A Nightmare on HR Street: Five Frights Employers Should Avoid This Halloween

From tribunal claims rising from the dead to Halloween costumes causing an HR nightmare, October can be a surprisingly spooky month for employers. In addition, this year, there are some particularly important employment law developments lurking in the shadows.

As Halloween approaches, employers may be more concerned with pumpkins, fancy dress and office treats than employment law. But October 2026 brings some significant changes, as well as the familiar risks that can arise when workplace celebrations go wrong.

So, before switching off the lights and heading home on 31 October, here are five employment law horrors employers should be careful not to unleash.

1.  Tribunal claims have longer to come back to haunt you

Perhaps appropriately for Halloween, Employment Tribunal claims are about to have a longer life.

From 01 October 2026, time limits for bringing Employment Tribunal claims have increased from three months to six months. The change is introduced by section 152 and Schedule 12 of the Employment Rights Act 2025, subject to transitional provisions.

For employers, this is more than an administrative change. Historically, the relatively short limitation period has meant that employers could often assess fairly quickly whether a workplace dispute was likely to result in proceedings. The extended period means unresolved grievances, dismissals and other workplace disputes may remain potential litigation risks for longer.

How to avoid the fright: Employers should ensure that documents relating to grievances, disciplinaries, dismissals and other contentious employment matters are properly retained and that managers continue to escalate situations that may lead to potential claims internally, even where several months have passed.

2.  Harassment obligations are getting sharper teeth

Another major development arrives just in time for Halloween.

From 30 October 2026, employers will be required to take “all reasonable steps” to prevent sexual harassment of their employees. Employers will also face an additional obligation concerning harassment of employees by third parties.

recommended measures include having appropriate policies and procedures in place, providing staff and manager training, providing mechanisms through which employees can raise concerns and effective processes for dealing with those complaints.

Steps to support prevention are particularly important. Employers should not simply wait for something to go wrong before acting.

And Halloween itself provides a useful example. The office party where someone makes an inappropriate joke, the customer who directs unwanted comments towards an employee, or the fancy-dress event where boundaries become blurred could all create issues if inappropriate conduct is allowed to go unchecked.

How to avoid the fright: Review anti-harassment arrangements now. Consider what risks actually arise in the organisation, communicate expected standards of behaviour and make sure managers know what to do when concerns are raised.

3.  Beware the fancy-dress nightmare

“We were only having a laugh” has never been a particularly effective defence.

Halloween fancy dress can be good for workplace morale, but what one employee considers amusing may be offensive or inappropriate to another.

The  Equality Act 2010 protects individuals from workplace discrimination relating to 9 protected characteristics, including race, religion or belief, disability, sex and sexual orientation. Discrimination can arise even where the person responsible did not intend to discriminate.

Employers should therefore think carefully before encouraging an anything-goes costume competition. Costumes or jokes which mock a religion, culture, disability or another protected characteristic are obvious territories to avoid. Religious or philosophical beliefs can also receive legal protection, and unlawful conduct can arise from a one-off incident as well as an established pattern of behaviour.

How to avoid the fright: If holding a fancy-dress day, give employees a simple reminder beforehand that costumes should be workplace-appropriate, respectful and consistent with the organisation's usual equality and dignity-at-work standards.

4.  Don't trap employees in compulsory fun

An office Halloween celebration might sound harmless, but not everyone will want to take part.

An employee may dislike Halloween, have religious objections, find elements of the celebration uncomfortable, or simply prefer not to participate. Religion or belief is a protected characteristic under the Equality Act 2010, and protection extends both to people who hold a religion or qualifying belief and those who do not.

Employers should therefore be wary of turning an optional social activity into an expectation. That does not mean Halloween is cancelled. It simply means keeping participation genuinely voluntary and making sure employees who opt out are not mocked, criticised or disadvantaged.

How to avoid the fright: Make clear that celebrations, decorations and fancy dress are optional. Employees should be able to decline without having to justify themselves.

5.  Don't let outdated policies rise from the dead

Perhaps the biggest monster hiding in the cupboard is the employee handbook that has not been reviewed for years.

Employment law is undergoing significant change. Measures already introduced during 2026 include changes to Statutory Sick Pay, day-one Paternity and Unpaid Parental Leave rights, collective redundancy protection, and whistleblowing protection relating to sexual harassment. Further reforms continue to be implemented in stages.

October has been bringing about further changes, and more are expected during 2027. The Government has expressly noted that future implementation dates remain subject to parliamentary processes and may change.

An old handbook can therefore become more than an untidy document. Policies which have not kept pace with legislative developments can result in managers following the wrong process or employees being given inaccurate information about their rights.

How to avoid the fright: Carry out a policy audit. Priority areas should include family leave, sickness absence, disciplinary and grievance procedures, equality and harassment, whistleblowing and redundancy arrangements.

The trick is preparation, not panic

Halloween is supposed to provide the scares, your HR department should not.

For employers, the key message this October is relatively simple: prepare early, communicate expectations clearly and make sure policies and practices reflect the changing legal landscape.

The combination of extended Employment Tribunal limitation periods and strengthened harassment obligations means that October 2026 is a particularly good time for employers to look again at how workplace issues are prevented, documented and resolved.

So, enjoy the pumpkins, sweets and questionable costumes, just make sure the only skeletons in the workplace are of the plastic variety.

Happy Halloween from FG Solicitors. 🎃