You can use the EDATE function to quickly add or subtract months from a date. In cell C2, enter =A2+B2, and copy down as needed.Īdd or subtract months from a date with the EDATE function You can enter a negative number to subtract days from your start date, and a positive number to add to your date. In the following example, you'll see how to add and subtract dates by entering positive or negative numbers.Įnter the number of days to add or subtract in column B. You want to transfer funds to your checking account so that those funds arrive 15 calendar days before that date, so you'll subtract 15 days from the due date. Suppose that a bill of yours is due on the second Friday of each month.