IRD Penalty Calculator Canada

IRD penalty formula

Interest Rate Differential is meant to compensate a lender when your fixed rate is higher than the rate they could currently charge for a comparable remaining term.

Common IRD estimate IRD = balance x (contract rate - comparison rate) x remaining months / 12

Three months interest formula

The simpler penalty is three months of interest on your remaining balance. Many fixed-rate mortgage contracts charge the greater of IRD and three months interest.

Three months interest 3MI = balance x contract rate x 3 / 12

Why lender quotes can differ

The comparison rate is the hardest part to verify. Some lenders use posted rates, some use discounted rates, and the comparable term may be rounded down to the nearest available term. That is why an IRD calculator should be treated as a planning tool, not a final payout statement.

RenewalIQ makes the assumptions visible and encourages you to request the official lender penalty quote in writing before breaking, refinancing, selling, or switching.

IRD penalty calculator questions

What is an IRD mortgage penalty?

IRD means Interest Rate Differential. It is a fixed-rate mortgage penalty based on the difference between your contract rate and a comparison rate for the remaining term, multiplied by your outstanding balance and time remaining.

How is IRD different from three months interest?

Three months interest is based on three months of interest on your mortgage balance. IRD compares your rate with a lender comparison rate over the remaining term. For fixed-rate mortgages, lenders commonly charge the higher of the two.

Can an IRD calculator match my lender exactly?

No calculator can guarantee the exact lender penalty because the comparison rate and methodology can vary by lender. RenewalIQ helps estimate the range, but you should request an official written payout quote before making a decision.

Do variable-rate mortgages use IRD?

Variable-rate mortgages typically use a three-month-interest penalty rather than IRD, but borrowers should confirm the exact penalty terms in their mortgage contract.