The mortgage payoff calculator helps you find out. Minnesota National Bank's Early Mortgage Payoff Calculator will show you what it will take to pay off your mortgage early.Use this calculator to see what it will take to pay off your credit card balance and what you can change to meet your repayment goals. Use this calculator to see what it will take to pay off your credit card balance, and what you can change to meet your repayment goals. Use SmartAsset's free Minnesota mortgage loan calculator to determine your monthly payments, including PMI, homeowners insurance, taxes, interest and more. Use this free Minnesota mortgage calculator to estimate your monthly mortgage payments and annual amortization. There are three fields to fill in: home price, down payment and mortgage interest rate. In the dropdown box, choose your loan term. Return to Credit cards. Catch Up on Past-Due Bills.