Want to Calculate Loan Payments Offline? Excel Mortgage Calculator.The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage. This spreadsheet creates an amortization schedule for a fixed-rate loan, with optional extra payments. Loan Amortization Schedule outlines the interest and principal payments owed on a mortgage, including the outstanding balance. Loan period in years, 1, Actual number of payments, 10. The owner's portal is your one-stop shop for all things Kia. Once signed up, you can see maintenance milestones, book appointments at your preferred dealer. Complete an amortization schedule for the following loan. Repayment – 1,436.