Employee Turnover Costs

Turnover costs are the total of all expenses incurred when a position becomes vacant and must be filled. The term is common in human resources, but not in accounting—and that is precisely where the real problem lies: The costs are incurred, but they do not appear as a single total anywhere.

Why the sum Remains Invisible

The individual items are allocated to different cost centers and time periods. The job posting is charged to the marketing budget, the recruitment consulting fee is treated as an outside service, onboarding is covered by colleagues’ working hours, and the loss of productivity isn’t accounted for at all. None of these entries includes the term “employee turnover.”

The result: In budget discussions, the cost of employee retention measures is pitted against a figure that no one knows. Anyone who estimates turnover costs eliminates precisely this asymmetry.

The Four Cost Categories

• Recruiting: Job postings, HR consulting, selection processes, and the time spent by the relevant executives and the HR department.
• Onboarding: Training sessions, guidance from experienced colleagues, whose own productivity declines during this time.
• Productivity loss: the difference between full capacity and actual performance—beginning during the termination phase and ending when the replacement is fully operational.
• Administration: Contract processing, preparation of certificates, registration changes, and IT and access management for both parties involved in the transfer.

The third block is the largest and, at the same time, the most difficult to grasp. It is the reason why the approximate models are significantly higher than the directly verifiable calculations.

Modeling as a Multiple of Annual Salary

In practice, turnover costs are almost always calculated as a multiple of the annual salary for the position in question. The reason is pragmatic: The annual salary correlates with nearly all the key factors—level of qualifications, training duration, scarcity in the job market, and the extent of the loss in productivity.

Typical multipliers range from 0.25 to 2.0 times the annual salary. It is important to understand the context: The multiplier is an assumption, not a measured value. Anyone who uses a figure from a publication also adopts the assumptions underlying that survey—including the industry, job description, survey year, and definition of the positions included.

What Drives the Factor Up

• A long training period before reaching full productivity
• A tight job market and correspondingly long time to fill positions
• Close customer relationships that depend on the individual
• Specialized Knowledge Without a Substitution Policy
• Leadership responsibilities that impact an entire team

On the downside are well-documented processes, short onboarding periods, a well-maintained pool of candidates, and roles that can be filled quickly.

The Target Quota and What It Would Be Worth

The practical value of the calculation rarely lies in the absolute amount, but rather in the difference: What would it be worth to lower the rate by two or three percentage points? This figure represents the budget that is theoretically available for customer retention measures.

She doesn't say which measure is effective. That's a separate question, and it can't be answered using the same calculation.

What Turnover Costs Are Not

They are neither a balance sheet item nor a key performance indicator with a standardized definition. Two companies that both report “turnover costs” often mean different things—depending on whether productivity losses are included, whether retirements and the expiration of fixed-term contracts are counted, and how the turnover rate itself is calculated.

When making comparisons over several years or against market values, the definition must therefore be included in the documentation. Without it, the figure is not comparable—not even to the company’s own figure from the previous year.

Conclusion

Turnover costs are an estimate that is highly informative but not very precise. Their value lies in translating an otherwise invisible burden into a quantity that can be used to make decisions. Anyone who uses them should disclose their own assumptions—the factor per departure is the key adjustment variable, and if you do not specify it, you can produce any result you want.