How to Manage Probation Periods - UK Small Business Guide

Probation periods have always been important, but with upcoming changes to unfair dismissal rights expected to reduce the qualifying period to around six months, they’re becoming even more relevant for small businesses.

There’s a lot of noise around this at the moment, and it can feel overwhelming.

In reality, a well-managed probation period gives you clarity, structure and confidence when bringing someone new into your business.

Why Probation Periods Matter More Now

Traditionally, employees needed two years’ service to claim unfair dismissal. This will reduce to six months from 1st January 2027.

That means someone starting a role on 1st July 2026 would reach six months’ service on 1st January 2027 and could then be eligible to bring an unfair dismissal claim.

This means the first few months of employment are becoming more important. Not because businesses need to act defensively, but because decisions need to be made with structure and awareness.

The Common Problem with Probation

It may be surprising to hear, that most issues don’t come from the probation period itself, but from how it’s managed.

In many small businesses, probation may look like:

• a quick check-in at the start

• little or no documentation

• no structured reviews

• a decision made right at the end

• or, in some cases, being forgotten about altogether

  
  

What Good Probation Management Looks Like

A well-managed probation period should be consistent and meaningful.

A simple structure could include:

• A clear probation period in the contract

• Expectations set from day one

• Regular check-ins (not just at the end)

• Written notes of conversations

• Early identification of concerns

Alongside this, a structured and supportive induction is essential to give the new employee the best chance of success.

It's never about catching people out, but about whether the role is working for both sides.

When to Make a Decision

One of the most important points for small businesses: Don’t leave decisions to the end of probation.

If there are concerns, they should be:

• raised early

• discussed clearly

• reviewed over time

  
  

If a role genuinely isn’t working out, it’s usually better to make that decision earlier rather than later.

Probation Length: 3 Months or 6 Months?

There’s a lot of discussion around whether businesses should shorten probation periods. However, the key is not the length, it is how it is managed within that time. For example:

• Month 1 → initial check-in

• Month 3 → formal review

• Months 4–5 → identify and address any concerns

• Month 6 → final decision (before 6 months’ service is reached)

The key is to avoid reaching month 6 without already knowing what the outcome should be. This approach avoids last-minute decisions and gives you time to act where needed.

Throughout the probation period, ongoing support and regular conversations are important, with clear and achievable expectations set from the outset.

What If You Need to Extend Probation?

Extending probation can be useful where performance is mixed and more time is genuinely needed.

However, extending probation does not delay an employee’s statutory rights. If unfair dismissal rights apply from six months’ service, an employee may reach that point during an extended probation period.

That does not mean you cannot extend probation or make decisions after six months. It does mean the process needs to be more carefully managed.

The key is to review progress well before the end of probation. If concerns are identified around months 3–5, there is time to raise them, document them, support improvement and decide by month 6 whether to:

• confirm employment

• end employment

• or extend probation with a clear written plan

  
  

If concerns are only picked up at the very end of a 6 month probation, an extension can create more risk because the employee may already have gained additional statutory protection. Early action and intervention is essential.

What Small Businesses Should Do Now

You don’t need to change everything but it is worth checking your processes:

• Do your contracts clearly define probation?

• Do you have a structured probation review process?

• Do you have a meaningful and consistent induction?

• Are managers confident and capable?

• Are decisions being made early enough?

  
  

Final Thoughts

Probation periods aren’t something to worry about but they’re something to use properly. With clear structure, regular conversations and early decision-making, they can be straightforward and valuable part of running a business.

If you’re unsure whether your current approach to probation is watertight, need updated documentation and processes or if you're just want to chat it through, I'd be happy to help. Get in touch below!

Let's Chat!