Organization Design

The Cost of a Bad Hire, Honestly Calculated

Build the number from components you can actually observe — six of them — instead of quoting a multiple of salary that nobody can trace to a source, and then use it to set a defensible budget for the hiring process.

  • Intermediate
  • 14 min total
  • 13 chapters

What decision this helps you make: What a hiring mistake really costs in your business, how much that justifies spending on assessment and onboarding, and how long you should wait before acting on one.

What this topic is

The cost of a bad hire is the total economic loss from a hire who does not work out, built as a sum of six observable components: the recruiting spend, the compensation paid net of value delivered, the manager and team time consumed, the vacancy after the exit, the collateral damage to customers or colleagues, and the cost of the exit itself. Built that way it is a number you can defend. Quoted as a multiple of salary from an article, it is a number you cannot.

Why it matters

Almost every argument about hiring is really an argument about this figure. Is a paid work sample worth the money? Is a six-week loop too slow, or not thorough enough? Should you exit someone at month five or wait for the review cycle? Should the recruiting budget go up or the onboarding budget? None of those questions has an answer until somebody has costed the mistake, and in most companies nobody has — so the arguments are settled by whoever is most senior or most recently burned.

Who should learn it

Managers who have to justify spending on hiring, founders deciding whether to use an agency, anyone sitting on a hire that is not working and trying to decide what to do, and finance partners who have been asked to sign off a recruiting budget with no model behind it.

What you will understand

  • The six components, and which ones are usually forgotten or double-counted
  • A full worked example, from compensation paid through to the second search
  • Why the popular salary multiples are unsourced and what to use instead
  • How the number changes by role type, and why a bad manager costs several times a bad individual contributor

Prerequisites

Common misconception

"A bad hire costs about 30% of their first-year salary." This figure circulates endlessly, is usually attributed to a government department, and is very hard to trace to any published study. It is also, on any honest reckoning, far too low: 30% of salary will not cover the recruiting fee and the severance, let alone nine months of compensation against a fraction of the expected output. The opposite misconception is just as damaging — that because the number is large, every possible check is justified. A slow, defensive process has its own cost, it is paid on every hire rather than on the ones that fail, and it is the reason some companies with excellent hiring processes cannot hire anyone.