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: Using the EOMONTH Function.
The EOMONTH function is used to return the serial number value for the last day of any particular month, past, present, or future. The syntax for the function is as follows:
=EOMONTH(base, offset)
The base value is a date from which the function should do its calculations, and the offset is a number that indicates how many months from the base date should be used. For instance, an offset of 0 would indicate that EOMONTH should return the last day of the month represented in base, whereas an offset of 4 would be four months after base, and –2 would be two months before.
As an example, the following are typical uses of EOMONTH. The first line can be used to return the last day of the current month, and the second line returns the last day of the month six months later than the date in A1:
=EOMONTH(NOW(),0) =EOMONTH(A1,6)
Remember that EOMONTH returns a serial number. Excel does not automatically format the serial number as a date. In other words, you will need to explicitly format the cell as a date.
ExcelTips is your source for cost-effective Microsoft Excel training. This tip (12156) 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: Using the EOMONTH Function.
Create Custom Apps with VBA! Discover how to extend the capabilities of Office 2013 (Word, Excel, PowerPoint, Outlook, and Access) with VBA programming, using it for writing macros, automating Office applications, and creating custom applications. Check out Mastering VBA for Office 2013 today!
When working with text in a formula, you may need to extract the left-most characters from a string of text or from a ...
Discover MoreWhen performing a statistical analysis on a large dataset, you may want to use GEOMEAN to figure out the geometric mean ...
Discover MoreNeed to figure out if a particular cell contains text? You can use the ISTEXT function to easily return this bit of trivia.
Discover MoreFREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
2016-12-28 17:32:50
Alex B
Thanks Michael.
2016-12-27 08:43:08
Clas Henrik Ericsson
Want to know what is the last date on a Monday,Tuesday etcetera in a certain month?
EOMONTH(B2;0)-(MOD((EOMONTH(B2;0)-B2)/7;1)*7)
B2 = any date representing Mon,Tues,etcetera
Weekday col B Date Last date in month with weekday in Col B
5 2016-01-01 2016-01-29
6 2016-01-02 2016-01-30
7 2016-01-03 2016-01-31
1 2016-01-04 2016-01-25
2 2016-01-05 2016-01-26
3 2016-01-06 2016-01-27
4 2016-01-07 2016-01-28
5 2016-01-08 2016-01-29
6 2016-01-09 2016-01-30
7 2016-01-10 2016-01-31
2016-12-27 06:00:32
Michael (Micky) Avidan
@Alex B,
The following is a "biy" shorter:
=NOW()-DAY(NOW())+1
--------------------------
Michael (Micky) Avidan
“Microsoft®” MVP – Excel (2009-2017)
ISRAEL
2016-12-26 06:00:47
Alex B
In my browser 2 months before is showing as "?2", this should show as "-2" (both without the quotes).
EOMonth, is also a quick way of getting the 1st day of a month, ie for the 1st day of the current month =EOMONTH(NOW(),-1)+1.
In other words, get the last day of the previous month (-1) and add 1 day.
Got a version of Excel that uses the ribbon interface (Excel 2007 or later)? This site is for you! If you use an earlier version of Excel, visit our ExcelTips site focusing on the menu interface.
FREE SERVICE: Get tips like this every week in ExcelTips, a free productivity newsletter. Enter your address and click "Subscribe."
Copyright © 2019 Sharon Parq Associates, Inc.
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: 
Comments