The biggest employment-law change facing many UK small businesses in 2027 is the reduction of the ordinary unfair-dismissal qualifying period from two years to six months. But that is only one part of a much wider programme of reforms under the Employment Rights Act 2025.
For employers, the practical challenge is timing. Some measures are scheduled for 1 January 2027, while others are expected later in the year and still depend on regulations or consultations. The government says future dates can change.
For a small business without a dedicated HR department, 2027 is therefore a good reason to review employment contracts, probation procedures, flexible-working policies, shift arrangements and dismissal processes before the changes arrive.
The most important UK employment law changes for 2027
The reforms most likely to affect small and medium-sized employers include:
- A six-month qualifying period for ordinary unfair dismissal
- Removal of the statutory cap on compensatory awards for unfair dismissal
- New restrictions on fire and rehire
- Changes to flexible-working requests
- New rights for some zero-hours and low-hours workers
- Compensation and notice requirements for certain cancelled or changed shifts
- Stronger pregnancy and maternity dismissal protections
- A new statutory bereavement leave right
- Changes to collective redundancy rules
- New rules around non-disclosure agreements
- Regulation of umbrella companies
- A new employer duty to tell workers about their right to join a trade union
Not every measure has a confirmed 2027 commencement date. The government’s latest timetable specifically distinguishes January 2027 measures from reforms simply listed as taking effect during 2027.
1. Unfair dismissal protection will start after six months
This is the change most small-business owners should prepare for first.
From 1 January 2027, the qualifying period for an ordinary unfair-dismissal claim will fall from two years to six months. The change applies to England, Scotland and Wales; employment law in Northern Ireland is devolved.
An employee who has completed six months’ continuous service on 1 January 2027 will therefore have the new protection.
This does not mean employers will lose the ability to dismiss employees after six months. Businesses can still dismiss employees for legitimate reasons, including capability or conduct, provided the decision and procedure are fair.
What small businesses should do
Review how you handle:
- Recruitment and selection
- Probation reviews
- Performance concerns
- Disciplinary action
- Capability issues
- Dismissal decisions
- Written records
Probation deserves particular attention. Acas notes that the Act does not create a statutory probation period, and businesses can still choose their own probation arrangements. However, simply ending probation before six months does not remove other legal risks or guarantee that a dismissal is lawful.
2. Unfair dismissal compensation will no longer have the current cap
The six-month qualifying period is only half of the January change.
From 1 January 2027, the current statutory cap on compensatory awards for ordinary unfair dismissal will also be removed. Awards will continue to be based on the claimant’s actual and projected financial losses rather than simply becoming unlimited compensation for every successful claim.
For a small business, this makes good documentation and consistent procedures even more important.
A manager who handles a difficult dismissal informally may create substantially more risk than one who follows a clear process, records the evidence and takes appropriate advice.
3. Fire and rehire rules are changing
The government has scheduled new fire and rehire protections for January 2027.
The reforms will make dismissal and re-engagement on less favourable terms automatically unfair in most circumstances, with a limited exception connected with serious financial difficulties threatening the employer’s viability.
This matters to businesses considering changes to:
- Pay
- Working hours
- Job duties
- Location
- Other contractual terms
A business facing genuine financial pressure should not assume that dismissing staff and offering new contracts is a straightforward way to change employment terms.
If a proposed change is significant, obtain appropriate employment-law advice before taking action.
4. Flexible working rules will become more demanding
Employees already have a day-one right to request flexible working. The 2027 reforms are intended to strengthen the process employers must follow when considering such requests.
Under the planned changes, an employer rejecting a request will need to explain why the refusal is reasonable, and mandatory consultation steps will apply. Acas says these changes are expected in autumn 2027, although the final regulations are still being developed. Acas
For small businesses, this means managers should avoid treating a flexible-working request as a simple yes-or-no administrative exercise.
Consider the employee’s proposal, discuss alternatives where appropriate and keep a clear record of the business reasons behind the final decision.
5. Zero-hours and low-hours contracts will face new rules
The Employment Rights Act 2025 introduces a framework giving qualifying workers on zero-hours and similar low-hours arrangements rights relating to guaranteed hours.
The planned reforms include:
- Offers of guaranteed hours where applicable
- Reasonable notice of shifts
- Compensation for certain cancelled, moved or shortened shifts
The government has not yet set a final commencement date for these measures; its current timetable says the timing will be updated following consultation.
This is particularly relevant to businesses in hospitality, retail, events, care and other sectors that rely heavily on variable staffing.
Employers using these contracts should start reviewing how often workers actually work and how shifts are scheduled and changed.
6. Pregnancy and maternity protections will be strengthened
Further protections against dismissal for pregnant employees and employees returning from maternity leave are scheduled for 2027.
