Probationary Periods UK: Best Practice [2026]

Quick Answer: What Is a Probationary Period?

A probationary period is a trial period at the start of employment (typically 3-6 months) during which the employer assesses whether the new employee is suitable for the role. Probation periods have no special legal status in UK law -- they are a contractual arrangement, and the employee retains all their statutory employment rights from day one.

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The Legal Position

There is no specific legislation governing probationary periods in the UK. They are entirely a contractual matter. This means:

• Day-one rights still apply -- the right to a written statement, protection from discrimination, right to the national minimum wage, working time protections, and whistleblowing protection all apply from day one
• Unfair dismissal protection -- currently requires 2 years' qualifying service (though the government has proposed reducing this to day one in the Employment Rights Bill)
• Notice periods -- statutory minimum notice of 1 week applies after 1 month of employment, unless the contract provides for shorter notice during probation
• The probation clause is contractual -- it only has the effect that you give it in the employment contract

What Probation Does and Does Not Do

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Setting Up a Probationary Period

In the Employment Contract

Your contract should clearly state:

• Length of the probation period (e.g., 3 or 6 months)
• Notice period during probation (often 1 week, compared to 1-3 months after probation)
• What happens at the end -- confirmation in post, extension, or termination
• Right to extend the probation period and under what circumstances
• Review process -- when and how reviews will be conducted
• Benefits that may differ during probation (e.g., reduced sick pay, no access to certain benefits)

Example clause: "Your employment is subject to a probationary period of 6 months. During this period, either party may terminate the employment by giving 1 week's written notice. The Company reserves the right to extend the probationary period by up to 3 months if further assessment is needed."

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Managing Probation Effectively

Set Clear Objectives

At the start of probation, agree:

• Specific, measurable objectives for the probation period
• Expected standards of behaviour and performance
• Training and support that will be provided
• Review schedule (recommended: at 1 month, 3 months, and before the end of probation)

Conduct Regular Reviews

Document everything. Keep written records of all review meetings, objectives set, feedback given, and the employee's responses. This documentation is essential if you later need to justify a decision not to confirm employment.

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Extending a Probationary Period

You may want to extend probation if the employee shows potential but needs more time. To do this properly:

• The contract must allow for extension -- you cannot unilaterally extend probation if the contract does not provide for it
• Explain the reasons clearly in writing
• Set new objectives and a clear timeline
• Continue regular reviews during the extension
• A typical extension is 1-3 months
• Do not extend indefinitely -- this undermines the purpose and could suggest unfairness

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Dismissing During Probation

You can dismiss an employee during or at the end of their probation period, but you must still:

Legal Requirements

• Give the contractual notice (or statutory minimum of 1 week after 1 month of service)
• Not discriminate -- dismissal must not be because of a protected characteristic (age, disability, gender reassignment, marriage/civil partnership, pregnancy/maternity, race, religion/belief, sex, sexual orientation)
• Follow a fair process -- even though the employee may not have 2 years' service for unfair dismissal, they can still claim:
  • Automatic unfair dismissal (no qualifying period) for whistleblowing, asserting a statutory right, pregnancy, trade union membership
  • Wrongful dismissal if you do not give the contractual notice
  • Discrimination under the Equality Act 2010

Best Practice Process

Even during probation, follow a fair process:

1. Meet with the employee to discuss your concerns
2. Give them a chance to respond and explain any difficulties
3. Consider whether support or adjustments could resolve the issue
4. Confirm the outcome in writing with the reasons for the decision
5. Offer a right of appeal (not legally required during probation, but good practice)

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After Probation Passes Successfully

When the employee passes probation:

• Confirm in writing that their probation is complete and their employment is confirmed
• Update the notice period to the post-probation contractual notice
• Activate any benefits that were deferred during probation
• Set ongoing performance objectives for the next review cycle

Common mistake: Some employers forget to formally confirm probation, leaving the employee in an uncertain position. Always confirm in writing.

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Probation and the Employment Rights Bill

The UK government's Employment Rights Bill proposes to make unfair dismissal a day-one right, removing the current 2-year qualifying period. If enacted, this would significantly change the probation landscape:

• Employers would need to follow a fair process from day one
• There may be a statutory probation period with a lighter-touch dismissal process
• The government has indicated that a 9-month statutory probation period may be introduced with modified dismissal rules

Practical advice: Start building good probation management practices now, regardless of when the Bill takes effect.

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Using Grove to Manage Probationary Periods

Grove tracks probationary periods automatically, sends reminders for review meetings, and stores all documentation securely. Never miss a probation review deadline or forget to confirm an employee in post.

Get started with Grove and simplify your probation period management.