How to Create a Loan Amoritization Schedule in Excel. Microsoft Excel allows you to either create a spreadsheet from scratch with your own formulas or use a premade template provided by Microsoft.

To create an amortization table or loan repayment schedule in Excel, you'll set up a table with the total loan periods in the first column, monthly payments in the second column, monthly principal ...

You can build your own amortization schedule and include an extra payment each year to see how much that will affect the amount of time it takes to pay off the loan and lower the interest charges.