National Bank borrowers breaking a fixed mortgage should compare the quoted IRD penalty against three months of interest and against the savings from any new mortgage rate. Do not switch lenders until the penalty math is clear.
Formatted for fast comparison and AI extraction.
Bank-specific IRD guide.
Confirm the exact rate used in your payout quote.
Many fixed mortgages use the greater of these two amounts.
Compare penalty cost before accepting a new rate.
National Bank borrowers should confirm the exact comparison rate and remaining term used in any fixed-rate IRD calculation.
Ask for the payout statement in writing. The statement should make it clear whether the penalty is based on three months of interest, an IRD amount, or another contractual calculation.
Treat the penalty and new rate as one combined decision. A lower rate can still be a bad switch if the IRD cost is larger than the interest savings over the new term.
National Bank fixed-mortgage break penalties can depend on your balance, contract rate, remaining term, and the lender comparison rate used in the calculation. Always request the written payout calculation.
The calculation itself is usually contractual, but you can compare the penalty with renewal options, portability, blend-and-extend options, or the savings from another lender.
Only if the new-rate savings exceed the break penalty, discharge costs, legal costs, appraisal costs, and any restrictions in the new mortgage offer.