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How to get the last day of the month in Excel and Google Sheets
Excel & Google Sheets
=EOMONTH(A2,0)Try it with your data
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Step by step
- 1Enter your date in A2.
- 2In a result cell, enter =EOMONTH(A2,0).
- 3The second argument (0) means the current month. Use 1 for next month, -1 for last month.
- 4Format the result cell as a date.
- 5Combine with DAY to get the number of days in the month: =DAY(EOMONTH(A2,0)).
Tips
- =DAY(EOMONTH(A2,0)) returns the total number of days in the month — useful for calculating monthly quotas or proration.
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Frequently asked
How do I get the last day of the next month?
Change the offset to 1: =EOMONTH(A2,1). For two months ahead use 2, and so on.
Is there an alternative to EOMONTH?
Yes: =DATE(YEAR(A2),MONTH(A2)+1,0) also returns the last day. Day 0 of any month is the last day of the previous month, making this a useful trick.