Someone resigned in the heat of an argument. Does it count?

25th September 2026

The shouting stops, they say they are done, they walk out, and the door closes. Ten minutes later you are working out who covers Thursday and wondering whether you have lost an employee or acquired a problem. Usually it is the second one. A resignation is a legal act rather than a sentence said loudly, and what you do in the next two days matters more than anything either of you said in the argument.

What you heard probably is not a resignation yet

For words to end someone’s employment they need to be clear and they need to be meant. “I quit”, shouted across a stockroom during a row about the rota, is not obviously either.

The government recognises the situation by name. Its guidance on handing in your notice says that if you resign in the “heat of the moment”, for example during an argument, and you change your mind, you should tell your employer immediately. That is written for the employee, but it tells you something useful as the employer: a resignation given in a row is a recognised category, not an odd excuse somebody has invented after the fact.

Acas points the same way. Its guidance for employers notes that someone resigning might have made a sudden decision because their state of mind was affected by another factor, like a health condition or bereavement, and asks you to be understanding if they want to withdraw it.

Neither source gives you a test for when angry words amount to a resignation, and nothing on Acas or gov.uk sets one out. What both do tell you is that acting on those words within the hour, when you could see the person was upset, is the weakest possible ground for saying the employment ended by their choice.

Do nothing for 48 hours, then put it in writing

There is no cooling off period in law. This is not a right you are granting them. It is you protecting yourself, and it costs nothing.

For those two days, do nothing irreversible. Do not issue a P45, do not run a final payslip, do not take them off the rota beyond covering the shifts in front of you, do not announce it, do not ask for keys back, and do not advertise the job.

Then write to them, short and flat in tone. Something like: during our conversation on Tuesday you said you were leaving, and I want to be certain before I act on it. If you are resigning, please confirm in writing by Friday and tell me what you want your last working day to be. If you did not mean it, do nothing and I will see you on your next shift.

That letter gives them a way back that does not require an apology, which is usually what is really blocking them, and it gets you a dated document either way. If this reaches a tribunal, it will be the most useful thing in your file.

“You cannot reject a resignation” is true, and often misread

Acas says it flatly: you cannot reject an employee’s resignation. That is about a real resignation, and employers read two things into it that are not there. It does not mean every angry sentence counts as one, and it does not mean you have to act immediately.

The mirror image catches people out too. Your employer does not have to accept your request to withdraw your resignation, as Acas puts it to the employee. You are asked to offer an informal chat and to be as understanding and flexible as possible, which is guidance rather than an obligation to take somebody back.

Where it bites is timing. The longer the gap between the outburst and their change of heart, the more defensible you are in holding them to it. Twenty minutes is not a gap. A fortnight is.

If you treat it as final, you may have dismissed them

This is the real risk. If what happened was not a resignation and you behave as though it was, then it is you who ended the employment, and Acas defines a dismissal as exactly that, an employer ending an employee’s contract. You will have done it with no meeting, no letter, no warning and no reason on record, which is the hardest kind of dismissal to defend.

Whether they can take it to a tribunal depends on their service. For dismissals up to and including 31st December 2026, an employee needs two years of continuous employment to claim ordinary unfair dismissal (section 108 of the Employment Rights Act 1996, and Acas). For dismissals from 1st January 2027 it is six months, and the cap on compensation goes entirely on the same day.

Service is not the whole picture, and this is where employers with newer staff get caught. Acas lists the reasons that make a dismissal automatically unfair whatever the length of service, including pregnancy and maternity, family leave, whistleblowing, raising a health and safety concern, and asking for a legal right such as the minimum wage. Discrimination sits outside the service question altogether: the Equality Act 2010 protects anyone who works for an employer, along with contractors, job applicants and former workers. So if the row was about an adjustment they had asked for, or about their pregnancy, “they resigned” is a thin answer and everyone in the room will know it.

Write the note today, because the window is getting longer

Write down what happened while you still remember it: what was said, who was present, the time, and what you did next. Two reasons, and one of them is a date.

For acts occurring on or after 1st October 2026, the time limit for bringing most employment tribunal claims goes from three months to six. Before that date it is three months minus one day from the date the employment ended. In Scotland the change lands on 9th November 2026 for breach of employment contract claims.

So a walkout this week can surface a long time afterwards, when your memory of a Tuesday afternoon will be worth very little and a note written the same day will be worth a great deal. The second reason is the January 2027 change above: the same incident carries more exposure the further into next year it falls.

If they walk out and never come back

Silence is not a resignation either, and “they abandoned their job” is not a category that saves you. Neither Acas nor gov.uk has a page on job abandonment, which tells you something: there is no shortcut here, only the ordinary process. Treat it as unauthorised absence. Write once asking them to make contact by a set date, then again inviting them to a meeting about it, warning that a decision may be taken in their absence if they do not attend.

If you do end the employment, end it as a dismissal, labelled as one, with a reason and a right of appeal. A dismissal you decided to make is defensible. One you backed into by calling it a resignation is not.

If it turns out they did mean it

Then it is an ordinary resignation. Confirm it in writing, covering the last working day and how holiday pay will be settled, which is what Acas suggests a response should include. Notice usually runs from the start of the day after they handed it in, and the statutory minimum an employee with a month or more of service must give is one week, though the contract may require longer.

If they refuse to work their notice, that is a breach of contract on their side and gov.uk notes that an employer could take them to court, though in a small business that is rarely worth the cost. If a disciplinary or grievance was already running, a resignation does not oblige you to abandon it, and finishing the investigation usually leaves you a better record.

So, the honest answer. Probably not, not yet. Do nothing today, write the letter tomorrow, give them until Friday to confirm, and keep a dated note. If they confirm, you have a clean resignation with a date attached. If they retract, you have an employee who needs a conversation about whatever started the row. Both are fine. The only version that turns a bad Tuesday into a tribunal claim is the one where you cleared their locker that afternoon.

Tarn.hr provides HR guidance based on UK employment law and Acas codes of practice. It does not constitute legal advice and should not be relied upon as such. Employment law is complex and turns on the facts of each case. For any situation involving significant legal risk, potential tribunal claims, or matters of particular sensitivity, you should seek advice from a qualified employment solicitor. Tarn.hr is not responsible for any decisions made on the basis of its guidance.