HR Glossary
Attrition Rate
The percentage of employees who leave an organization over a given period.
Definition
Attrition rate measures the proportion of employees who exit a company — voluntarily or involuntarily — over a specific timeframe, usually calculated monthly or annually as a percentage of total headcount.
Why It Matters
It's one of the most-watched HR metrics, since rising attrition is often the earliest signal of deeper engagement or compensation problems.