The precise implementation details remain part of the wider rollout of the Employment Rights Act 2025. GOV.UK
For small employers, the practical lesson is straightforward: managers should understand existing pregnancy and maternity protections and avoid making redundancy, performance or dismissal decisions without checking whether additional protections apply.
Good documentation and consistent treatment are particularly important where an employee is pregnant or has recently returned from maternity leave.
7. A new right to bereavement leave is coming
The Act also introduces a new statutory bereavement-leave right during 2027, including provisions covering pregnancy loss.
The government has not yet given a final commencement date in its current timetable, so businesses should watch for regulations and updated Acas guidance before changing their policies. GOV.UK
For small employers, this is a good opportunity to review compassionate-leave policies now rather than waiting until an employee needs to use them.
8. Some small businesses will be affected by redundancy changes
Collective redundancy rules are also being changed.
The Employment Rights Act 2025 expands the circumstances in which collective consultation requirements can apply by changing how proposed redundancies across an employer’s establishments are considered. Legislation.gov.uk
This is unlikely to affect a very small employer making an isolated redundancy. It becomes more relevant as a business grows or conducts restructuring across multiple locations.
Employers planning substantial redundancies should check the rules before announcing dismissals, rather than assuming the existing threshold applies unchanged.
9. Some reforms will mainly affect larger employers
Not every headline 2027 employment-law change will affect a typical small business.
For example, equality action plans covering gender pay gaps and menopause support will become mandatory from spring 2027, subject to secondary legislation, for employers with 250 or more employees.
That means a five-person business does not need to create one simply because the reform exists.
However, small businesses should still pay attention to good workplace practices around equality, menopause support and flexible working. Legal obligations can differ according to business size and the specific situation.
10. Employers will need to inform workers about trade union rights
From 1 January 2027, employers in Great Britain will have a new duty to provide workers with a written statement explaining their right to join a trade union.
New workers should receive the statement alongside their statement of employment particulars. Existing workers who remain employed when the duty begins must receive it by 5 April 2027, subject to the rules governing how the information is provided.
The government says detailed guidance is expected in November 2026.
Small businesses should therefore avoid adding wording to contracts based on assumptions now. Check the final guidance and prescribed requirements when they are published.
A practical 2027 preparation checklist for small businesses
You do not need to rewrite your entire HR system overnight. Start with the areas most likely to create legal risk.
Before January 2027
- Review your dismissal procedure.
Make sure managers understand fair reasons, evidence and procedure. - Check probation arrangements.
Make sure probation reviews happen early enough to identify genuine performance or conduct problems. - Update your employment documents.
Check contracts, staff handbooks and relevant policies against the reforms already in force and those approaching. - Review flexible-working procedures.
Make sure requests are handled consistently and managers understand the current rules. - Audit variable-hours arrangements.
Identify workers on zero-hours or low-hours contracts and monitor actual working patterns. - Check family and pregnancy policies.
Make sure managers know where enhanced protections may apply. - Keep watching the official timetable.
Several 2027 reforms still depend on secondary legislation, consultation or final commencement dates.
Frequently asked questions
What is the biggest employment law change for small businesses in 2027?
The reduction of the ordinary unfair-dismissal qualifying period from two years to six months is likely to have the broadest direct effect on employers. It takes effect from 1 January 2027 for relevant dismissals.
Does the Employment Rights Act 2025 apply to Northern Ireland?
Many of the reforms discussed here apply to England, Scotland and Wales rather than Northern Ireland. Employment law is devolved in Northern Ireland, so Northern Irish employers should check Northern Ireland-specific rules.
Will small businesses have to offer guaranteed hours to every zero-hours worker?
Not immediately in January 2027. The guaranteed-hours reforms are scheduled for 2027, but the government has not yet confirmed the final commencement date or all implementation details.
Do businesses still have probation periods under the new rules?
Yes. The Employment Rights Act 2025 does not remove probation periods or prescribe a statutory length. However, employers should review how probation works alongside the six-month unfair-dismissal qualifying period.
Are these changes already final?
The Employment Rights Act 2025 is law, but its provisions are being introduced in stages. Some 2027 dates and implementation details remain subject to regulations and consultation, and the government’s timetable warns that future dates can change.
Final thoughts
The safest way for a small business to approach the UK employment law changes coming in 2027 is to treat them as a rolling compliance project rather than one January deadline.
Start with dismissals and probation because the six-month unfair-dismissal rule has a confirmed 1 January start date. Then review flexible working, variable-hours contracts, family-related policies and employee documentation as further regulations are published.
For businesses with limited HR resources, the goal is not to predict every detail months in advance. It is to have sound employment processes, accurate records and a habit of checking the latest official guidance before making decisions that could affect an employee’s rights.
