Employee Turnover

Employee turnover measures the rate at which employees leave an organization — encompassing both voluntary departures (resignations) and involuntary ones (terminations, redundancies) — over a defined period. It is one of the most financially significant HR metrics because each departure triggers replacement costs, productivity gaps during transition, and potential knowledge loss that can take months to recover. The key analytical practice is decomposing the overall turnover number into its components: voluntary versus involuntary, by department and manager, by tenure cohort, and by performance level — since each decomposition tells a different story. High involuntary turnover suggests selection or performance management problems; high voluntary turnover among high performers is the most damaging and most urgent pattern, often indicating compensation, management, or opportunity gaps that a superficial overall turnover number masks.