If you have taken a home loan, you would have realized how much it pains when you give your EMI every month. On top of it if you had taken floating rate loan and interest rates rise, it will pinch even more. If you want to know how much you can reduce the EMI and the interest payments by pre-payment, Early Mortgage Payoff can help you a lot. It will calculate how much money you will save by just paying $10 or $20 extra principal every month. It will also calculate the percentage savings you will make by paying the extra principal. It has columns for additional principal, monthly principal, monthly interest, accumulated interest to make you understand better how you are saving the money. You can change the each amount and see how much difference it will make. It can motivate you to pay your debt early. There is no magic and the software is based on simple math.