Employee Turnover

Why it matters for retention

Turnover is expensive, and the cost scales with how senior and specialized the departing role is. According to SHRM, the cost of replacing an employee can range from 50% to 200% of their annual salary, depending on their level. Gallup puts the figure in a similar band, estimating that replacing an individual employee costs one-half to two times the employee's annual salary, and calls even that a conservative estimate. Work Institute lands in the same territory, putting the estimated cost of employee turnover at 33% up to 200% of the departing employee's salary.

Those percentages add up fast. A single mid-level exit can quietly cost most of a salary in recruiting, onboarding, lost productivity, and the drag on the teammates who cover the gap. Tracking turnover is how a people leader turns those losses from an invisible line item into a number the business can see and act on.

How people leaders can recognize and use it

The headline rate is only the starting point. The useful signal lives in the breakdown:

• Voluntary vs. involuntary. A high voluntary rate points at engagement, pay, or management problems; a high involuntary rate points at hiring or performance systems.
• Regrettable vs. non-regrettable. Losing your strongest performers is a different emergency than trimming roles you meant to cut. Separate the two before you react.
• Segment by team, tenure, and manager. Turnover concentrated in one department or under one manager tells you where to look first.
• Watch the first-year rate. People leaving within twelve months usually signals a mismatch between the hiring promise and the day-to-day reality.

Calculate it consistently: divide the number of departures in a period by the average headcount for that period, then multiply by 100. The exact formula matters less than using the same one every time so the trend is comparable month over month.

Practical next steps

• Set a baseline. Pull your last twelve months of turnover, split it voluntary vs. involuntary and regrettable vs. non-regrettable, and note where it clusters.
• Put a dollar figure on it. Multiply your regrettable exits by a share of their annual salaries, using the SHRM, Gallup, and Work Institute ranges above, to build the business case for retention spending.
• Run exit and stay interviews. Exit interviews tell you why people left; stay interviews tell you why your current people haven't, and which of those reasons is fragile.
• Fix the concentrated problems first. Target the team, manager, or tenure band with the worst numbers rather than launching a company-wide program that dilutes your effort.
• Re-measure and hold the line. Recheck the same segments a quarter later against your baseline so you know whether the changes actually moved the rate.