🏠 MORTGAGE & REAL ESTATE · UPDATED 2026

Mortgage Penalty Calculator

Calculate the exact cost to break your Canadian mortgage early — including the IRD vs. 3-month interest comparison, Big Bank vs. monoline methods, and a full refinance break-even analysis.

⚠️

Breaking your mortgage can cost thousands — but sometimes it's still worth it

Canadian lenders charge the greater of 3 months interest OR the Interest Rate Differential (IRD) on fixed-rate mortgages. Big Banks calculate IRD very differently from monoline lenders — often resulting in penalties 10× higher for the same situation. This calculator shows you both.

🏠 Your Mortgage Details

📋 Current Mortgage
Fixed: penalty = greater of 3-month interest OR IRD · Variable: penalty = 3-month interest only
$
Your remaining principal balance today
%
The rate on your current mortgage
mo
How many months left until renewal date
Big Banks use a different IRD method that often results in much higher penalties
%
The bank's posted rate for your original term when you signed
%
Posted rate minus your contract rate · Auto-calculated below
%
The lender's current posted rate for a term matching your months remaining
%
Rate you'd get on a new mortgage today — used for refinance analysis
🔄 Refinance Analysis (Optional)
If you're breaking your mortgage to refinance at a lower rate, enter details below to see if it's worth it — we'll calculate your break-even point.
$
Amount you'd refinance (can include penalty)
mo
Remaining amortization on new mortgage

⚠️ Your Estimated Mortgage Break Penalty
$0
See breakdown below
APPLIES

Interest Rate Differential (IRD)

$0
Rate difference × balance × remaining term
APPLIES

3-Month Interest

$0
Balance × rate ÷ 12 × 3 months

🧮 IRD Calculation Breakdown

Your Contract Rate What you pay now 0%
Comparison Rate (Big Bank method) 0%
Rate Differential Contract rate − comparison rate 0%
Outstanding Balance $0
Remaining Term In years 0 yrs
IRD Penalty Differential × balance × term $0

🏦 Big Bank vs. Monoline Penalty Comparison

The same mortgage, the same situation — but the IRD calculation method can make a massive difference in your penalty.

🏦 Big Bank Method

$0
Posted rate minus your discount vs. current posted rate for remaining term

🏢 Monoline / Credit Union

$0
Your contract rate vs. current market rate for remaining term
Break Penalty
$0
Estimated total cost
Penalty as % of Balance
0%
Of outstanding balance
3-Month Interest
$0
Minimum penalty
Monthly Savings (if refi)
$0
With new rate
Break-Even Point
— mo
Months to recover penalty
5-Yr Savings (if refi)
$0
Net savings after penalty
✅

Breaking Your Mortgage May Be Worth It

See details below.

💡 Mortgage Break Tips for Canadians

📞 Always Ask Your Lender First

Before doing anything, call your lender and ask for your exact penalty in writing. This calculator gives a close estimate, but only your lender knows the precise number they'll charge.

🔄 Port Before You Break

If you're moving, you may be able to "port" your mortgage to your new property — keeping your rate and avoiding the penalty entirely. Ask your lender if your mortgage is portable.

💰 Blend-and-Extend Instead

Many lenders offer a "blend-and-extend" option — they blend your current rate with a new rate over a new term. No penalty, though you won't get the full benefit of today's lower rates.

📅 Wait for Renewal if Possible

If you have fewer than 4–6 months left in your term, the penalty may be small enough that waiting for renewal is smarter. Run the numbers — sometimes patience pays off.