Excel EDATE function
To add or subtract a number of months from given date in Excel, the EDATE function can help you quickly to solve this job. With the EDATE function, you can return serial number of the date that is some months before or after the start date. And then, format the serial numbers to normal date format.
The syntax for the EDATE function in Excel is:
Return serial number which is n months in future or past.
To calculate the future or past date by adding or subtract the number of months from the given dates, please enter the below formula, and you will get a serial numbers, see screenshot:
And then, go to the Format Cells dialog box to format the serial numbers as a normal date format as you need, see screenshot:
Note: In the above formula, A2 is the start date you want to add or subtract months, B2 is the cell contains the month number you want to add or subtract.
Tips: You can also replace the cell references in the above formulas with the date text string and month number, such as: