How does the ENDOFMONTH function (DAX) work?

The ENDOFMONTH function (DAX) returns the last date of the month in the current context for the specified column of dates.

ENDOFMONTH Formula Syntax

ENDOFMONTH(
<dates>
)

How do you use the ENDOFMONTH function?

The ENDOFMONTH function can be used to filter <Dates> into a 1-row, 1-column table that shows only the latest date, in the entire <Dates> column devoid of all filters, that is in the same year and month as the latest visible date in <Dates>.

Considerations when using the ENDOFMONTH function

The dates argument can be any of the following:

A reference to a date/time column. Only in this case a context transition applies because the column reference is replaced by CALCULATETABLE ( DISTINCT ( <Dates> ) )
A table expression that returns a single column of date/time values.
A Boolean expression that defines a single-column table of date/time values (when used in a CALCULATE filter argument).