How to deal with workplace bullying: an employer's guide
Workplace bullying is one of those issues that many employers hope will resolve itself. It rarely does. Left unaddressed, it damages morale, drives good people out, and exposes your organisation to serious legal and reputational risk. As an employer, you have both a legal duty and a practical obligation to take it seriously.
Here's how to approach it properly.
What counts as workplace bullying?
There's no single legal definition of bullying in UK employment law, but ACAS describes it as offensive, intimidating, malicious or insulting behaviour — an abuse or misuse of power that undermines, humiliates, or injures the person on the receiving end. It can be obvious (shouting, public humiliation, personal insults) or subtle (exclusion, micromanagement as a form of control, consistently undermining someone's work in front of others).
Bullying doesn't have to be face-to-face. Remote and hybrid working has brought a rise in digital bullying — dismissive messages, exclusion from communication threads, hostile emails.
Importantly, bullying is different from legitimate management. Setting high standards, giving critical feedback, and managing performance robustly are not bullying — provided they're done with dignity and consistency.
Why employers can't afford to ignore it
Unchecked bullying creates significant exposure. Employees who are bullied and feel unsupported can bring claims for constructive dismissal, personal injury, or under the Equality Act 2010 where the behaviour is linked to a protected characteristic — disability, race, sex, age, and so on. Where bullying crosses into harassment under the Equality Act, you as the employer can be vicariously liable for your employees' conduct if you haven't taken reasonable steps to prevent it.
Beyond the legal risk, the business cost is real: increased sickness absence, reduced productivity, higher turnover, and the reputational damage that follows when these situations become known.
Your legal duty as an employer
You have a duty of care under the Health and Safety at Work Act 1974 to protect employees' mental and physical wellbeing. This extends to how people are treated by colleagues and managers. You also have an implied contractual duty to maintain trust and confidence — which a failure to act on bullying complaints can breach, opening the door to constructive dismissal claims.
What to do when a bullying complaint is raised
Take it seriously from the start. The way you respond in the first 48 hours sets the tone for everything that follows.
Listen before you investigate. Meet with the person raising the complaint. Let them explain what's happened in their own words. Don't minimise, don't offer explanations for the other person's behaviour, and don't promise outcomes you can't deliver. Your job at this stage is to understand what's being alleged.
Decide whether informal or formal action is appropriate. Not every bullying complaint requires a full formal investigation. Where the behaviour is less severe and the relationship between the parties hasn't broken down entirely, a managed conversation — facilitated by a manager or HR — can sometimes resolve things. The key is that the person raising the complaint agrees to this approach; it should never be imposed on them.
For serious or repeated behaviour, follow your formal grievance procedure. This means appointing an impartial investigator, gathering evidence (witness accounts, written records, emails), and giving the accused employee a fair opportunity to respond. The investigation should be thorough, documented, and completed within a reasonable timeframe.
Act on the outcome. If the complaint is upheld, address the behaviour through your disciplinary process. Serious or sustained bullying can amount to gross misconduct. Half-measures — a quiet word, a team reshuffle — rarely resolve the underlying issue and can make things worse.
Support both parties throughout. The person who raised the complaint needs to know they're protected from retaliation. The person accused needs a fair process. Both may need access to your Employee Assistance Programme or occupational health support during what is, for everyone involved, a stressful process.
Prevention matters more than response
The most effective thing you can do is build a workplace where bullying is less likely to occur in the first place. That means:
A clear, accessible anti-bullying and harassment policy that's actually communicated, not just filed away
Managers who understand the difference between performance management and bullying, and who model the right behaviours
A culture where people feel safe raising concerns early, before situations escalate
Regular check-ins and a genuine open-door approach — especially in remote or hybrid teams where poor behaviour can be harder to spot
A note on managers as perpetrators
Some of the most damaging bullying in organisations comes from managers, not peers. This creates a particular challenge because the person being bullied may feel they have nowhere to turn. Make sure your grievance process has a clear route for raising concerns about a line manager — including who to go to if the line manager is the problem.
Where things are heading
The Employment Rights Bill and the wider shift toward stronger worker protections means that employer obligations in this area are only going to increase. Getting your policies and culture right now is sound risk management.
Need support?
At King HR Advisory, we support founders, MDs, and business owners across Sheffield and South Yorkshire who need practical, no-nonsense HR guidance — without the cost of an in-house HR team. If you're dealing with a bullying situation right now, or want to put the right policies and culture in place before something happens, we'd love to help.
Get in touch or book a call to find out more.