This guide is maintained as a current resource for September 2026 and covers only the laws of England and Wales. Information is for general guidance, not legal advice. Consult a qualified solicitor for advice specific to your situation.
Vicarious liability in discrimination claims explained under the Equality Act 2010, covering employer responsibility, section 109 rules, the reasonable steps defence, tribunal claims, and compensation in England and Wales.

Vicarious liability is a core principle in UK discrimination law under the Equality Act 2010. It determines when an employer can be held legally responsible for unlawful acts of discrimination, harassment, or victimisation carried out by employees or agents.
In employment tribunal claims, vicarious liability is often the legal mechanism that makes employers responsible for workplace conduct they did not personally authorise or know about. It ensures that victims of discrimination have an effective remedy against organisations, rather than being limited to individual employees.
This article explains how vicarious liability operates in discrimination claims, the statutory rules, key legal tests, employer defences, tribunal processes, and practical implications.
Legal Basis for Vicarious Liability
The legal framework is set out in section 109 of the Equality Act 2010.
Section 109(1): Employer Liability for Employees
An employer is liable where:
- An employee commits discrimination, harassment, or victimisation
- The act is carried out “in the course of employment”
- The employer did not necessarily authorise or know about the conduct
The law states that anything done by an employee in the course of employment is treated as also done by the employer.
Importantly:
- Employer knowledge is not required
- Employer approval is not required
Section 109(2): Liability for Agents
An organisation can also be liable for acts carried out by an agent, where:
- The agent acts with the employer's authority
- The discriminatory act occurs within the scope of that authority
This can include contractors, recruitment agencies, or third parties acting on behalf of the employer.
What Counts as “In the Course of Employment”
The phrase “in the course of employment” is interpreted broadly by tribunals.
It may include:
- Conduct during working hours
- Actions in the workplace
- Decisions made in managerial or supervisory roles
- Behaviour at work-related events (including social events linked to employment)
- Communication using work systems (email, messaging platforms)
The key question is whether there is a sufficient connection between the employee's role and the discriminatory act.
For example:
- A manager making discriminatory promotion decisions will usually fall within scope
- A colleague harassing another employee in the office is typically within scope
- Extreme personal conduct may fall outside scope if unrelated to employment
Types of Discriminatory Acts Covered
Vicarious liability applies to all forms of unlawful conduct under the Equality Act 2010, including:
- Direct discrimination
- Indirect discrimination
- Harassment
- Victimisation
Harassment cases are particularly common in vicarious liability claims, especially where workplace culture or supervisory behaviour contributes to a hostile environment.
Why Employers Are Held Liable
The policy reason behind vicarious liability is to ensure:
- Employers take responsibility for workplace culture
- Victims can access effective remedies
- Organisations implement proper safeguards and training
Liability is strict in nature, meaning it can arise even where:
- The employer acted in good faith
- Policies were in place but not followed
- The employer was unaware of the conduct
The “Reasonable Steps” Defence
Employers may avoid liability under section 109(4) Equality Act 2010 if they prove they took all reasonable steps to prevent discrimination.
Legal Test
The employer must show:
- Steps were taken to prevent discriminatory acts, or
- Steps were taken to prevent acts of that type generally
This is a strict defence, and the burden of proof is on the employer.
Examples of Reasonable Steps
Tribunals typically consider:
- Anti-discrimination and anti-harassment policies
- Regular staff training (including refresher training)
- Clear reporting and grievance procedures
- Prompt investigation of complaints
- Disciplinary enforcement against misconduct
- Monitoring workplace culture
Case law confirms that ineffective or outdated training may be insufficient, even if policies exist on paper.
Limits of the Defence
The defence will fail where:
- Training is not meaningful or regularly updated
- Complaints are ignored or poorly handled
- Management fails to act on known risks
- Preventative measures are superficial or inconsistent
The assessment is practical, focusing on effectiveness rather than documentation alone.
Liability of Individual Employees
Vicarious liability does not exclude personal responsibility.
Under the Equality Act 2010:
- Employees who commit discriminatory acts can be personally liable
- Managers and colleagues may be named as respondents in tribunal claims
- Liability may arise alongside employer liability
This creates joint liability, where both employer and individual may be held responsible.
Agents and Third Parties
Employers may also be liable for acts carried out by agents acting with authority.
This can include:
- Recruitment agencies
- Consultants
- Contractors
- External service providers acting on behalf of the employer
Liability depends on whether the act was carried out within the scope of authority given by the organisation.
Relationship with Employer Liability in Practice
In discrimination claims, vicarious liability is the main route by which employers are held responsible.
Typical scenarios include:
- Workplace harassment between employees
- Discriminatory decisions by managers
- Biased recruitment or promotion processes
- Failure to act on reported complaints
Even where senior leadership is unaware of misconduct, liability may still arise if the conduct occurred in the course of employment.
Employment Tribunal Process
Claims involving vicarious liability are typically brought in the Employment Tribunal.
Key stages:
- ACAS Early Conciliation
- Mandatory step before issuing a claim
- Opportunity to settle without litigation
- ET1 Claim Form
- Sets out allegations and legal basis
- ET3 Response
- Employer defends claim and may dispute liability
- Disclosure and Evidence
- HR records, emails, policies, witness statements
- Hearing
- Tribunal determines liability and applies section 109 tests
- Remedy Stage
- Compensation assessed if claim succeeds
Compensation and Remedies
If vicarious liability is established, tribunals may award:
- Compensation for financial loss
- Injury to feelings damages
- Interest on awards
- Recommendations for workplace changes (rare)
Compensation in discrimination claims is unlimited, meaning awards depend on severity and impact rather than statutory caps.
Common Employer Risk Areas
Vicarious liability most frequently arises in:
- Workplace harassment and bullying
- Sexual harassment claims
- Discriminatory recruitment decisions
- Pay and promotion disputes
- Disability-related failures to make adjustments
- Informal workplace culture and “banter”
Risk increases where training and enforcement are weak.
Practical Implications
For employees:
- Document incidents and communications
- Identify whether conduct is linked to employment roles
- Use grievance procedures where appropriate
- Engage ACAS Early Conciliation before tribunal claims
For employers:
- Implement effective equality and harassment policies
- Provide regular, meaningful training
- Investigate complaints promptly and consistently
- Maintain clear reporting structures
- Take disciplinary action where appropriate
Key Takeaways
Vicarious liability under the Equality Act 2010 makes employers legally responsible for discriminatory acts committed by employees or agents in the course of employment. Liability applies even without employer knowledge or approval.
Employers can only avoid liability by proving they took all reasonable preventative steps, a high legal threshold requiring effective policies, training, and enforcement. The principle ensures accountability for workplace discrimination and provides claimants with a practical route to compensation through the Employment Tribunal.