A probation period can feel like a trial where the employer holds all the cards. It does not work that way. Although dismissal can be easier during your first months in a job, probation period rights in the UK still cover pay, holiday, discrimination and contractual notice. The practical question is which protections apply immediately and which depend on how long you have worked.
What does a probation period legally mean?
Probation is an agreed period for assessing whether a role is suitable. It often lasts three or six months, but there is no universal legal maximum or requirement to use probation. Its length, review process and consequences should be explained in your written employment terms.
Passing probation does not create a completely new employment relationship. Your employment generally starts on your original start date, and your continuous service normally continues through probation. A shorter notice clause or additional review requirements may apply while probation lasts, depending on your contract.
Which employee rights apply from day one?
Being on probation does not mean working without legal protection. Eligible workers retain the right to the National Minimum Wage or National Living Wage, paid annual leave, itemised payslips and protection against unlawful discrimination. Statutory holiday builds up from the beginning of employment, including during probation.
Employees can also have rights relating to health and safety, whistleblowing, family leave and sickness. Statutory Sick Pay rules and eligibility should be checked for the relevant part of the UK. An employer cannot simply label someone a probationer to avoid their legal obligations.
For a fuller picture, it helps to understand statutory holiday entitlement and the difference between employee and worker status, because some dismissal protections depend on that status.
How much notice is required during probation?
Notice during probation is one of the most common sources of confusion. In Great Britain, after at least one month of continuous employment, an employee normally has a statutory right to at least one week’s notice from the employer. An employee who resigns after one month must normally give at least one week’s notice too.
Your contract may specify longer notice, such as two weeks or a month. Where statutory and contractual minimums differ, the applicable longer entitlement generally governs. During the first month, contractual terms and circumstances matter because the usual statutory one-week minimum has not yet arisen.
Employers may sometimes make a payment in lieu of notice where permitted. Summary dismissal for genuine gross misconduct is different, but calling ordinary poor performance ‘gross misconduct’ does not automatically remove notice rights. Check your employment contract notice clauses before accepting a final-pay calculation.
Can you be dismissed for failing probation?
Yes. A probation dismissal may be lawful where an employer genuinely concludes that performance, conduct or suitability falls short. Acas recommends clear expectations, support, reviews and a fair process rather than treating dismissal as the automatic response to difficulties.
However, the right to bring an ordinary unfair-dismissal claim currently depends on qualifying service in Great Britain: generally two years for dismissals before 1 January 2027. From that date, the qualifying period becomes six months. The new threshold applies to employees who already have six months’ service when it takes effect.
Northern Ireland has separate employment legislation, and its ordinary unfair-dismissal qualifying period is generally one year. The January 2027 change does not apply there. These distinctions matter when reading general advice about unfair dismissal rights.
Dismissal reasons that can still be challenged
Length of service is not a blanket defence for an employer. Discrimination because of a protected characteristic, including disability, sex, race, religion or pregnancy-related circumstances, can be unlawful from the start. Certain automatically unfair dismissals, such as dismissal for qualifying whistleblowing or asserting particular statutory rights, do not require the usual qualifying service.
A separate wrongful-dismissal issue can arise if an employer breaks the contract, for example by withholding notice pay. That is different from proving ordinary unfair dismissal.
Can an employer extend your probation?
A probation extension is possible, but the employer should follow the contract and policy rather than assume an unlimited right to extend. Acas advises confirming an extension in writing before the original probation ends, updating written particulars as required, and explaining its duration, goals, support and review date.
For example, suppose your three-month review identifies gaps in a software system you were never trained to use. A sensible extension would identify the training, measurable tasks and a specific follow-up date. A vague message saying ‘probation extended until further notice’ gives you little opportunity to improve and may raise contractual questions.
If an extension is proposed, ask what must change, how success will be measured and whether your notice terms or benefits will be affected. Keep the written response.
What if sickness or discrimination affects your review?
Employees can take sick leave during probation, subject to normal reporting procedures. Disability-related absence may call for reasonable adjustments rather than an automatic failure. Similarly, employers should not penalise someone unlawfully for pregnancy or protected family-related leave.
Where absence makes assessment difficult, an extension may be appropriate, but decisions must be considered individually. A short absence does not necessarily mean the employer lacks enough evidence to judge your performance.
What should your contract and review record contain?
Look for your probation length, notice provisions, extension conditions, review dates and any change to terms after successful completion. Record agreed objectives and request feedback in writing. If you are unexpectedly dismissed, ask for the reason, termination date, notice arrangements, unpaid wages and accrued holiday pay.
If you suspect discrimination, retaliation or breach of contract, retain relevant emails and seek prompt guidance from Acas, a union or an employment adviser. Tribunal deadlines are strict, and an internal grievance does not necessarily extend them.
Frequently asked questions
Can I be dismissed without warning in probation?
Dismissal can occur during probation, but notice and contractual obligations still apply. A fair review process is recommended, and discriminatory or automatically unfair reasons can be challenged regardless of short service.
Do I get holiday pay if I fail probation?
Yes. You normally remain entitled to pay for statutory holiday accrued but not taken when employment ends, alongside outstanding wages and any notice pay owed.
Does probation restart if my employer extends it?
No. An extension does not normally reset your continuous employment start date. It prolongs the assessment period under applicable contractual terms.
Can I resign during my probation period?
Yes. Check the notice clause and the statutory minimum relevant to your length of service. Resigning during probation does not automatically mean you can leave without notice.
Conclusion
Probation changes how your suitability may be assessed; it does not cancel your employment rights. Understand your notice clause, keep a record of feedback and challenge decisions that appear discriminatory or contrary to your contract. With the unfair-dismissal qualifying period changing in Great Britain in January 2027, checking both your service dates and the reason for dismissal is especially important.