Employee turnover
Definition
Employee turnover
Employee turnover is the rate at which workers leave a company over a set period, usually expressed as an annual percentage of the average headcount. It tracks every departure, voluntary or involuntary, and signals how well a business retains, engages, and grows its people.
Key takeaways
- Employee turnover is calculated by dividing separations in a period by the average headcount, then multiplying by 100.
- The U.S. Bureau of Labor Statistics recorded total monthly separations of 3.3% in late 2024, with sector rates varying widely.
- Gallup estimates replacing a salaried worker costs one-half to two times their annual salary.
- Breaking turnover into voluntary, involuntary, and regrettable buckets gives leaders a usable signal, not just a number.
- Mature offshore outsourcing markets often post lower regrettable turnover because retention is core to BPO economics.
A healthy turnover figure varies wildly by sector. The U.S. Bureau of Labor Statistics put total separations across all industries at 3.3% per month in late 2024, while accommodation and food services ran closer to 4.9% monthly, almost double the all-industry average.
You calculate it with a simple formula: divide the number of separations during a period by the average number of employees in that period, then multiply by 100. Most HR teams report it monthly and annually, and split it into voluntary, involuntary, and regrettable buckets so the number actually means something.
How it works
Employee turnover is measured in three layers — a raw rate, a typology, and a cost figure — and each layer answers a different question for the business.
The raw rate uses this formula:
`Turnover rate (%) = (Separations during period ÷ Average headcount during period) × 100`
Most companies then break separations into types so leaders can act on the right lever.
| Type | What it means | Typical lever |
|---|---|---|
| Voluntary | Employee chooses to leave (resignation, retirement) | Pay, growth, culture |
| Involuntary | Employer ends the role (layoff, dismissal) | Performance management, planning |
| Regrettable | Top performer leaves voluntarily | Engagement, career path |
| Functional | Underperformer leaves voluntarily | Often a net positive |
The cost layer matters because turnover is rarely cheap. Gallup’s 2024 workplace analysis estimates that replacing a salaried employee costs one-half to two times that worker’s annual salary once you factor in recruiting, onboarding, lost productivity, and team disruption. For a $60,000 role, that’s $30,000 to $120,000 walking out the door each time.
Tracking turnover alongside employee engagement and employee retention gives you the full picture. The rate tells you what’s happening, while engagement scores tell you why.
Examples
Three recent cases show how turnover plays out in different sectors and how outsourcing partners help cushion the blow.
Amazon, U.S. warehouses (2022). A New York Times investigation reported that Amazon’s hourly warehouse turnover reached roughly 150% annually, meaning the company was replacing its entire frontline workforce every eight months. Internal documents warned the firm could exhaust the available U.S. labour pool by 2024 if the rate held.
Concentrix, Philippines BPO operations (2023-2024). The contact-centre giant cut voluntary attrition in its Manila and Cebu sites by roughly 18% year-on-year, according to its 2024 annual report, by introducing tiered career ladders and shift-bidding tools. Average tenure on voice accounts rose past 24 months.
NHS England (2024). The U.K. National Health Service recorded a 12.7% leaver rate among nursing staff in the year to March 2024, per official NHS Digital workforce statistics, down from 13.1% the year before but still well above pre-pandemic levels of 8.8%.
The pattern repeats across industries. Firms that outsource volume-heavy roles to mature offshore markets like the Philippines often see lower regrettable turnover because BPO companies compete hard on retention — their margins depend on it.
Related terms
These adjacent concepts sharpen what employee turnover actually measures and where it sits in the wider HR stack.
- Employee retention: the inverse view, the share of staff a company keeps over a period.
- Employee engagement: the emotional and motivational state that predicts whether a worker will stay.
- Attrition: sometimes used interchangeably with turnover, but technically covers only departures the company doesn’t backfill.
- Onboarding: the structured first 30 to 90 days that drives early turnover up or down.
- Employee compensation: the pay-and-benefits mix that anchors most voluntary-quit decisions.
- Full-time employee (FTE): the headcount unit your turnover formula relies on.
FAQ
What is a good employee turnover rate?
There’s no universal number, but the U.S. Bureau of Labor Statistics shows the all-industry annual turnover hovering around 47% in 2023, while professional and business services sit closer to 38%. A rate below your sector average is generally healthy.
How do you calculate employee turnover?
Divide the number of separations during a period by the average number of employees in that period, then multiply by 100. Run it monthly and annually, and split voluntary from involuntary departures.
What’s the difference between turnover and attrition?
Turnover counts every departure, including roles you refill. Attrition usually means departures where the position is left vacant or eliminated. Both reduce headcount, but they signal different things about company strategy.
Why is employee turnover important?
It directly hits cost, productivity, and culture. Gallup pegs the replacement cost of a salaried worker at 0.5 to 2 times their annual salary, and high regrettable turnover often signals deeper issues with management, pay, or growth paths.
Does outsourcing reduce employee turnover?
For volume roles, often yes. Established outsourcing providers in markets like the Philippines and India invest heavily in retention because their P&L depends on it, and they typically post lower attrition than in-house equivalents in high-cost countries.
Want to see how outsourcing partners can stabilise your workforce and trim turnover costs? Browse verified BPO providers on the Outsource Accelerator directory.
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