Headcount vs. FTE with dynamic arrays

One formula block that returns headcount, FTE and part-time share per month, per org unit — without a single helper column.

Excel (advanced)03 Headcount and FTEAdvanced18 min

The recording for this walkthrough is being published — the files below already contain the full model.

What you will build

  • 01Build a month spine with SEQUENCE and EOMONTH
  • 02Count active employees on a reference date with BYCOL and LET
  • 03Reconcile FTE against the payroll total so the numbers survive an audit

Dataset used

2,400 anonymised employment records with entry date, exit date and contractual hours.