Robert Half's 2025 Salary Guide estimates the total cost of a failed senior hire at 3-5x annual salary. For an $80,000 role, that's $240,000 to $400,000. For a $120,000 engineering lead, you're looking at $360,000 to $600,000.
Most companies see only the tip of the iceberg. They count the recruiter fee and severance. They don't count the rest, and the rest is where the real money goes.
The full cost breakdown
| Category | Estimated range |
|---|---|
Recruitment & search Agency fees, job boards, recruiter time, interview coordination | $15,000 - $40,000 |
Onboarding & training Ramp-up time (typically 3-6 months), trainer hours, tooling | $10,000 - $25,000 |
Lost productivity Delayed projects, team velocity drop, decisions deferred | $40,000 - $80,000 |
Team disruption Manager bandwidth, morale cost, knowledge transfer overhead | $30,000 - $60,000 |
Severance & legal Severance pay, potential legal exposure, HR time | $15,000 - $45,000 |
Re-hire cycle Running the full process again while the role stays open | $30,000 - $60,000 |
Opportunity cost Revenue impact of delayed roadmap, missed market windows | $100,000 - $200,000 |
| Total (mid-range) | $240K - $510K |
The costs companies miss most often
Finance teams are comfortable counting hard costs: recruiter fees, job board spend, severance. The costs that are consistently undercounted are the soft ones, which paradoxically tend to be the largest.
Lost productivity is compounding
A failed senior hire doesn't just contribute zero output. They often subtract from team output through context-switching, morale drag, and the projects they blocked or delayed. Across a 6-12 month tenure, the productivity loss typically exceeds the salary paid.
Manager bandwidth is expensive
Managing a struggling employee consumes an outsized share of a senior manager's time, often 20-40% of their week during the last few months. At senior compensation levels, that's $2,000 to $5,000 per week in absorbed cost.
The re-hire premium
Roles that have turned over recently are harder to fill. Candidates ask why the role is open again. Your best candidates, who have choices, become warier. You often pay a premium or settle for a weaker hire to fill the gap quickly.
What prevention actually costs
Structured, evidence-based evaluation costs a fraction of a single bad hire. If it prevents one failed senior hire, it pays for itself many times over at the low end of the cost estimate.
Compare that to the alternative: recruiting agency fees typically run 20-25% of first-year salary. For a $120K role, that's $24,000 to $30,000, paid regardless of whether the hire works out.
Structured evaluation is not a cost center. It's the most cost-effective line item in your hiring budget.
Sources
- Robert Half, 2025 Salary Guide and Workplace Insights Report
- SHRM, 2024 Talent Acquisition Benchmarking Report
- Gallup, State of the American Workplace (2023)