Ontario Second Mortgage Calculator

Second mortgages in Ontario can be a useful tool for homeowners who need additional financing. This calculator helps you estimate your second mortgage payments based on loan amount, interest rate, and term.

How Ontario Second Mortgage Works

A second mortgage is an additional loan taken out on a property that already has a primary mortgage. In Ontario, second mortgages are often used for home renovations, debt consolidation, or investment purposes.

Key points about Ontario second mortgages:

Interest rates are typically higher than primary mortgages
Second mortgages must be repaid before the primary mortgage
Lenders may require a higher down payment
Second mortgages may have different repayment terms

Types of Second Mortgages

There are several types of second mortgages available in Ontario:

Open Second Mortgage: Allows you to borrow against the full value of your home
Closed Second Mortgage: Only allows you to borrow against the remaining equity after the primary mortgage
Bridge Mortgage: Short-term mortgage used for major renovations or purchases
Equity Line of Credit: Flexible borrowing option with variable interest rates

Second Mortgage vs. Home Equity Loan

While both provide access to home equity, there are key differences:

Feature	Second Mortgage	Home Equity Loan
Repayment	Must be repaid before primary mortgage	Repaid separately from primary mortgage
Interest Rate	Higher than primary mortgage rate	Higher than primary mortgage rate
Term	Can have different terms	Usually same as primary mortgage

Calculation Formula

The monthly payment for a second mortgage is calculated using the standard mortgage payment formula:

Monthly Payment = P × (r(1 + r)^n) / ((1 + r)^n - 1)

Where:

P = Principal loan amount
r = Monthly interest rate (annual rate ÷ 12)
n = Number of payments (loan term in years × 12)

This formula calculates the fixed monthly payment required to pay off the loan over the specified term.

Worked Example

Let's calculate a second mortgage payment with these assumptions:

Loan amount: $100,000
Interest rate: 6.5% annual
Term: 25 years

Monthly interest rate = 6.5% ÷ 12 = 0.5417% or 0.005417

Number of payments = 25 × 12 = 300

Monthly payment = $100,000 × (0.005417(1 + 0.005417)^300) / ((1 + 0.005417)^300 - 1)

Monthly payment ≈ $734.32

This example shows that with a $100,000 second mortgage at 6.5% for 25 years, the monthly payment would be approximately $734.32.

Frequently Asked Questions

Can I get a second mortgage if I already have a mortgage?

Yes, you can get a second mortgage if you have good credit and sufficient equity in your home. Lenders will assess your ability to repay both mortgages.

What happens if I can't repay my second mortgage?

If you can't repay your second mortgage, it will become due and payable along with your primary mortgage. This could lead to foreclosure if you're unable to make all required payments.

Are second mortgages tax deductible in Ontario?

Interest on second mortgages is generally not tax deductible for personal use. However, if the mortgage is for a rental property, the interest may be deductible.

Can I refinance my second mortgage?

Yes, you can refinance your second mortgage, but it's important to compare rates and terms carefully to ensure you're getting a better deal.