A framework and six worked examples to build a calm, honest answer, plus how to field the follow-up questions that come next.
By the end of this guide you'll have a short, calm answer to "Why did you leave your last job?" that states the facts, gives one clear reason, and turns the conversation towards the role you're interviewing for. You'll also know how to handle the follow-up questions that usually arrive straight after it.
Use the framework and the six worked examples to draft your own version, then check it against the list at the end before you rehearse it out loud.
Why interviewers ask it
Three competencies are being tested, and none of them is your loyalty.
The first is judgement. They want to know whether you leave jobs for considered reasons or on impulse, because that predicts how long you'll stay and how you'll behave when this role gets difficult.
The second is self-awareness and accountability. If something went wrong, can you describe it without blaming everyone in the building? Interviewers listen for whether you name your own part in a situation and what you changed afterwards.
The third is professional discretion. How you talk about a former employer is a live sample of how you'll talk about this one. Anyone who trashes a previous manager in an interview is showing what they'd say about their next one.
There's also a practical check: your answer should match your application, your dates and anything a reference would confirm.
How to build your answer
Use the FRAME method. It keeps the answer short, honest and pointed forward, and it works whether you resigned, were made redundant or were let go.
- Fact — state the move in one neutral sentence. Say what happened and when: you resigned, the contract ended, the site closed, the role was made redundant, you were dismissed. Leading with the plain fact stops the interviewer guessing and stops you rambling. If the fact is unflattering, saying it first actually lowers the temperature.
- Reason — give one driver, not four. Pick the single most credible reason: no route to the next level, the work changed shape, a relocation, a restructure, a decision to move into different work. A stack of reasons sounds like a cover story; one specific reason sounds like a decision.
- Acknowledge — own your share, if there is one. If performance, fit or a clash played a part, name it in a sentence and say what you'd do differently. This is where accountability is scored. If there's genuinely nothing to own, skip this step rather than manufacturing a flaw.
- Momentum — show what you've done since. Mention the handover you finished, the notice you worked, the course, the contract work, the caring responsibility you managed. This answers the unspoken question about gaps and about whether you left responsibly.
- Endpoint — land on this role. Finish with what you're looking for next and tie it to something concrete about the job in front of you. The last sentence should be about them, not about your old employer.
Keep the whole thing to roughly 20 to 40 seconds spoken. Say it out loud until the neutral facts sound neutral, then stop rehearsing — over-polished answers on this question sound evasive.
Frequently asked questions
When in the interview will this come up, and what if it's the first question?
It usually arrives in the first five minutes, right after "tell me about yourself", or at the point where the interviewer walks through your CV dates. Screening calls with a recruiter almost always include it, and a hiring manager will often ask it again later in their own words — so keep your two versions consistent.
If it comes first, resist the urge to use it as your whole introduction. Give the short version — fact, reason, forward — and let the interviewer decide whether to dig. You will have other chances to sell yourself, and a brisk answer here signals that leaving wasn't dramatic.
How long should the answer be?
Aim for 20 to 40 seconds, or three to five sentences. That's long enough to be specific and short enough that the interviewer doesn't start reading meaning into the length.
The exception is a situation that genuinely needs context: a dismissal, a long gap, or three short jobs in a row. Even then, add one or two sentences, not a paragraph. If you find your draft running past a minute, it's usually because you're justifying rather than explaining. Cut the justification and keep the facts.
What follow-up questions should I expect?
Most commonly: "Did you raise it with your manager before you decided?", "What would have made you stay?", "Would you go back?", and "Can we speak to your last employer?"
Prepare a one-line answer to each. "Did you raise it?" is testing whether you deal with problems directly, so a yes with a short description of that conversation is far stronger than a no. "What would have kept you?" is a trap only if you answer with money or a grievance — answer with scope, progression or the work itself. On references, be straightforward about who can be contacted and when, including if it needs to wait until after an offer.
What if I was fired, or asked to leave?
Say it in your own words before they find out another way, keep it factual, and move straight to what you took from it. A workable shape is: what happened, what your part in it was, what you changed, and a sentence on why this role fits better. Avoid re-litigating the decision, even if you think it was unfair.
If there was a formal process, a settlement or anything with legal implications, check what you are permitted to say before the interview — an employment adviser or your union can tell you where the line is. Interviewers hire people who have been let go all the time; what they screen out is defensiveness.