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Notice period calculator (UK)

Your last day, worked out the UK way.

Please choose a date.
Check your contract. If it says nothing, the legal minimum is 1 week once you have worked there for a month. Please enter your notice period.

How your last day is worked out

Your notice usually starts the day after you tell your employer you are resigning, unless your contract says otherwise. That is the rule set out by ACAS and gov.uk.

Legal minimum notice in the UK

Contracts can ask for more notice than this, but not less.

Who gives noticeTime in the jobLegal minimum
You (the employee)Less than 1 monthNone, unless your contract says otherwise
You (the employee)1 month or more1 week
Your employer1 month to under 2 years1 week
Your employer2 years to under 12 years1 week for each full year
Your employer12 years or more12 weeks

Set by section 86 of the Employment Rights Act 1996.

Notice period FAQs

When does my notice period start?

Usually the day after you tell your employer you are resigning. Your contract can set a different rule, and if it does, the contract applies.

Do weekends count in my notice period?

Yes. Notice runs in calendar days, so weekends and bank holidays count. If your last day falls on a weekend, you stay employed until that day.

What is the minimum notice I have to give?

If you have worked there for a month or more, at least 1 week, or more if your contract says so. With less than a month in the job, the law does not require notice unless your contract does.

Can I use holiday to leave earlier?

You may be able to take your remaining holiday during your notice period if your employer agrees to the dates. The holiday pay calculator shows how much you have built up.

Can I leave before my notice ends?

Only if your employer agrees. Leaving early without agreement is likely to be a breach of contract, so talk to them first.

How much notice do I give during probation?

Check your contract, as many set a shorter notice period during probation. Once you have worked there for a month, the legal minimum of 1 week still applies.

Sources: ACAS: when the notice period starts ACAS: notice when resigning gov.uk: handing in your notice Employment Rights Act 1996, section 86

Last reviewed: 24 September 2026. General guidance only, not legal advice. For anything complex, call ACAS on 0300 123 1100.

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