Create automatic loan amortization schedule table with PMT, IPMT, PPMT formulas in Microsoft Excel Fill in the "Period" column.Fill in the column titled "Period" with your payment dates. Enter your mortgage details here. Enter extra payment amount in relevant month rows. This finance video tutorial explains how to create an amortization table in excel. This Microsoft Excel template illustrates how to create a loan amortization schedule, as well as dealing with additional payments and variable interest rates. The indepth Watch Me Build is a 25 minute behemoth, showing you how to build a more complex, dynamic amortization table in Excel. Have a loan you want to pay off? Try this amortization schedule Excel template to calculate your payments and track your payoff progress.