Quality of hire measures how much value a new employee actually delivers, typically assessed through a mix of job performance and retention over time. It’s widely considered the hardest recruiting metric to pin down, since no single standardized formula exists the way it does for cost per hire.

Why it’s genuinely hard to measure

True performance and fit often can’t be judged for six to twelve months or longer, especially for senior roles, so organizations lean on faster proxies instead: a 90-day performance rating, a hiring manager satisfaction score, retention at the one-year mark, and sometimes time to reach full productivity. Each proxy has a real weakness. Performance ratings can be inconsistent manager to manager. Retention as a stand-in is confounded by factors outside the hire’s control, a genuinely strong hire poorly served by weak onboarding or a poor manager may leave, which gets counted as a quality-of-hire failure even though the hiring decision itself was sound. Most organizations end up building a composite, weighted index combining several of these proxies rather than relying on one number alone.

Frequently asked questions

Is quality of hire the same as quality of slate?

No. Quality of slate looks at the applicant pool before a hire is made, a leading indicator. Quality of hire is a lagging, post-hire outcome measure.

Can quality of hire be measured right after joining?

Only roughly, early signals like onboarding engagement or 90-day performance offer a first read, but the fuller picture usually takes longer to emerge.

What’s the single best proxy to use?

There isn’t one universally best proxy, which is exactly why most organizations combine several rather than picking just one.

Track it with the Quality of Hire Calculator, and see how it relates to cost per hire.