Headcount planning decides how many positions each team gets, what they cost and when they are filled. How to build a headcount plan, keep it reconciled to the budget, and handle changes during the year.
Headcount planning is the process of deciding how many positions each team will have over the budget period, what each will cost and when each will be filled. It sits where HR and finance meet: HR knows the roles and the hiring pipeline, finance owns the budget, and the plan fails when those two views drift apart. Payroll is usually the largest cost line a company has, so a headcount plan that is wrong by a few hires is wrong by a meaningful amount of money.
Most headcount plans overspend on paper and underspend in reality, because hires start later than planned. Model start dates honestly and the budget will reflect the months you will actually pay for.
Once the year starts, the plan becomes a forecast. Track actual hires, departures and start dates against the baseline every month, and update the full-year cost forecast rather than just the list of open roles. Treat every new request as a change against the baseline, approved within the delegation of authority, so the plan stays a controlled document instead of a wish list. The monthly comparison belongs alongside budget vs actual reporting, where payroll variances are usually the first to show.
Ettex Sheets fits the model well: a positions table with statuses and start dates, cost formulas that recalculate by month, and a baseline copy to compare against. Because it is one shared sheet rather than separate HR and finance files, a change to a start date updates the cost forecast immediately, which feeds back into the wider workforce planning picture.
Headcount counts people. FTE (full-time equivalent) counts capacity, so two half-time employees are two headcount but one FTE. Budgets are often set in FTE, while HR reporting uses headcount.
Track them, at least separately. Contractors often replace unapproved hires, and leaving them out makes the headcount plan look disciplined while total people cost rises.
In detail for the budget year, with a lighter outline for the following year so long-lead roles can be requested in time.
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