- Every mortgage registered against Ontario land relies on a set of standard charge terms (either a lender's own registered set or a default set) that spell out these rights in detail.
- Two closed mortgages can look identical on rate and term and still have meaningfully different prepayment terms underneath.
- If you sell, refinance, or otherwise pay out a closed mortgage before the end of its term beyond what your prepayment privilege allows, the penalty formula built into your charge…
Most homebuyers hear "open" and "closed" mortgage and assume it's only about the interest rate a lender is willing to offer. It isn't. The open vs closed mortgage distinction in Ontario is a set of legal terms written directly into your mortgage — technically a "charge" once it's registered on title — that governs how much principal you can pay off early, what happens if you break the agreement, and how flexible the loan is if your plans change.
Getting this wrong can be expensive. A borrower who signs a closed mortgage expecting the freedom of an open one can be caught off guard when they try to sell, refinance, or pay down a windfall early. Understanding what each term actually commits you to — in the document, not just in the marketing — helps you choose the product that matches your real plans.
What "Open" and "Closed" Actually Describe
These labels describe the prepayment terms set out in your mortgage commitment and the standard charge terms it incorporates — not a government classification and not, by itself, the interest rate. Every mortgage registered against Ontario land relies on a set of standard charge terms (either a lender's own registered set or a default set) that spell out these rights in detail.
- Open mortgage: You can generally repay all or part of the principal at any time without a prepayment penalty.
- Closed mortgage: Prepayment is restricted. You typically get a defined annual prepayment privilege, and paying beyond it — or paying the loan off entirely — before the term ends usually triggers a penalty.
The Prepayment Privilege Clause
This is the specific clause worth reading closely. It sets out:
- How much extra principal you can pay each year without penalty
- Whether you can increase your regular payment amount, and by how much
- Whether unused prepayment room carries forward into future years
- What counts as a "prepayment" versus a payout on a sale or refinance
Closed mortgages vary widely in how generous this clause is from lender to lender. Two closed mortgages can look identical on rate and term and still have meaningfully different prepayment terms underneath.
What Happens If You Break a Closed Mortgage Early
If you sell, refinance, or otherwise pay out a closed mortgage before the end of its term beyond what your prepayment privilege allows, the penalty formula built into your charge document applies. The specific method — and the dollar result — depends on your lender, your remaining term, and market conditions at the time, none of which we can state in general terms here. Ask your lender for a written penalty quote before you commit to a sale or refinance date, and have your lawyer confirm the discharge cost before you build it into your closing budget.
Open mortgages, by contrast, are structured to be paid out at any time without this kind of penalty — part of why they tend to cost more for the flexibility they offer.
Portability and Assumability
Two more terms worth knowing, both usually tied to closed mortgages:
- Portable: Some closed mortgages let you carry the existing terms over to a new property when you move, instead of breaking the mortgage outright.
- Assumable: Some mortgages allow a qualified buyer of your home to take over your existing mortgage, subject to the lender's approval of that buyer.
Neither feature is automatic. Both depend entirely on what your specific charge document and commitment letter say, and the lender's approval process still applies in either case.
Open vs. Closed, Side by Side
| Open Mortgage | Closed Mortgage | |
|---|---|---|
| Early repayment | Generally unrestricted | Limited annual privilege; penalty beyond that |
| Best suited to | Expecting a sale or large payout soon | Holding the loan for its full term |
| Portability / assumability | Rarely relevant | Often available, lender-dependent |
| Switching lenders mid-term | Straightforward | Usually triggers a penalty |
Which Type Fits Your Situation
An open mortgage suits someone who expects to sell, inherit funds, or otherwise pay down the loan substantially in the near term and wants no penalty exposure for doing so. A closed mortgage suits someone planning to stay put and hold the loan for its full term, in exchange for terms that come with more structure around early payout.
Frequently asked questions
Can I convert a closed mortgage into an open one partway through the term?
Not automatically. Some lenders allow a conversion, sometimes with a fee or a rate adjustment, but it isn't a right built into every closed mortgage. Ask your lender directly and get any conversion terms in writing.
Does choosing open or closed affect the interest rate I'm offered?
It can be a factor, but current pricing for open versus closed products changes constantly with market conditions — that's a question for your lender or mortgage broker, not something general legal information can answer.
My mortgage documents don't clearly say "open" or "closed" — how do I check?
Look at the prepayment privileges section of your charge or commitment letter, or ask your lender directly. A lawyer reviewing your mortgage documents on a purchase, refinance, or renewal can also flag this for you.
Do open and closed mortgages get registered on title differently?
No. Both are registered as a charge against the property through Ontario's electronic land registration system. The open/closed distinction lives entirely in the prepayment terms, not in how the document is registered.
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