Share article
Share article
Summary: A second mortgage is an additional loan registered against your home behind your existing first mortgage. It lets you borrow against built-up equity without touching the first mortgage, but it sits in second position, usually carries a higher rate, and your lawyer has to register the new charge and confirm where it ranks on title.
Second mortgages come up when a homeowner wants to tap equity but does not want to break or refinance a first mortgage that carries a good rate. They turn up in debt consolidation, renovations, and short-term cash needs. Here is how they work in Ontario, what they cost, and what your lawyer does when one is registered.
What is a second mortgage in Ontario?
A second mortgage is an additional loan secured against a property that already has a first mortgage on it. Both loans are registered as charges against the same title, and "second" simply means the new loan ranks behind the first in priority. You keep your existing first mortgage in place and borrow against the equity you have built.
It usually takes one of a few forms:
A lump-sum second mortgage. A fixed amount advanced at closing and repaid on a set schedule, often interest-only for a short term.
A home equity line of credit (HELOC). A revolving credit line secured against your equity that you draw on as needed, described by the Financial Consumer Agency of Canada. When a HELOC is registered behind a first mortgage, it is a second-position charge.
A private second mortgage. Financing from an individual or a non-bank lender, usually at a higher rate, used when a bank will not extend more credit.
How does a second mortgage work, and where does it sit on title?
Priority is the whole point. Because the second mortgage is registered after the first, the first lender is repaid first out of any sale or enforcement proceeds, and the second lender is paid only from what is left. That extra risk is why a second mortgage carries a higher rate than a first. If there is not enough equity to cover both loans, the second lender can come up short, so lenders size a second mortgage conservatively against the remaining equity.
From approval to discharge, a second mortgage moves through a few clear stages:
Approval. The lender reviews your income, credit, and the equity sitting behind the first mortgage.
Registration. Your lawyer registers the new charge on title in Ontario's electronic land registry, behind the existing first mortgage.
Priority. If the first lender requires it, or the second lender wants assurances, your lawyer handles any postponement or priority agreement between the two charges.
Repayment. You pay the second mortgage on its own terms, on top of your first mortgage payments.
Discharge. Once it is paid off, the lender provides a discharge and your lawyer registers it to clear the charge from title.
Because a private second mortgage can be costly, many lenders require you to get independent legal advice before signing, so the rate, fees, and enforcement terms are explained before you commit.
What does a second mortgage cost?
A second mortgage is more expensive than a first because the lender takes on more risk sitting behind it. Beyond the interest rate, expect a lender or broker fee plus the legal and registration costs of putting the new charge on title. Map the full picture, including the costs involved in a real estate transaction, and weigh a second mortgage against simply refinancing the first before you decide.
Does a second mortgage change your land transfer tax?
No. Ontario Land Transfer Tax applies to the conveyance of land, not to registering a mortgage against a home you already own. You are adding a charge, not transferring title, so taking a second mortgage does not trigger LTT. The tax only comes back into play when the property itself changes hands.
Second mortgage vs refinancing vs HELOC
These three solve different problems:
Second mortgage | Refinancing the first | HELOC |
Adds a new loan behind your first | Replaces your existing first mortgage | Revolving credit secured by your equity |
Keeps your first mortgage and its rate | New rate and terms on the whole balance | Draw and repay as you need |
Higher rate, second in priority | One payment, lender stays in first position | Interest only on what you draw |
Best when your first mortgage rate is worth keeping | Best when today's rates beat your current one | Best for ongoing or flexible borrowing |
In short, a second mortgage makes sense when your first mortgage rate is worth protecting and you need to reach your equity without disturbing it.
Frequently asked questions
Is a second mortgage the same as refinancing?
No. Refinancing replaces your first mortgage with a new one; a second mortgage adds a separate loan behind the first and leaves the first mortgage in place.
Can I get a second mortgage from a private lender in Ontario?
Yes. Private individuals and non-bank lenders offer second mortgages, usually at higher rates and fees than a bank, and they often require you to get independent legal advice before signing.
What happens to my second mortgage if I sell?
Both charges are paid out of the sale proceeds (the first mortgage first, then the second), and your lawyer registers a discharge for each so title is clear for the buyer.
Is a HELOC a second mortgage?
A HELOC registered behind an existing first mortgage sits in second position, so it works as a second charge. The difference is that a HELOC is revolving credit rather than a one-time lump sum.
Do I pay land transfer tax on a second mortgage?
No. Land transfer tax applies when land is conveyed, not when you register a mortgage against a home you already own.
About the author
Joel Fox is a co-founder and COO at Ownright. He helps run the firm's day-to-day work on Ontario residential closings, refinances, and sales, and writes regularly to demystify the parts of a transaction that most homeowners only encounter once or twice in their lives.
At Ownright, we focus entirely on Ontario residential real estate law. When you take out a second mortgage or refinance, we register the new charge, confirm its priority behind your existing mortgage, and discharge it once it is paid off. You can start your closing online or get in touch with any questions.
Legal references: Mortgages Act, R.S.O. 1990, c. M.40 (mortgage charges, priority, and discharge in Ontario); Land Titles Act, R.S.O. 1990, c. L.5 (registration of charges on title); Land Transfer Tax Act, R.S.O. 1990, c. L.6 (tax on the conveyance of land).
Important note: This article is not legal, financial, or tax advice. No one should act, or refrain from acting, based solely on the information in this post or any linked materials without first seeking appropriate legal or professional advice.
