The wrong senior hire is the most expensive, hardest-to-undo mistake a leader can make — and most of the cost is invisible until it’s too late. Here it is, line by line.
Four components: compensation paid during a tenure that did not work out; the value above salary a strong hire would have delivered, scaled by how far short this one fell; hiring and onboarding twice; and severance. Deliberately conservative — it excludes morale, lost customers and stalled decisions.
The through-line: a bad senior hire is rarely a judgement failure — it’s usually the result of a role left open too long, and the pressure to settle. Figures in Canadian dollars.
Harder to price than a vacancy, and considerably larger. The U.S. Department of Labour puts a failed hire at roughly 30% of first-year salary; for senior and technical roles, industry estimates commonly run from 50% to 150%, and higher where the person made decisions that outlast them.
A junior hire who underperforms costs their salary and some supervision. A senior one sets direction — a design approach, a delivery method, who else gets hired — and those decisions keep costing after they leave. One percentage of salary cannot cover both.
Errors are carried by projects rather than quarters. A wrong technical lead can produce rework, a failed inspection, a schedule slip or a claim — each with a contractual price, landing months after the decision. The recruitment cost is rarely the largest line.
Not assessment failures. A role that stays open too long creates pressure to settle for the best available rather than the right person, and settling is what produces the mis-hire. If you have not priced that upstream pressure, the vacancy calculator is where the problem actually starts.
The U.S. Department of Labour puts it at about 30% of first-year salary. Industry estimates run higher for senior and technical roles — commonly 50% to 150%, and higher again where decisions outlast the tenure. Direct costs are easy to count; indirect ones are not.
Add four things: compensation paid during a tenure that did not work, the productivity gap between what a strong hire would have delivered and what this one did, the cost of running the hire twice, and severance or exit. The second is usually the largest and the one nobody records.
Because the damage is decisions, not output. A junior hire who underperforms costs their salary and some supervision. A senior hire who underperforms sets direction — a design approach, a delivery method, who else gets hired — and those choices keep costing after the person has gone.
More than the generic models suggest, because errors are carried by projects rather than quarters. A wrong technical lead can produce rework, a failed inspection, a schedule slip or a claim, and the consequence lands with a contractual price attached. The recruitment cost is rarely the largest line.
Deliberately, quite a lot. It excludes team morale, lost clients, stalled decisions and reputational damage, because those cannot be estimated honestly from four inputs. The figure is conservative by design.
Most bad hires are not assessment failures — they are process failures. A role that stays open too long creates pressure to settle, and settling is what produces the mis-hire. Measuring how long roles stay open, and why, catches more of them than another interview round does.
No. The calculator runs entirely in your browser, nothing is submitted, and we never see the numbers you enter.
This page counts what one wrong hire costs. RIQIndex™ measures the recruitment behind them — and gives you a Recruitment Health Score: where you stand today, which gaps are costing you, and which are worth fixing first. No pass, no fail.
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