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JL JobLabs

Behavioural · UK 2026

How to answer "Tell me about a time you failed"

Alex By Alex · 12-year UK recruiter · Updated April 2026

Interviewers also phrase it as:

  • "Describe a mistake you made"
  • "Tell me about a time things went wrong"
  • "When did you last fail?"

Why interviewers ask

Tests self-awareness, accountability, and growth orientation. The most-failed behavioural question because candidates either (a) refuse to name a real failure or (b) name a failure without ownership or learning. Strong answers name a real failure, take ownership without blame-shifting, and explain what you changed afterwards. Weak answers blame circumstances, name 'failures' that are actually successes, or skip the learning step.

Model answer

About [timeframe] ago at [company], I was responsible for [specific decision or project]. I made the call to [specific decision] because [reasoning at the time]. The outcome was [specific bad outcome — quantified if possible]. Looking back, the mistake was [specific judgement error — own it]. What I did afterwards was [specific corrective action]. The lasting change in how I work is [behaviour you've changed since]. I still think about it occasionally because [it influenced how you approach similar situations now].

What to avoid (common bad answer)

I failed when my team's project missed its deadline because the developers couldn't keep up with the timeline. We learned that we need better resource planning. (Blame-shifting to others, vague learning.) Or: My biggest failure is that I sometimes work too hard on details. (That's not a failure — that's a humblebrag.) Or: I haven't really had a major failure in my career. (Lack of self-awareness — disqualifying.) All three fail.

Structure of a good answer

  • 1 A real, specific failure with a concrete outcome
  • 2 Ownership — your decision, your judgement error, not the teams
  • 3 Honest reflection on what the mistake was
  • 4 Specific corrective action you took
  • 5 Lasting behaviour change since

Common mistakes

  • ✗ Disguising a success as a failure ('I worked too hard')
  • ✗ Blame-shifting to team, manager, or circumstances
  • ✗ Picking a failure too small to be credible
  • ✗ No ownership — describing the failure as something that happened to you
  • ✗ No learning — flags failure without growth

Recruiter pro tip

Prepare one real failure story before any interview. The candidates who land this question well have rehearsed a specific 90-second story where they fully own a real mistake. The candidates who fail this question are improvising and end up either (a) blame-shifting or (b) disguising. Pre-rehearsal is non-negotiable.

FAQ

How recent should the failure be? ▼

Within the last 2-3 years usually. Older failures suggest you haven't grown recently; brand-new failures might be too raw to discuss professionally.

How big should the failure be? ▼

Real but not catastrophic. A missed milestone or wrong technical call is fine; the time you got someone fired or lost a major customer is too much.

Should I mention the failure on my CV too? ▼

No. CVs show successes; interviews show self-awareness. Different surfaces, different content.

Related interview questions

"Tell me about a challenge you overcame"

Behavioural

"What's your greatest weakness?"

Strengths & Weaknesses

"How do you handle feedback?"

Behavioural

Browse all 48UK interview answer guides

Tell me about yourselfWhy do you want this role?Why this company?What's your greatest strength?What's your greatest weakness?Why are you leaving your current role?What are your salary expectations?Where do you see yourself in 5 years?Why should we hire you?Tell me about a challenge you overcameHow do you handle conflict at work?What motivates you?What questions do you have for us?What makes you a strong candidate?How do you handle stress and pressure?How do you prioritise your tasks?Tell me about a time you led a teamWhat's your management style?How do you handle feedback?Tell me about a time you disagreed with your managerTell me about a time you missed a deadlineWhy are there gaps in your CV?Tell me about a time you went above and beyondWhat's your biggest achievement?Describe your ideal work environmentTell me about yourself (recent graduate version)How would your colleagues describe you?Tell me about a time you handled ambiguityWhy now? (why are you looking now)How do you handle criticism?Describe yourself in three wordsTell me about a time you took initiativeHow do you handle deadlines?What do you know about our company?Why this industry?Tell me about a time you had to adapt to changeHow do you stay organised?Tell me about a time you influenced without authorityWhat's your dream job?How do you deal with difficult people at work?How do you define success?Tell me about a time you met a tight deadlineHow do you handle pressure?Tell me about a time you disagreed with a decisionWhat would your previous manager say about you?How do you stay current in your field?Tell me about a time you helped someone at work