OTTAWA REAL ESTATE
Mortgage Prepayment Penalty When You Sell Your Home
Mortgage Prepayment Penalty When You Sell Your Home in Ontario
If you break your mortgage before the end of its term to sell, your lender usually charges a prepayment penalty. For a variable-rate mortgage that’s typically about three months’ interest; for a fixed-rate mortgage, it’s usually the greater of three months’ interest or an interest rate differential (IRD) — and the IRD version can run into thousands of dollars. You can sometimes reduce or avoid it by porting your mortgage, timing the sale near your term’s end, or using prepayment privileges first. Knowing your penalty before you list keeps it from ambushing your net proceeds.
Here’s how the prepayment penalty works, why fixed-rate penalties can be so large, and what you can do about it.
What is a mortgage prepayment penalty?
A prepayment penalty is a fee your lender charges for paying off (or paying down beyond your allowed limit) a closed mortgage before the end of its term. When you sell and discharge the mortgage mid-term, you’re effectively breaking the contract early, and the penalty compensates the lender for the interest they expected to earn.
It applies to closed mortgages, which is what most people have because they carry lower rates than open mortgages. The Financial Consumer Agency of Canada explains prepayment penalties and how lenders calculate them, and it’s the best neutral reference for understanding your own situation. The penalty isn’t a fine or a sign you did something wrong — it’s a contractual cost of ending the mortgage early, and for many sellers it’s simply one of the expected costs of moving before a term is up.
When a penalty applies — and when it doesn’t
A penalty generally applies when you break a closed mortgage before its term ends. It generally does not apply if your term is ending anyway (you’re at renewal), if you have an open mortgage, or if you can port your mortgage to your next home (more on that below). Some lenders also waive or reduce penalties in specific circumstances, so your mortgage contract is the authority.
The single biggest factor is whether your mortgage is fixed or variable, because the two are penalized very differently. Knowing which you have — and how much term is left — tells you roughly what to expect before you even call your lender.
How the penalty is calculated
There are two common methods, and which applies depends on your mortgage type.
Three months’ interest. For variable-rate mortgages, the penalty is usually simply three months’ interest on your outstanding balance. It’s straightforward and, in most cases, relatively modest.
The greater of three months’ interest or the IRD. For fixed-rate mortgages, lenders typically charge the greater of three months’ interest or an interest rate differential. The IRD is designed to make up the difference between your current rate and the rate the lender could charge now for the remaining term — and depending on how rates have moved and how much term is left, it can be far larger than three months’ interest.
Because lenders calculate the IRD in different ways, the only reliable number is the payout figure from your own lender.
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Why fixed-rate (IRD) penalties can be so large
The IRD catches many sellers off guard. In simple terms, it grows when there’s a lot of term left and when your contract rate is well above the comparison rate the lender uses. The math varies by lender — some use posted rates in a way that inflates the penalty — so two people with similar mortgages can face very different IRD penalties depending on their lender’s method.
This is why a fixed-rate penalty can be thousands of dollars, occasionally more, while a variable-rate penalty on the same balance is a fraction of that. Where rates sit relative to your contract, driven by the Bank of Canada‘s decisions, is a big part of what determines your IRD at any given moment. If you have a fixed mortgage with significant term remaining, get your exact figure early — don’t assume it’s small.
How to reduce or avoid the penalty
You have several possible levers, depending on your mortgage and timing:
Port your mortgage. Many mortgages are portable, meaning you can carry your existing rate and terms to your next home, avoiding the penalty entirely. This is one of the most powerful options for move-up sellers, and it’s covered in more depth in the guide on whether you have to pay off your mortgage when you sell.
Time the sale near your renewal. If your term is close to ending, waiting until renewal (or close to it) can shrink or eliminate the penalty, since there’s little remaining term for an IRD to apply to.
Use your prepayment privileges first. Many mortgages allow you to prepay a percentage of the balance each year penalty-free; applying that privilege before discharge can reduce the balance the penalty is calculated on.
Consider a variable mortgage’s smaller penalty. If you’re likely to move, the typically smaller three-months-interest penalty on a variable mortgage is worth weighing when you choose a mortgage — a planning point for next time as much as this sale.
General homeowner guidance from CMHC and the FCAC resources are useful for understanding these options before you talk to your lender.
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An illustrative example
To show how the two methods diverge, here’s a purely illustrative example — not a quote for any real mortgage. Imagine a $400,000 balance. A three-month interest penalty at a given rate might land in the low thousands. An IRD penalty on the same balance, with two or three years left on a fixed term and a meaningful gap between the contract rate and the lender’s comparison rate, could be several times larger — sometimes ten thousand dollars or more.
