What is the difference between making biweekly mortgage payments and making extra principal payments?

Making biweekly mortgage payments involves paying half of your monthly mortgage payment every two weeks, resulting in 26 half payments per year instead of 12 full payments. This can help you pay off your mortgage faster and save on interest.

On the other hand, making extra principal payments involves paying additional money towards the principal balance of your mortgage, which can also help you pay off your mortgage faster and save on interest.

In summary, the difference is in the frequency and structure of the payments, but both methods can help you save money and pay off your mortgage sooner.