UK · Notice periods

Resigning during probation period

You can resign at any point during probation. The notice you have to give is set by your contract, usually one week (junior roles) or one month (senior roles). Resignation is your unilateral right under UK employment law; you do not need the employer’s permission and you do not have to give a reason.

Last updated Last reviewed

The notice rules during probation

Most UK contracts set a shorter notice for the probation period than the post- probation figure. The shorter probation notice exists so that both sides can end the relationship quickly if the fit is not right. It applies in both directions: the employer also gives the same shorter notice if they dismiss during probation.

Common patterns:

  • One week during probation, one month after: junior professional and most administrative roles.
  • One month during probation, three months after: NHS Bands 5 to 9, many senior professional roles.
  • Two weeks during probation, two months after: financial services analyst and associate level, some marketing and technology mid-level roles.
  • One day or zero notice during probation: some retail, hospitality and bank-based contracts.

The figure in your contract is the source of truth. Find the clause and confirm before you write the resignation letter.

How to hand in notice

A short written resignation letter is the contractual step. Delivered to your line manager and copied to HR. Email is fine for most modern UK employers. The contract date is the date the letter is received, not the date you wrote it.

A clean resignation letter has four parts: a clear statement that you are resigning, the role you are resigning from, the final working day (calculated from the contractual probation notice), a short polite line about supporting the handover. Nothing else is needed. The resignation letter generator builds one from a few fields.

Avoid explaining why in the letter. The letter goes on the HR file and references may pull from it. Reasons can be given in the exit interview if you want to, or kept private.

Calculating the final working day

Count the contractual probation notice from the date the employer receives the letter:

  • One-week notice handed in on Monday 6 January → final working day Sunday 12 January.
  • One-month notice handed in on 6 January → final working day 5 February.
  • Two-week notice handed in on Monday 6 January → final working day Sunday 19 January.

The notice period calculator handles the date arithmetic for any notice length. The probation end date calculator gives you the probation end date if you are calculating from start of employment rather than from resignation.

What happens during the notice

Your contractual obligations continue in full up to the final day. Pay, pension contributions and benefits run as normal. Confidentiality continues. Most senior contracts also have non- compete and confidentiality clauses that survive the end of employment; read your contract carefully.

Most employers ask you to complete the short notice in your normal role with a handover document covering live work. Some will pay PILON (payment in lieu of notice) to end the contract immediately, but this is uncommon for short probation notices. The PILON calculator models the gross figure if it applies.

Pay and accrued leave at the end

The final pay packet includes salary up to your last working day, accrued but untaken holiday paid out at your normal rate, and any contractual bonus or allowance earned. The P45 follows shortly after.

Holiday accrual during a short probation is pro-rated. A few weeks of employment usually produces only a few days of accrued holiday. The holiday entitlement calculator works out the figure for any work pattern.

References from a short stint

UK employer references are typically factual: confirmation of role, dates, and reason for leaving. A short probationary stint produces a brief, factual reference. Most employers will confirm employment dates and role even for staff who left in probation; some will refuse to give a substantive reference for staff with less than six months of service.

The new employer almost never weights a short stint heavily in the reference decision. Recent UK hiring practice is to focus on the most recent substantial role and the candidate’s interview performance, not on every short historical role.

The CV question

Most UK CVs do not need to include every short stint. If a probationary role lasted less than three months and ended without a substantial outcome, it can usually be left off the CV entirely.

If it has to be on the CV (a recent longer stint, or to fill a gap), the right framing is brief and forward- looking. One short bullet point covering the dates and the role is enough. Avoid lengthy explanations. The CV is read in 30 seconds; a long explanation of why a role did not work out is more memorable than the role itself, in the wrong way.

For the broader CV approach, see the CV writing guide and the worked examples at CV personal statement examples.

NHS probation specifically

NHS probation arrangements have their own particularities. Notice during NHS probation is typically one week (Bands 1-4) or one month (Bands 5-9). The formal step uses ESR (Electronic Staff Record) for the HR-system entry alongside the written letter.

NHS reckonable service is preserved if you return to NHS employment within 12 months, so a short NHS probationary stint does not necessarily reset the clock for annual leave, sick pay or redundancy calculations on a future NHS role. See the NHS probation period page for the policy reference and the NHS probation guide for the practical employee playbook.

Why do most resignations during probation happen?

The common reasons:

  • Role does not match the advert. The day-to-day work is different from what was sold at interview. Often the most common reason.
  • Team or manager fit. Personality or work-style mismatch that did not show in the interview and is not going to improve.
  • Better external offer. A role you applied for before this one comes through with terms you cannot refuse.
  • Personal circumstance change. Family commitments, health, relocation. Less common but real.
  • Concerns from the employer side. Where it has become clear in the first few months that the employer is not going to confirm you in post, resigning first preserves the reference position.

Useful calculators

Related guides

Frequently asked questions

Can I resign during my UK probation period?
Yes. You can resign at any point during probation. The notice you have to give is whatever your contract sets for the probation period, which is usually much shorter than the post-probation figure. One week is common; some contracts say one month even during probation. The contract is the source of truth.
What notice do I have to give during probation?
Whatever your contract says. The most common patterns are: one week during probation (Bands 1-4 NHS, most retail and entry-level professional roles), one month during probation (Bands 5-9 NHS, many senior professional roles), or two to four weeks (variable by sector). The statutory minimum from the employee side is one week from one month of service.
Do I have to say why I am resigning?
No. A short, professional resignation letter is enough: state that you are resigning, name your role, give the final working day, offer to support a handover. You do not have to explain. Most employers will ask in the exit interview but you can give whatever reason you choose (or none) at that point.
Will resigning during probation hurt my CV?
Less than you might think. Short stints on CVs are common in 2026 and most UK recruiters are used to them. The right framing is brief and forward-looking: 'role ended after a short period due to fit; learnings carried into next role.' Do not over-explain; the next role and the longer-term pattern matter much more.

General information about UK probation and resignation. Specifics depend on your contract. For your situation, contact ACAS or an employment-law solicitor.