Mortgage Refinance Interest Calculator

How much interest can you save if you refinance your mortgage? This calculator helps you find out! Enter the specifics about your current mortgage, along with new loan amortization, rate and closing costs. We will then determine how much interest refinancing can save you.

Original mortgage balance
Total amount for your original mortgage.

Original rate
Annual percentage rate of your original mortgage.

Original amortization
The total number of years for your original mortgage.

Number of payments made
The total number of payments you have made on your original mortgage.

New rate
Annual percentage rate of your new mortgage.

New amortization
The total number of years for your new mortgage.

New mortgage balance
Total amount for your new refinanced mortgage. This amount is equal to your current balance on your original mortgage. All closing costs and prepayment penalties are assumed to be paid at the time of closing. These additional costs are not added to your new mortgage balance.

Closing costs
Total fees and other costs associated with the new mortgage and paid at the time of closing. This calculator assumes that all closing costs are paid with proceeds other than the new mortgage (closing costs are not added to the total for your new mortgage amount).

Prepayment penalties
Some mortgages require you to pay a penalty if the mortgage is paid off early. If you current mortgage has a penalty for prepayment, enter that amount here. Your prepayment penalties are assumed to be an additional cost that is paid at the time of closing.

Breakeven point
The breakeven point occurs when your interest savings equals your additional closing costs and prepayment penalties. If you have no closing costs or prepayment penalties, there is no breakeven point.