How a Mortgage Is Registered as a Charge on Title in Ontario

Most people think of a mortgage as a loan — money borrowed to buy a home, repaid over time with interest. That's true, but it's only half the picture. Legally, a mortgage in Ontario is also something more specific: a registered charge against the land itself, entered onto the property's title through the province's land registration system.

Understanding that distinction matters, because it explains why mortgages behave the way they do — why lenders can enforce against the property directly, why multiple mortgages on one property have a strict pecking order, and why the exact date a mortgage gets registered is far more important than most buyers realize.

A Mortgage Is a Loan AND an Interest in Land

When you borrow money secured by your home, two things happen at once:

1. A personal debt obligation is created between you and the lender — you owe the money, and you're contractually required to repay it on the agreed terms.
2. A registered charge (interest in land) is created against the property, giving the lender rights against the property itself if you don't repay as agreed.

The second part is what separates a mortgage from an ordinary personal loan. It's also what makes the property's parcel register — the official record of everything registered against a specific piece of land — the definitive source of who has a claim against that property, and in what order.

How Registration Actually Happens

Ontario land is registered under one of two systems: the modern, government-guaranteed Land Titles system, which now covers the great majority of the province, or the older, deeds-based Registry system, which still applies to some parcels that haven't been converted.

For a purchase or refinance today, registering a mortgage typically works like this:

1. The mortgage document is prepared, setting out the loan amount, the parties, and the terms.
2. A lawyer submits the mortgage for registration against the specific property, almost always electronically through Ontario's e-reg/Teraview system rather than on paper.
3. The system confirms registration, which timestamps the charge against the property's title — this timestamp is what determines the mortgage's priority relative to any other registered interest.
4. The parcel register is updated to reflect the new charge, visible to anyone who conducts a title search on that property going forward.

Licensed lawyers are not the only professionals permitted to submit documents for electronic registration, but retaining a lawyer for this work is the standard, near-universal practice for Ontario real estate closings and mortgage registrations.

Why the Registration Date Is the Whole Game

Here's the part that surprises a lot of homeowners: priority among mortgages and other registered charges is generally determined by the order in which they were registered — not by which loan is larger, which lender is more prominent, or which mortgage the borrower considers "the real one."

A mortgage registered first in time ranks ahead of one registered afterward against the same property. If the property is ever sold — including through a lender's enforcement remedies — proceeds are distributed according to that registered order, with earlier-registered charges paid out before later ones.

This is why:

• A "first mortgage" and a "second mortgage" refer to registration order, not necessarily loan size.
• Refinancing can require careful coordination — a new lender taking a first-position mortgage typically wants any prior first mortgage discharged and off title before (or simultaneously with) its own mortgage being registered.
• A lender agreeing to a second-position mortgage (behind another mortgage already on title) is accepting more risk, since it will only be paid out of what's left after the first-position mortgage is satisfied.

What Shows Up on the Parcel Register

A parcel register for a typical property will show, among other things:

• The current registered owner(s).
• Any mortgages or charges registered against the property, in registration order.
• Discharges of mortgages that have been paid off and formally cleared.
• Other registered interests, such as easements, rights-of-way, or liens.

Anyone — a buyer, a lender, a lawyer — can order a title search to see this full picture before relying on the property as security or completing a purchase.

Why This Matters Day to Day

Understanding registration and priority isn't just an academic exercise. It explains real, practical situations:

• Why a lender wants an existing mortgage discharged before registering a new one in first position on a refinance.
• Why a second mortgage or HELOC lender is more cautious, and often has stricter terms, than a first-position lender.
• Why an old, unpaid lien or an undischarged prior mortgage can complicate a sale even years later.
• Why the timing of registration — sometimes down to the same day — can matter enormously when multiple transactions are happening close together.

Frequently asked questions