DAX Function Guide
STARTOFMONTH
Sam McKay
CEO & Founder
How does the STARTOFMONTH work?
STARTOFMONTH Formula Syntax
STARTOFMONTH(
<dates>
)
How do you use the STARTOFMONTH?
This function filters <Dates> into a 1-row, 1-column table that shows only the earliest date, in the entire <Dates> column devoid of all filters, that is in the same year and month as the earliest visible date in <Dates>.
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Considerations when using the STARTOFMONTH?
The dates argument can be any of the following:
- A reference to a date/time column.
- 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.
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Formula examples using the STARTOFMONTH
=STARTOFMONTH(DateTime[DateKey])
= STARTOFMONTH (Sales[Date])
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