Holiday Parties, Workplace Culture and Sexual Harassment – What Employers Need to Know This Festive Season

With workplace Christmas and end-of-year celebrations shortly to be in full swing, employers should be aware of a global trend that is reshaping how sexual harassment is viewed and regulated. At an international conference I recently attended with my colleague Michelle Bush (a US Employment Attorney), a panel of legal and HR experts from across the USA, UAE and Europe highlighted a common shift: sexual harassment is increasingly being treated as a health and safety issue, requiring organisations to take proactive steps to prevent it before it occurs.

This shift is particularly relevant during the festive period. Workplace celebrations often involve informal environments, relaxed hierarchies and alcohol—all factors which can increase the risk of inappropriate behaviour. When harassment occurs, the impact is the same at any time of year, and wherever it takes place: employees lose trust, engagement declines, culture suffers and employers risk serious reputational and legal consequences.

A Proactive Prevention Approach in the UK

In response to the #MeToo movement and multiple high-profile cases, the UK Government has reinforced the need to move from reactive handling of complaints to actively preventing harassment. The goal is cultural change: ensuring that workplaces are safe, respectful and inclusive.

Below is an overview of the key legal developments affecting employers and why they matter during the holiday season.

Employers are now under a statutory duty to take reasonable steps to prevent sexual harassment in the workplace and at work-related events — which include:

• Christmas parties
• Team outings
• Client entertaining
• Off-site celebrations

This requires employers to:

• Conduct risk assessments (e.g., the role of alcohol, power imbalances, closed-door social environments)
• Provide suitable anti-harassment training
• Ensure policies clearly apply outside the office/workplace, including social events

If a sexual harassment claim succeeds, the Employment Tribunal can increase compensation by up to 25% where an employer has breached this duty.

Holiday Party Application:

Consider controlling or monitoring alcohol consumption, reminding staff of behavioural expectations in advance, training staff beforehand in relation to the prevention of sexual harassment and ensuring managers are visible and approachable during events.

Under the forthcoming Employment Rights Bill:

• Employees who report sexual harassment will be protected as whistleblowers where the disclosure is in the public interest.
• Those dismissed or disadvantaged for doing so may claim automatic unfair dismissal or detriment.

This change will make it clear that disclosing sexual harassment can amount to whistleblowing and is likely to encourage reporting. Other consequences include:

• Direct reporting to bodies such as the Equality and Human Rights Commission
• Potential access to interim relief (a legal remedy that keeps an employee on the payroll after they have been dismissed)
• Reduced reliance on confidentiality clauses that might otherwise discourage employee voice

Holiday Party Application:

This change in the law will not come into force until after Christmas. However, it is nonetheless important to ensure employees know how to report concerns arising from work-related social events — and that they will be supported if they do.

From October 2026 the standard will rise from “reasonable steps” to all reasonable steps to prevent harassment across all protected characteristics, not just sexual harassment. Employers will be required to take all reasonable steps to prevent harassment relating to age, sex, sexual orientation, disability, gender reassignment, marriage and civil partnership, race, religion or belief and conduct of a sexual nature.

A new Statutory Code is expected to clarify expectations, likely including:

• Regular, relevant training
• Clear behavioural standards
• Active monitoring of workplace culture

Employers will also, from October 2026, be vicariously liable for harassment by customers, contractors, suppliers and other third parties, unless reasonable preventive steps are proven.

This is crucial for:

• Hospitality venues hosting Christmas events
• Professional services interacting with clients socially
• Events involving external entertainment or vendors

With holiday gatherings underway, employers should take the opportunity to reinforce a respectful workplace culture by:

• Updating employment and whistleblowing policies to explicitly reference sexual harassment
• Running refresher training before social events
• Making sure managers know how to intervene if behaviour crosses a line
• Setting expectations around alcohol and conduct in invitations or event briefings
• Ensuring reporting channels are confidential, trusted and accessible

US employers face similar proactive obligations, with many states mandating harassment prevention training for staff. MBM Commercial supports organisations operating in both jurisdictions to implement effective and compliant approaches.

The legal landscape is shifting toward prevention, accountability and culture change. By acting early - especially around workplace social events - employers can:

• Maintain compliance with evolving UK and US requirements
• Reduce legal and reputational risk
• Build workplaces founded on respect, safety and trust