Yes — you can have a first and second mortgage on the same Ontario home at the same time. This is a common setup: your existing mortgage stays in first position, and a new loan is registered as a second charge behind it. Borrowers do this to access home equity for debt consolidation, renovations, or investments without breaking the terms of their first mortgage. What matters is that you have enough equity, that you can carry both payments, and that you understand the second mortgage will cost more than the first.

How a first and second mortgage work together

Every mortgage is registered against your property in a specific order of priority. The first mortgage is registered first, which means if the property were ever sold under power of sale, the first lender gets paid before anyone else. A second mortgage is simply the next charge registered after it — it can come from the same lender or a completely different one, and both loans exist side by side.

Each mortgage has its own interest rate, payment schedule, and terms. You make two separate payments. Your first mortgage might be a 5-year fixed term with a major bank, while the second could be a 1-year term with a private lender at a higher rate. Neither lender needs the other’s permission for you to arrange the second loan, although most second-mortgage lenders will confirm the details of the first mortgage (balance, payment, and whether it is in good standing) before approving you.

Why borrowers add a second mortgage instead of refinancing

The most common reason is to leave a good first mortgage alone. If your first mortgage has a low rate or a large prepayment penalty for breaking the term early, refinancing the whole thing just to access $50,000 of equity can be expensive. A second mortgage lets you borrow against your equity while the first mortgage continues untouched.

Speed is another reason. Private second mortgages — arranged through a licensed mortgage broker — can fund in days rather than weeks, which matters when you need money for a time-sensitive opportunity, a tax bill, or to stop high-interest debt from compounding. If your credit took a hit or your income is hard to document, a private lender that focuses on the equity in your property may approve a second mortgage where a bank would decline a refinance.

Related reading: private mortgages in Ontario are frequently structured as second mortgages, and our guide to private mortgage rules in Ontario explains how these loans are regulated.

How much can you borrow on a second mortgage?

It comes down to available equity. Lenders look at the combined loan-to-value ratio (CLTV) — your first mortgage balance plus the new second mortgage, divided by your home’s current value.

Conventional lenders such as banks and credit unions generally cap total borrowing at about 80% of the property’s value. On a $700,000 home with a $400,000 first mortgage, that leaves roughly $160,000 of borrowable equity (80% of $700,000 is $560,000, minus the $400,000 first mortgage). Private lenders will often go to higher loan-to-value ratios than banks, in exchange for higher interest rates and fees — which is why second mortgages are one of the most common uses of private lending.

Keep in mind that a higher combined loan-to-value means more risk for the second lender, and that risk shows up in the price: expect the second mortgage rate to be meaningfully higher than your first mortgage rate.

What lenders look at before approving the second loan

A second-mortgage lender evaluates many of the same things as a first-mortgage lender, but the weighting is different:

Equity in the property. This is the deciding factor, especially with private lenders. More equity means more options and better pricing.
Income and ability to carry both payments. The lender will stress-test your budget with both mortgage payments plus property tax, heating, and other debts.
Credit history. Banks want strong credit for a second mortgage; private lenders are more flexible and will often approve borrowers with bruised credit if the equity is solid. See how to get a mortgage with bad credit in Ontario.
Property type and condition. Standard residential properties in established Ontario markets are the easiest to finance; unusual properties get more scrutiny.
Purpose of the funds. Debt consolidation, renovations, and investment are the most common and well-understood uses. Our guide to second mortgages for debt consolidation walks through the math of replacing high-interest debt with secured borrowing.

The real costs of carrying two mortgages

A second mortgage costs more than a first, and not just in the interest rate. Budget for:

A higher interest rate than your first mortgage, reflecting the lender’s second-position risk.
Lender and broker fees — private second mortgages commonly carry a lender fee and, when arranged through a broker, a broker fee, usually deducted from the advance or added to the loan.
Legal fees for registering the second charge against your property.
An appraisal in many cases, so the lender can confirm the current value.

Run the full cost — not just the monthly payment — before you sign. A second mortgage at a higher rate can still be the cheapest option overall if the alternative is breaking your first mortgage and paying a large prepayment penalty, but that is a calculation worth doing carefully with a licensed professional.

Second mortgage vs. refinancing: which is better?

There is no universal answer; it depends on your first mortgage’s terms:

Choose a second mortgage when your first mortgage has a great rate, a big penalty to break, or you need funds fast and cannot wait for a full refinance approval.
Choose a refinance when your first mortgage is already at renewal, the penalty to break is small, or consolidating everything into one payment at a lower blended rate saves you money overall.

If your first mortgage is coming up for renewal, read the mortgage renewal process in Ontario — renewal time is often the cheapest moment to restructure.

The bottom line

Having a first and second mortgage at the same time is completely normal in Ontario — thousands of homeowners do it. The keys are having enough equity, being honest about whether you can comfortably carry two payments, and comparing the total cost of a second mortgage against simply refinancing. If your situation involves bruised credit, tight timelines, or a first mortgage you do not want to disturb, a private second mortgage arranged through a licensed broker (FSRA licence #13380) is often the most practical path to your equity.

Wondering how much equity you could access? Contact Kia Pakravan for a no-obligation review of your options — including whether a second mortgage or a refinance saves you more.