About probation notice period calculator
Typical probation length and notice
Probation periods in the UK are usually three or six months, depending on the role and the employer. The notice clause inside the probation clause typically shortens the standard contractual notice — one week is the most common figure, with some employers specifying no notice in the first month.
Once you pass probation, you usually move to the full contractual notice — typically one or three months. If your contract is silent on probation notice, the statutory minimum applies once you've been employed for a full month: that's one week from you, and one week from your employer.
What if your probation is extended?
Employers can extend a probation period if they want more time to evaluate fit. Extensions are usually three months and have to be done before the original probation ends — they can't be applied retrospectively.
An extension keeps you on the shorter probation notice. If you're considering leaving while on extended probation, the same shorter notice applies as before.
If your employer ends probation early
Employers can dismiss you during probation with the contractual probation notice — usually a week — and don't need to follow the full disciplinary process. They do still need to give a fair reason, and certain protections apply from day one (discrimination, whistleblowing, certain health and safety grounds).
If the dismissal feels unfair or discriminatory, ACAS is the first port of call. The two-year qualifying period for ordinary unfair dismissal claims means you can't bring a standard claim, but the protected grounds above don't have a qualifying period.
When does probation actually end?
Probation ends on the date specified in your contract — but only if your employer formally confirms you've passed. Some employers do this in writing automatically, others let it lapse silently, and a few require an explicit sign-off.
If your probation end date has passed and you haven't heard either way, ask your manager in writing. The default position is usually that you've passed, and clarifying it now avoids ambiguity later.
Pay, holiday and benefits on probation notice
Probation rarely changes the basics of pay. You're paid your normal salary for any time worked during probation notice, including the partial week or month at the end. Accrued holiday is paid out the same as for any leaver. Some employers won't let you use accrued holiday during probation notice if it's only a week — easier to pay it out.
Benefits can vary. Some employers don't enrol you in private medical or dental cover until you pass probation, so leaving on probation may mean those benefits never started. Check what's actually been activated for you. Pension auto-enrolment usually still applies regardless of probation status.
Frequently asked questions
- Is one week the legal minimum on probation?
- After your first month of employment, yes — that's the statutory minimum from an employee. In the first month, no notice is technically required either way under the statutory rules, though contracts often specify a week.
- What if my contract doesn't mention a probation period?
- Then there isn't one — the standard contractual notice applies from your first day. Some roles don't have a formal probation, particularly more senior positions.
- Can I leave on probation with no notice at all?
- Only in your first month of employment, and only if your contract doesn't specify otherwise. After a month, the statutory minimum of one week applies.
- Will leaving during probation hurt my CV?
- It can if it happens repeatedly. A single short stint, well-explained, isn't a problem. Be prepared to talk about why the role wasn't right and what you learned from it.