTV limits still apply: the amount that can be consolidated is capped by the lender’s maximum uninsured loan-to-value ratio, not by the size of the debts being paid off.
A borrower has $35,000 in credit card and personal loan debt at a blended 18% average rate, costing roughly $525/month in interest alone, before any principal repayment. They roll it into a mortgage refinance at a mortgage rate producing a combined payment increase of just $210/month on the new blended mortgage balance:
$525 − $210 = $315 saved per month in this fictional example. The borrower should still compare total interest paid over the mortgage’s full amortization, not just the monthly payment, before deciding.
Definitions reflect Canadian federal and provincial rules as of the “Updated” date above. Not advice for any specific file.
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