National Bank of Canada mortgage penalty calculator.
Estimate the penalty to break a National Bank of Canada fixed mortgage. National Bank of Canada uses posted-rate IRD — the greater of three months' interest or the interest-rate differential against National Bank of Canada's posted rate — which is why Big-6 penalties run far higher than a monoline's.
Your inputs
Which penalty applies?
National Bank of Canada charges the greater of these two — the highlighted bar is your penalty.
Lender-ready summary, your assumptions baked in, and a personalized note from an advisor at Mortgage Squad Advisors.
Breaking a National Bank of Canada mortgage: what the penalty really is
When you break a closed National Bank of Canada fixed mortgage before maturity, National Bank of Canada charges the greater of three months’ interest or the Interest Rate Differential (IRD). Three months’ interest is simple — roughly your balance times your rate, divided by four. The IRD is where National Bank of Canada, like every Big-6 bank, gets expensive: it uses a posted-rate comparison, measuring your contract rate against an inflated posted rate (around 6.79% today) rather than the discounted rate you’d actually get. That wider gap, prorated over the months left in your term, is what pushes National Bank of Canada penalties into five figures on a balance where a monoline would charge a fraction.
Why the National Bank number surprises people
National Bank applies posted-rate IRD on fixed mortgages; the All-in-One readvanceable product is collateral-charged and breaks differently. The penalty is largest early in the term — because IRD scales with the months remaining — and shrinks toward maturity, at which point three months’ interest eventually becomes the bigger of the two. The single most important thing to know is that the estimate above is only as good as the comparison rateNational Bank of Canada plugs in, and that figure is confirmed only in a written payout statement. Get one before you commit to anything.
Your exit options
You have more room than the payout statement implies. If you’re moving, port the mortgage to the new property — most National Bank of Canada products allow it with no penalty. If you just want a better rate, ask National Bank of Canada to blend-and-extend rather than break. Use your annual prepayment privilege to shrink the balance first. And the cleanest exit is always to wait for renewal, where there is never a penalty. If breaking still makes sense, run the figure through the refinance calculator to confirm the savings clear the penalty — then send us the payout statement and we’ll verify the real number and line up your exit across 50+ lenders.