Create automatic loan amortization schedule table with PMT, IPMT, PPMT formulas in Microsoft Excel The tutorial shows how to build an amortization schedule in Excel to detail periodic payments on an amortizing loan or mortgage.Here is the link to my spreadsheet where you can calculate a loan over x years to be paid back monthly. It will give you the amortized payment amount. I am trying to create an amortization table that accounts for early or late payments and adjusts the interest amount accordingly. This calculator will help you determine the balance of a loan when payments have been different than the negotiated terms. In this video I'm going to show you how you can use Microsoft Excel to conduct a fairly straightforward exercise in loan amortization. I would like to be able to calculate the remaining amount of loan due after each payment on a loan with irregular payment dates and irregular amounts. Track loans to the penny.