Onrec Explores / Onboarding & retention

You’ve hired the right person. Why do they leave in the first 90 days?

An accepted offer is only the beginning. Keeping a new hire means turning the promises made during recruitment into everyday experience. Where does that break down, and what can employers do in the first 90 days?

Published 1 November 2026

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Consider this illustrative scenario: a new starter accepts a role after a thoughtful interview process. The manager described a supportive team, room to learn and clear priorities. On arrival, the equipment is ready and the induction is booked. But nobody can explain what a good first month looks like. The manager is busy. Questions are saved for a meeting that keeps moving.

When someone struggles or leaves, it is tempting to revisit the hiring decision. But what about the conditions they encountered after joining?

The previous Onrec Explores examined how employers can assess genuine ability behind a polished application. That question continues after appointment. Hiring someone with the right capabilities does not remove the need to explain the job, provide support and make expectations achievable.

The CIPD’s induction guidance links effective induction with helping employees settle in, understand their responsibilities and access what they need to perform. It also identifies reducing the risk of early attrition as a benefit. The practical challenge is translating that intention into an experience that works for each new starter.

The promise before day one

Start with the expectations created during recruitment. What did the employer say about the work, support, progression, working arrangements and pace? Which of those statements will a new colleague be able to recognise in their first week?

For Azmat Mohammed, Director-General of The British Institute of Recruiters, the disconnect can begin before the candidate has even accepted. “The gap opens in the last ten minutes of the final interview, when the role is sold rather than described,” he says.

“The candidate hears a flexible pattern, a manager who develops people and a first project worth doing, and on day one meets the rota, a manager who is on leave and a laptop that has not arrived. Nobody lied. Nobody wrote it down either.”

His proposed remedy is a shared, one-page note before the offer is accepted, setting out the agreed hours and location, the manager, the purpose of the first ninety days and the date of the first review. The recruiter gives the same note to the candidate and hiring manager, both confirm it, and it is kept with the interview notes. That gives the onboarding team something concrete to work from, rather than relying on separate recollections of what was promised.

That shared understanding depends on knowing the role well enough to describe it. Emily Formby, Divisional Director, Charity Leadership Recruitment at Charity Recruit, sees a particular risk when charity boards appoint a chief executive. Trustees are not involved in day-to-day operations, she explains, and may not know the specifics of the role. Without enough time spent scoping the job and explaining it consistently in adverts and interviews, the candidate can arrive expecting something different.

“The most useful thing is spending real time with the hiring manager or board to understand the role properly, so it can be described honestly to candidates from the first conversation,” Formby says.

That work continues throughout the search. She recommends asking candidates about their feedback and concerns, then taking those questions back to the employer for answers. Those answers need to reach the onboarding team too, so concerns resolved during recruitment are not lost when the candidate becomes an employee.

Even a clearly described role can disappoint if an employer later changes what was agreed. In her work placing HR professionals, Jo Thompson, Divisional Director at HR Recruit, part of Exec Recruit Group, sees the gap emerge within the first six to eight weeks. She gives the example of a new starter promised two days working from home who then finds the business allows only one. A joining plan needs to reflect those agreements, and any proposed changes need an honest conversation.

Pre-start contact can answer straightforward questions: where to arrive, who will meet them, what their first week involves and who can help if plans change. It should also leave room for questions, without turning the period before employment into a list of unpaid work tasks.

The manager makes it real

Once the person starts, the manager has to turn those agreements into a workable first week. A completed induction checklist tells an employer what has been delivered. It does not, by itself, show what the person has understood or whether they feel able to ask for help. A welcome presentation cannot answer every question that emerges when someone begins the work.

Managers can make expectations more concrete by agreeing an initial task, explaining how it will be reviewed and protecting time to discuss it. For a new employee, “be proactive” becomes more useful when paired with examples of what they can decide independently and when they should check with someone.

Those conversations also offer a chance to examine the support provided. Before treating a missed expectation as a capability problem, ask whether the instruction was clear, the tools were available and the person had an opportunity to practise. That does not mean every appointment will work out. It means the assessment should include the conditions in which the work was attempted.

Confidence needs somewhere to grow

Starting work involves learning more than a job description. There are unfamiliar systems, relationships and unwritten conventions. For someone entering their first workplace, even knowing how to ask a question can require explanation. Experienced hires may need that help too, particularly when moving between sectors or working arrangements.

The support should reflect the individual: which relationships, systems or expectations are unfamiliar, and where would an introduction or explanation help? Age or career stage alone cannot answer those questions.

For Thompson, everyday support needs more thought than simply assigning a buddy. She recommends a go-to person who can offer direction, explain the company’s ethos and quirks, and has the respect of colleagues. Clear communication before the start date and a robust onboarding plan provide the foundation; a trusted colleague helps the new starter navigate what follows.

“People also need to know it’s fine to make mistakes when they first join a business, because everything is new and they’re finding their feet,” she says. An induction needs to make that permission clear, alongside the standards the person is working towards.

Recognition has a place in that experience, but it should be specific enough to mean something. A manager explaining why a first piece of work was useful offers different information from a generic welcome message. Neither a gift nor an enthusiastic introduction can resolve unclear priorities or an unmanageable workload.

Who owns the handover?

Making that support reliable takes coordination. Recruiters, HR, IT, learning teams and line managers may each complete their part while a new employee still experiences gaps between them. A useful question is who follows the whole journey, including the points where responsibility changes hands.

Automation can help organise reminders, information and routine tasks. Its value should be judged partly by what it enables people to do next. If a system records that a new starter has a concern, who sees it, how quickly do they respond and how does the employee know it has been heard?

The same principle applies to recruitment partners. Mohammed recommends making ownership explicit: the manager takes responsibility for week one and the thirty-day conversation, while the recruiter checks whether the experience matches the agreement.

“The recruiter, agency or in-house, calls both sides at day thirty and asks the same question, is this the job we described. If the answers differ, that is the problem to fix, and it is cheaper in week five than in month five.”

The value of that check-in lies in comparing the two accounts and acting on the gap. Booking a follow-up is only the first step; someone still needs to own the response.

Measure what changed, not just who stayed

Those check-ins also give employers something to learn from. Retention deserves attention, but one number cannot explain an entire joining experience. Someone may stay while struggling; another person may leave for reasons the organisation could not reasonably change. The first 90 days are a useful lens for this feature, rather than a universal deadline by which every employee should be fully effective.

An employer reviewing a change could compare groups of new starters with comparable roles and start dates, record when departures occurred and examine what employees and managers reported along the way. Role, location, working hours and recruitment changes can affect the comparison. A twelve-month retention figure answers a different question from the proportion leaving in the first three months.

Useful conversations might ask whether the role matches expectations, whether the employee knows what matters most and whether they can access help. The response matters as much as the survey: what changed after somebody identified a problem?

The first 90 days test both the appointment and the employer’s promises. Clear expectations, time with a manager and someone to turn to make those promises tangible. When a new hire leaves early, the review should ask two questions: was this the right appointment, and did we give it a fair chance to succeed?

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