Search "cost of a bad hire" and you'll find the same formula everywhere: some multiple of first-year salary, usually cited back to a decades-old figure that's been repeated so often nobody checks it anymore. It's a reasonable starting point for an individual contributor. It badly undercounts a bad management hire, because it only prices the manager's own salary and replacement — not the team underneath them.
A struggling IC is a contained problem. A struggling manager is a distributed one: it shows up as slower delivery across their whole team, as your best performer's LinkedIn going quietly active, as the two people who transfer out the moment a lateral opens up. None of that shows up in a "1.5x salary" number.
01Where the real cost actually accumulates
Think of the cost as a waterfall, not a single number. The manager's own severance and replacement search is usually the smallest piece. The larger pieces are what happens to the team they were running while the problem plays out — typically a slow-motion sequence of lost output, then lost people, then the cost of replacing those people too.
The bars above aren't measured from a published study — they're a relative shape, drawn from where practitioners in HR and TA consistently say the surprise costs show up: not in the manager's own exit, but in who leaves after them. The calculator below lets you put your own numbers against that shape.
Recruiter's note If you're only tracking the cost of replacing the manager, you're pricing the smallest line item and ignoring the largest one.
02Build your own number
Every generic "cost of a bad hire" calculator uses someone else's assumptions. This one uses yours. Enter your team's real numbers — it recalculates as you type, and nothing is sent anywhere.
Bad management hire cost estimator
Live, local, yoursIllustrative model, not a benchmark: it's built from commonly used rules of thumb (35% severance/search cost, 50% backfill cost per departure) applied to the inputs you enter, so you can see which lever — team size, drag, or attrition — actually drives your number.
03Why the manager-specific number changes the decision
Once the team-drag and attrition lines are visible, two things usually change. First, the case for moving faster on an underperforming manager gets a lot stronger — the cost of waiting another quarter isn't just their salary, it's compounding drag on everyone reporting to them. Second, it reframes what you're willing to spend on getting the hire right the first time: a more thorough interview loop, a paid case study, extra reference calls — all of it is cheap against the number above.
04What actually moves this number down
- Catch it earlier. Every month between "this isn't working" and acting on it adds directly to the drag line.
- Ask the team, not just the manager, how it's going. Regretted attrition is usually visible two or three months before someone resigns, if anyone's asking.
- Reduce the odds of the miss in the first place. A tighter evaluation loop at the hiring stage — see Field Note 01 — costs a few extra days. This does not.