The Real Cost of a Bad Hire in the UK (2026)
Everyone talks about the cost of a bad hire. The numbers most commonly cited are between 30,000 and 50,000 pounds. But where do those numbers actually come from? And are they accurate?
The honest answer is that the real cost is almost certainly higher than most employers realise. Here is the full breakdown.
The direct costs
Recruitment fees
If you used a recruitment agency, the fee is typically 15 to 25 per cent of the first year salary. For a role paying 35,000 pounds, that is between 5,250 and 8,750 pounds. Gone.
Advertising
Job adverts on major boards cost between 200 and 500 pounds per listing. Most roles require multiple listings across multiple platforms. Typical spend: 500 to 1,500 pounds.
Training and onboarding
The average UK employer spends between 1,000 and 3,000 pounds on formal training for a new hire. Add the cost of informal training: the time other team members spend showing the new person how things work, answering questions, and correcting mistakes. For a typical office-based role, this adds another 2,000 to 5,000 pounds in lost productivity from the people doing the training.
Salary paid for work not delivered
A bad hire who leaves or is dismissed at month four has been paid four months salary. For a role at 30,000 pounds per year, that is 10,000 pounds. During their notice period, productivity typically drops to near zero. That is another month of salary with no meaningful output.
The hidden costs
Management time
A struggling employee consumes disproportionate management time. Performance conversations, additional supervision, documentation of concerns, meetings with HR. A reasonable estimate is 5 to 10 hours per week of management time diverted to dealing with the problem. Over three months, at an average management hourly rate of 30 pounds, that is between 1,800 and 3,600 pounds.
Team morale and productivity
When one person is underperforming, the rest of the team picks up the slack. They work harder, they become frustrated, and some of them start looking for other jobs. Research consistently shows that a single bad hire reduces the productivity of the immediate team by 10 to 15 per cent. For a team of five earning an average of 30,000 pounds, a 10 per cent productivity drop costs 15,000 pounds per year.
Customer impact
If the bad hire is in a customer-facing role, the damage extends to client relationships. Lost customers, damaged reputation, reduced repeat business. This cost is almost impossible to quantify but is often the most significant of all.
The new cost: tribunal risk under ERA 2025
From January 2027, add uncapped tribunal compensation to the list. Under the Employment Rights Act 2025, employees will have unfair dismissal protection from day one. The statutory compensation cap is being removed.
A tribunal award for unfair dismissal currently averages around 13,000 pounds, but without a cap, high-earning employees could claim significantly more. A senior hire on 80,000 pounds who is dismissed without proper documentation could claim 12 months salary or more. That is 80,000 pounds on top of all the other costs.
The total
For a mid-level hire on 35,000 pounds:
Recruitment fees: 5,000 to 8,750 pounds. Advertising: 500 to 1,500 pounds. Training and onboarding: 3,000 to 8,000 pounds. Salary paid for unproductive work: 10,000 to 12,000 pounds. Management time: 1,800 to 3,600 pounds. Team productivity loss: 7,500 to 15,000 pounds. Potential tribunal claim from 2027: 13,000 to 80,000 pounds or more.
Total without tribunal: 27,800 to 48,850 pounds. Total with tribunal: 40,800 to 128,850 pounds.
The commonly cited figure of 30,000 to 50,000 pounds is at the lower end. For senior roles, or when tribunal claims are involved, the true cost can easily exceed 100,000 pounds.
How to reduce the cost
The cheapest way to deal with a bad hire is to not make one in the first place. That sounds obvious, but most employers are still relying on CVs and interviews, both of which are poor predictors of job performance.
Scenario-based assessment, where candidates complete realistic work tasks specific to the role, has been shown to be significantly more predictive than traditional methods. It also creates the documented evidence trail that ERA 2025 will require.
The cost of a thorough pre-hire assessment is a tiny fraction of the cost of a bad hire. The question is not whether you can afford to assess candidates properly. The question is whether you can afford not to.
PRODICTA starts at 49 pounds per month. One prevented bad hire pays for 10 years of subscription. Try the free risk report tool at prodicta.co.uk.