Short answer
A second mortgage may preserve a favourable first mortgage and avoid its prepayment charge, but it adds another payment, fee layer and maturity date. Refinancing replaces the first mortgage and can combine debts into one payment, although the existing penalty and new qualification must be considered. Compare both using net cash received, total monthly payments, all fees, interest over the expected holding period and the exit. The lower advertised rate is not necessarily the lower-cost or lower-risk solution.
Start with the client’s reason
The client needs funds for debt consolidation, a closing shortfall, tax debt, renovations or business use. The existing first mortgage may have a good rate or a large payout penalty.
When a second mortgage may fit
- The first mortgage is worth preserving.
- The required amount is smaller than the full first mortgage.
- The client can carry two payments.
- The second has a clear payout event or can mature with the first.
When a refinance may fit
- One combined payment materially improves cash flow.
- The client qualifies for the replacement mortgage.
- The first-mortgage penalty is acceptable.
- The new term and amortization fit the longer plan.
A practical comparison
Do not compare a second-mortgage rate with a refinance rate in isolation. Ask for two worksheets showing the existing first payment, new second payment, refinance payment, penalties, lender and brokerage fees, legal costs, net proceeds and total cost to the expected exit date.
A second may cost more on the borrowed portion yet preserve a large first mortgage at a strong rate. A refinance may lower the blended payment but extend debt over a longer amortization. Both effects need dollars, not labels.
Questions before deciding
- How long will the additional funds be needed?
- What is the first-mortgage payout penalty?
- Can the borrower qualify for a full refinance?
- What are the combined payments under the second?
- What balance remains at the exit date?
Request a mortgage strategy session through SimplifyMortgage.ca to compare the two structures using the same timeline and cash requirement.