Calculator/By Company Size
Employee Turnover Cost by Company Size
A 10-person startup losing 2 people has a fundamentally different problem than a 5,000-person enterprise losing 500. The cost per departure, the systemic impact, and the optimal response strategy all change with scale.
How 15% Turnover Scales Across Company Sizes
Assuming 15% annual turnover, $100,000 average salary, and 1.5x replacement cost multiplier:
| Company Size | Annual Departures | Annual Cost | % of Headcount Lost |
|---|---|---|---|
| 20 employees | 3 | $450,000 | 15% |
| 100 employees | 15 | $2,250,000 | 15% |
| 500 employees | 75 | $11,250,000 | 15% |
| 2,000 employees | 300 | $45,000,000 | 15% |
| 10,000 employees | 1,500 | $225,000,000 | 15% |
Startup (1-25 employees)
Typical turnover rate
20-35%
Cost per departure
1.5-2.5x salary (relative impact)
Total annual cost
$50,000 to $200,000
HR infrastructure
None or minimal. Founder handles hiring.
Biggest risk
Single point of failure. One departure can lose 10-20% of company knowledge.
Most effective strategy
Equity alignment, mission clarity, and founder-as-manager quality
At a 10-person startup, losing 2 people means 20% of your institutional knowledge walks out the door. There is no bench strength, no documented processes, and no dedicated HR function to manage the transition. The founder or a co-founder typically spends 30-50% of their time on replacement hiring, pulling them away from product and revenue. The cost in terms of lost momentum is often greater than the direct financial cost.
Small Business (26-100 employees)
Typical turnover rate
15-25%
Cost per departure
1.0-1.8x salary
Total annual cost
$200,000 to $900,000
HR infrastructure
HR generalist or outsourced. Limited hiring infrastructure.
Biggest risk
Tribal knowledge concentration. Key processes often live in one person's head.
Most effective strategy
Competitive compensation (market benchmarking), documented processes, and career ladders
Small businesses typically lack dedicated recruiters, structured onboarding, and performance management systems. This means every aspect of the replacement cycle takes longer and costs more per-event than it would at larger organisations. The advantage is that small teams can respond quickly with targeted retention actions (a raise, a title change, a flexibility arrangement) without the bureaucracy that slows larger companies.
Mid-Market (101-500 employees)
Typical turnover rate
12-20%
Cost per departure
1.0-1.5x salary
Total annual cost
$600,000 to $3.8M
HR infrastructure
Dedicated HR team. ATS in place. Some process documentation.
Biggest risk
Transition from startup culture to professional management creates friction and departure spikes.
Most effective strategy
Manager quality investment, clear career frameworks, and retention dashboards
Mid-market companies face a specific challenge: they have outgrown the startup model where the founder knows everyone, but they have not yet built the HR infrastructure of an enterprise. This gap means retention problems emerge faster than systems can address them. The companies that navigate this transition well invest in people analytics, manager training, and career framework design before the problems become visible in the turnover data.
Enterprise (501-5,000 employees)
Typical turnover rate
10-18%
Cost per departure
1.0-2.0x salary
Total annual cost
$4M to $18M
HR infrastructure
Full HR function. HRIS, ATS, learning management, compensation benchmarking.
Biggest risk
Department-level turnover spikes that cascade across the organisation. One bad manager can create a 40% turnover pocket.
Most effective strategy
Department-level analytics, manager accountability, internal mobility programmes
Enterprises have the infrastructure to manage turnover systematically but often lack the agility to address problems quickly. By the time a department's turnover spike appears in quarterly reporting, the damage is done and the contagion effect is underway. The most effective enterprise retention programmes push accountability to the manager level and measure retention as a first-class performance metric alongside revenue and delivery targets.
Large Enterprise (5,000+ employees)
Typical turnover rate
8-15%
Cost per departure
1.0-2.5x salary
Total annual cost
$20M to $100M+
HR infrastructure
Global HR operations. Centre of excellence for talent management.
Biggest risk
Systemic costs that are invisible at the individual level but enormous in aggregate. A 1% change in turnover rate at 10,000 employees represents 100 additional departures.
Most effective strategy
Predictive analytics, internal talent marketplace, structural flexibility, and competitive total rewards
At large enterprise scale, turnover is a logistics and financial challenge as much as a people challenge. A 1% improvement in retention at a 10,000-person company with average salary of $100,000 and a 1.5x replacement multiplier saves $15M per year. These numbers justify significant investment in retention infrastructure, but the size of the organisation means changes take quarters or years to implement, and attribution of improvement to specific interventions is difficult.