The point of the illustration isn’t the specific figures, which depend entirely on your rate, balance, remaining term, and lender’s method. It’s the shape of the difference: variable penalties tend to be modest and predictable, while fixed IRD penalties can be large and vary widely. That’s why “how much is my penalty?” almost always requires your lender’s actual payout statement rather than a rule of thumb, and why fixed-mortgage sellers should never assume.
Timing your sale around the mortgage
For some sellers, timing is a genuine lever. If you’re within a few months of renewal, the remaining term is short, so an IRD penalty shrinks toward the three-months-interest floor — meaning a sale timed near renewal can cost far less to exit than one with years left on the term. Whether waiting makes sense depends on the market too; a strong selling window may be worth more than the penalty saved, or vice versa. Housing conditions tracked by Statistics Canada and local trends help weigh that trade-off.
This is rarely a reason to delay a move you need to make, but where timing is flexible, lining up your sale with your mortgage’s renewal can save real money. It’s worth running the numbers both ways — penalty-now versus wait-for-renewal — before deciding, and general cost guidance from CMHC can help frame it.
How to find out your exact penalty
Estimates only get you so far — for the real number, contact your lender and ask for a mortgage payout statement that includes the prepayment penalty as of your expected closing date. Lenders can usually provide this, and it’s the figure your lawyer will use at closing.
Ask early, especially with a fixed mortgage. Knowing the penalty before you list lets you plan around it — whether that’s porting, timing, or simply budgeting for it — rather than being surprised on closing day. Provincial information on the closing process is available from the Government of Ontario. If you are selling your current home and buying the next one, the guide to selling and buying a home at the same time covers timing, bridge financing and closing dates.
Factoring the penalty into your net proceeds
A prepayment penalty comes straight out of your sale proceeds, so it directly reduces what you walk away with. For a fixed mortgage with a large IRD, that can be a meaningful dent — enough to affect your down payment on your next home. This is exactly why estimating your net proceeds, penalty included, before you list matters so much.
If you’re coordinating a purchase, the penalty question and the porting question are part of the same plan: porting may let you avoid the penalty and keep a favourable rate, while breaking the mortgage means budgeting the penalty into your net. Local market conditions tracked by the Ottawa Real Estate Board set your likely sale price, and the penalty is one of the costs between that price and your net — the same picture buyers and sellers weigh when they compare options on REALTOR.ca.
Jason Polonski is a full-time Ottawa REALTOR® with Right at Home Realty who makes sure sellers understand costs like the mortgage prepayment penalty before they list — so nothing ambushes their net proceeds — seven days a week across Kanata, Stittsville, Barrhaven, Manotick, and the wider west end.
His Bachelor of Commerce from Concordia University, a double major in Marketing and Finance, means the mortgage-and-money side of a sale is something he explains clearly and factors into your plan, while pointing you to your lender for the exact figures. Drawing on work with hundreds of Ottawa buyers and sellers, Jason keeps the full cost picture — penalty included — in front of you from the start. If you’re selling mid-term on a fixed mortgage, a conversation about porting, timing, and net proceeds before you list can save you a real amount of money.
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Mortgage Prepayment Penalty (FAQs)
Usually, yes, if you break a closed mortgage before its term ends. A variable mortgage typically costs about three months’ interest; a fixed mortgage usually costs the greater of three months’ interest or an interest rate differential, which can be much larger.
For variable mortgages, generally three months’ interest on the balance. For fixed mortgages, the greater of three months’ interest or an interest rate differential (IRD) that reflects the gap between your rate and the lender’s current comparison rate. Lenders calculate the IRD differently, so ask yours.
The IRD grows when there’s a lot of term left, your contract rate is well above the lender’s comparison rate, and some lenders calculate it in ways that inflate it. That’s why a fixed penalty can be thousands, while a variable one on the same balance is far smaller.
Port your mortgage to your next home if it’s portable, time the sale near your renewal, use your annual prepayment privileges to reduce the balance first, or — for next time — favour a variable mortgage’s smaller penalty if you expect to move. Your options depend on your contract.
Ask your lender for a mortgage payout statement that includes the prepayment penalty as of your expected closing date. That’s the figure your lawyer uses at closing, and getting it early lets you plan around it.
Yes. The penalty is paid from your proceeds when the mortgage is discharged at closing, reducing your net. That’s why it should be part of your net-proceeds estimate before you list, especially on a fixed mortgage with significant term left.
