Understanding Mortgage Prepayment Penalties

Want to refinance, but worried about the penalty? You should be — prepayment penalties can be significant. But sometimes they’re worth paying, and sometimes there are ways to minimize them.

How Penalties Are Calculated

Variable Rate Mortgages

Simple: 3 months’ interest. On a $400,000 mortgage at 5%, that’s about $5,000. Predictable and usually reasonable.

Fixed Rate Mortgages

The greater of 3 months’ interest OR the Interest Rate Differential (IRD). IRD can be substantial — sometimes $15,000-$25,000 or more — depending on how much rates have dropped since you locked in and how much time remains on your term.

3 mo.
Variable Penalty
IRD
Fixed can be higher

Strategies to Reduce Penalties

  • Port your mortgage: If buying a new home, you may be able to transfer your existing mortgage
  • Wait for renewal: At renewal, there’s no penalty to change lenders or terms
  • Blend and extend: Some lenders let you blend your current rate with a new rate and extend your term
  • Use prepayment privileges: Make maximum lump sum payments first to reduce balance before breaking

💡 Get The Real Number

Request a penalty quote in writing from your lender. Don’t guess — get the exact number. Some lenders’ IRD calculations are more punitive than others. We can help you understand the calculation.