Please Note: This article is written for users of the following Microsoft Excel versions: 2007, 2010, 2013, and 2016. If you are using an earlier version (Excel 2003 or earlier), this tip may not work for you. For a version of this tip written specifically for earlier versions of Excel, click here: End-of-Month Calculations.
by Allen Wyatt
(last updated April 22, 2017)
There are many ways you can use Excel to calculate the date at the end of the next month. One such way, using the EOMONTH function, is described in other ExcelTips. There are ways you can do it, however, without using that particular function. (Some may not want to use it because the EOMONTH function used to only be available if the Analysis Toolpak was loaded. If you couldn't count on it being loaded, it doesn't make sense to rely on the function.)
For instance, one approach is to AutoFill for the last days. Let's say you wanted the last days of a series of months in the first column, beginning at A4. All you need to do is this:
The result is that the area you drag over in step 5 is filled with end-of-month dates for the next however many months. Pretty cool! A slight variation on these steps could also be used:
If you are not an AutoFill type of person, and instead prefer to use formulas, you could enter the starting end-of-month date in cell A4 (it must be an actual end-of-month date) and then the following formula in A5:
This formula calculates the date for the first day of the month two months in the future, and then subtracts one from it. The result is the last day of the next month. The formula wraps around the end of years just fine, since the DATE function increments the years properly if the month value provided is greater than 12.
Another formulaic approach is to use the following:
This formula works because it adds 32 to the starting date (to make sure you are past the end of the following month), and then subtracts the number of days the result is past the end of the month.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (12323) applies to Microsoft Excel 2007, 2010, 2013, and 2016. You can find a version of this tip for the older menu interface of Excel here: End-of-Month Calculations.
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