DAX Headcount (End of Period) Measure

Counts active employees as of the last date in the current filter context, a semi-additive measure.

HRAdvancedheadcountsemi-additivehr

DAX code

Headcount (End of Period) =
CALCULATE(
    DISTINCTCOUNT('Employee'[EmployeeID]),
    LASTDATE('Date'[Date]),
    'Employee'[HireDate] <= MAX('Date'[Date]),
    OR('Employee'[TerminationDate] > MAX('Date'[Date]), ISBLANK('Employee'[TerminationDate]))
)

Notes

This is a snapshot measure - it must never be summed across dates, only shown at the last date of whatever period is selected.

Requirements

An Employee table with HireDate and TerminationDate columns.

How to use this measure

In Power BI Desktop, select the table that should hold the measure and choose New measure on the ribbon.
Paste the code, then replace the placeholder table and column names with your own. The My table names fields above do this for you.
Run it through the DAX Formatter if you want it laid out in your team's style.

Related DAX measures

More DAX resources

Browse all 175 measures in the Power BI DAX Measures Library, or search the library for something similar to Headcount (End of Period).