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Exit interviews have a poor reputation, much of it earned. Run badly, they are awkward conversations between a leaver who has nothing to gain by being honest and a manager who has nothing to gain by hearing the truth — and they produce nothing useful for the business.

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Run well, they are one of the cheapest pieces of research available to any SME. The leavers know exactly what is broken, and they will often say it more clearly than anyone still in the building. This guide covers how to run them properly.

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Why exit interviews matter

Exit interviews answer two questions that nothing else does as honestly: why did this person actually leave, and what would have made them stay. The answers, aggregated across multiple leavers, surface the systemic problems — pay, scheduling, management, progression, culture — that drive avoidable turnover.

One exit interview is anecdote. Twenty are data.

When to run the interview

The standard pattern is to hold the interview in the leaver's last week, after notice has been served and the new role is confirmed. By that point the leaver has the least to gain from being diplomatic and the most to gain from being honest. Some businesses run a follow-up six weeks after the leaver has started their new role — the candour is often even higher then, because the comparison with the new employer is fresh.

Who should run it

The line manager is rarely the right person. The conversation is too loaded — the leaver may be leaving because of the manager, and even if not, candour is constrained. HR, a skip-level manager, or an external HR partner usually produces better data.

For very small SMEs without HR, consider rotating the conversation to a second senior manager who has not directly managed the leaver. The change in interlocutor unlocks honesty.

Make confidentiality explicit

Set the rules at the start. Confirm that what the leaver says will be aggregated into themes for management; that anything tied to a person will not be shared without explicit consent; and that what is said will not affect the reference. The conversation works only if the leaver believes you.

Ten exit-interview questions that matter

The structure matters more than the precise wording. The ten questions below cover the territory consistently:

• What was the main reason you decided to leave?
• What was the trigger that turned thinking-about-it into actually-leaving?
• What did you enjoy most about working here?
• What frustrated you most?
• How would you describe the management you experienced?
• How fair did the rota and scheduling feel?
• How well were you developed — what did you learn here?
• What would have made you stay?
• What three things would you change about how this place is run?
• Would you recommend us to a friend? Why or why not?

Listen properly to each answer, take notes in the leaver's own words, and resist defending. The point is data, not debate.

Listen for systemic vs. personal

As you take notes, sort what you hear into two buckets: systemic issues (rota patterns, pay structure, training, management practice) and personal issues (specific manager behaviour, specific incidents). Both matter; they require different responses.

Aggregate the data over time

The single biggest mistake SMEs make is treating each exit interview as a one-off conversation. Build a simple log — date, role, tenure, top two reasons — and look at it every quarter. Patterns emerge fast: by the time you have ten or twelve exits in the log, the structural issues are usually obvious.

Act on what you find

Exit interviews that produce no change are a waste of everyone's time. Cluster the findings into themes, choose one or two to act on each quarter, and tell the team what changed and why. Most retention improvements come from feeding exit-interview themes back into the operating model — fairer scheduling, better onboarding, clearer progression, manager training.

For shift-based teams, the most common improvement areas are scheduling fairness, holiday handling and progression. Annaizu's rota and workforce management software and employees portal address the first two directly — making the operational fixes both visible and easy to roll out.

Common mistakes to avoid

• Running the interview as a tick-box at the end of someone's last day with no follow-up.
• Letting the line manager who may have been part of the problem run the interview.
• Defending or arguing during the conversation.
• Failing to keep records that allow patterns to surface.
• Hearing the same reason ten times and changing nothing.

What about leavers who do not want a conversation?

Some leavers will not want a sit-down interview. Offer an asynchronous alternative — a short, structured form covering the same ten questions — so the data is captured regardless. The format matters less than the discipline of asking and listening.

Pair exit interviews with stay interviews

Exit interviews tell you why people left. Stay interviews tell you why people are still there — and what would change that. Both are needed; together they cover the whole retention picture.

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Conclusion

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Exit interviews are one of the cheapest and most under-used pieces of research a UK SME has. Run them properly — with the right interviewer, real confidentiality, ten well-chosen questions and a discipline of acting on the patterns — and they pay back many times over in retention improvements. Combine them with reliable HR software and fair rota planning, and most of the systemic causes of turnover have nowhere to hide.

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