In the example shown, the formula in H11, copied down, is: Note ISPMT assumes principal amounts are equal, but the payment is variable. For a loan where the payment is a fixed amount, see the IMPT function. Notes:

Dave Bruns

Hi - I’m Dave Bruns, and I run Exceljet with my wife, Lisa. Our goal is to help you work faster in Excel. We create short videos, and clear examples of formulas, functions, pivot tables, conditional formatting, and charts.