Should I be honest in my exit interview?

From watching exit interviews go wrong in twelve years: the fundamental misunderstanding is that exit interviews are for the candidate. They're not. They're for the company's HR data. The HR person running the interview reports thematically (sometimes verbatim) to the manager you're leaving and sometimes to senior leadership. The 'fully confidential' framing is rarely fully true.

What to say. Keep it constructive, contained, and forward-looking. Two or three points maximum. 'The team is great and I learned a lot — particularly from [specific person]. The thing I'd flag for improvement is that the work-from-home policy created some friction for cross-team collaboration; I think a clearer hybrid framework would help. I'm leaving because the new role is a step up in scope that wasn't available here, and I think that's the honest reason rather than anything specific about the team.' That's the entire script.

What not to say. Specific complaints about specific people, especially your direct manager. Detailed grievances that you didn't raise during your tenure (they sound like sour grapes). Confidential information about the new employer or your future role. Salary comparisons (the new role pays more, your point being). Anything you wouldn't be comfortable seeing repeated to senior leadership.

Why the unfiltered version backfires. The HR person writes a summary. The summary often goes to your manager. Your manager is now your former manager, and their internal note about you (and any future reference they're asked for) is shaped by the exit interview content. 'They left bitter and called out the team' is a quiet flag against you for years. The recruitment industry is small; this travels in ways candidates don't expect.

When to skip the exit interview entirely. Some candidates choose not to do an exit interview, particularly if the relationship has been hostile or the legal exit is via settlement agreement. This is your right; UK law doesn't require you to participate. The polite framing: 'I'd rather wrap up with a clean handover and let my work speak for itself. I don't think the exit interview would add anything useful for either side at this point.' Most HR teams will accept this without pushing.

The genuinely confidential conversation. If you have constructive feedback you genuinely want to deliver — and it's not contaminated by anger or recent bad-news — consider asking for a 1:1 with your manager directly, before or after the exit interview, framed as 'a few thoughts you might find useful as I leave'. Direct feedback to one person is usually more useful than HR's filtered summary, and you maintain the relationship integrity. Just be sure you're delivering feedback for them, not for yourself.

Three months later. The honest feedback you want to give is almost always better delivered to a trusted ex-colleague over coffee three months after you've left. By then you have perspective. The relationship isn't being processed by HR. The conversation is genuinely between two professionals rather than an institutional data-gathering exercise. This is when most useful conversations about workplace experiences actually happen.