Mental Health Discrimination at Work

Mental health conditions are a major cause of sickness absence and workplace disputes in the UK. Conditions such as depression, anxiety disorders, bipolar disorder, post-traumatic stress disorder, and severe stress-related illnesses can significantly affect day-to-day functioning and work performance.

In England and Wales, mental health conditions may be protected as disabilities under the Equality Act 2010 if they have a substantial and long-term adverse effect on a person's ability to carry out normal daily activities. Where this threshold is met, employees gain legal protection against discrimination, harassment, and unfair treatment at work.

Mental health discrimination claims commonly arise in relation to dismissal, absence management, performance procedures, disciplinary action, and failure to make reasonable adjustments.

Legal Framework

Equality Act 2010

The Equality Act 2010 is the main legislation protecting employees with mental health conditions. It prohibits discrimination in all aspects of employment, including recruitment, working conditions, training, promotion, and dismissal.

A mental health condition will qualify as a disability if:

• It has a substantial adverse effect on daily activities
• The effect is long-term (has lasted or is likely to last at least 12 months)
• It is not a minor or temporary condition

Once classified as a disability, the employee is protected from:

• Direct discrimination
• Indirect discrimination
• Discrimination arising from disability
• Failure to make reasonable adjustments
• Harassment
• Victimisation

Recognising Mental Health as a Disability

Mental health conditions may not always be immediately visible. However, they can still meet the legal definition of disability. Common conditions include:

• Clinical depression
• Generalised anxiety disorder
• Panic disorder
• Obsessive-compulsive disorder (OCD)
• Bipolar disorder
• Post-traumatic stress disorder (PTSD)
• Severe stress-related conditions

Tribunals consider medical evidence, workplace impact, and duration when assessing whether a condition qualifies as a disability.

Employers are not required to make a formal diagnosis themselves but may be considered to have knowledge of disability if symptoms are obvious or disclosed.

Types of Mental Health Discrimination at Work

1. Direct discrimination

Direct discrimination occurs where an employee is treated less favourably because of their mental health condition.

Examples include:

• Refusing promotion due to a history of depression
• Dismissing an employee because of anxiety-related absences
• Excluding staff from opportunities due to mental health disclosure
• Assuming reduced capability based solely on diagnosis

Direct discrimination cannot usually be justified under UK law.

2. Discrimination arising from disability

This occurs where an employee is treated unfavourably because of something connected to their mental health condition, such as:

• Frequent sickness absence
• Difficulty concentrating
• Reduced performance during episodes of illness
• Emotional distress affecting workplace interactions

Example:
An employee with PTSD is disciplined for emotional outbursts linked to their condition. This may amount to discrimination unless the employer can objectively justify the action.

3. Failure to make reasonable adjustments

Employers are legally required to make reasonable adjustments where a disabled employee is placed at a substantial disadvantage.

Examples of adjustments for mental health conditions include:

• Flexible working hours
• Reduced workload or modified duties
• Remote working arrangements
• Adjusted performance targets
• Additional breaks during the working day
• Mental health support or counselling access
• Changes to reporting lines or supervision style

Failure to consider or implement such adjustments is one of the most common grounds for mental health discrimination claims.

4. Indirect discrimination

Indirect discrimination occurs where workplace rules or practices disadvantage employees with mental health conditions.

Examples include:

• Strict attendance policies penalising mental health-related absences
• High-pressure performance targets without flexibility
• Rigid return-to-work requirements after sickness absence
• Mandatory in-person attendance without alternative arrangements

Such policies may be lawful only if objectively justified.

5. Harassment related to mental health

Harassment includes unwanted conduct that creates a hostile or degrading environment.

Examples include:

• Mocking mental health conditions
• Derogatory comments about “stress” or “anxiety”
• Isolating employees due to mental health disclosure
• Dismissing symptoms as weakness or incompetence

Even isolated incidents can give rise to liability if they are sufficiently serious.

6. Victimisation

Victimisation occurs where an employee is treated badly because they have:

• Raised a discrimination complaint
• Requested reasonable adjustments
• Supported a colleague's claim

Examples include:

• Negative performance reviews after disclosure of mental health issues
• Exclusion from training after raising concerns
• Increased scrutiny following a grievance

Employer Responsibilities

Employers have significant legal duties when managing mental health in the workplace. These include:

• Identifying potential disability status where appropriate
• Making reasonable adjustments
• Avoiding rigid or punitive application of absence policies
• Ensuring fair disciplinary and performance procedures
• Seeking occupational health or medical advice where necessary
• Maintaining confidentiality of health information
• Preventing workplace harassment or stigma

Acas guidance encourages early support and informal resolution where possible, particularly in mental health-related absence or performance concerns (acas.org.uk).

Sickness Absence and Mental Health

Mental health conditions often lead to sickness absence. Employers must be careful when managing attendance systems.

Risks arise where:

• Absence triggers are applied rigidly
• Mental health-related absence is treated the same as misconduct
• Return-to-work processes are overly pressurised
• Employees are penalised for relapse or fluctuating conditions

Employers must consider whether absence is linked to disability and whether adjustments are needed.

Capability, Performance, and Mental Health

Performance management systems must take mental health conditions into account.

Key legal considerations include:

• Whether underperformance is linked to disability
• Whether reasonable adjustments could improve performance
• Whether sufficient support has been provided
• Whether dismissal is proportionate

Dismissals without proper consideration of mental health issues may be found unfair or discriminatory by employment tribunals.

Employment Tribunal Claims

Employees may bring claims for:

• Disability discrimination
• Discrimination arising from disability
• Failure to make reasonable adjustments
• Harassment
• Victimisation
• Unfair dismissal

Tribunals assess:

• Medical evidence of mental health condition
• Employer knowledge of the condition
• Reasonableness of adjustments offered
• Consistency of treatment with other employees
• Procedural fairness in decisions

Compensation can include:

• Financial loss (earnings and benefits)
• Injury to feelings
• Future loss of earnings
• In some cases, aggravated damages

Time Limits and Early Conciliation

Most claims must be brought within three months less one day of the discriminatory act. Time limits may be extended through Acas Early Conciliation, which is mandatory before issuing a tribunal claim.

Mental health conditions themselves do not automatically extend limitation periods, although tribunals may consider incapacity in limited circumstances.

Practical Workplace Issues

Disclosure concerns

Employees may be reluctant to disclose mental health conditions due to stigma, but disclosure is often necessary for legal protections to apply.

Confidentiality

Employers must handle mental health information sensitively and in compliance with data protection principles.

Workplace culture

Stigma and misunderstanding remain significant contributors to mental health discrimination claims.

Occupational health input

Medical evidence is often critical in determining reasonable adjustments and capability decisions.

Common Questions

Is depression always a disability?

Not always. It depends on severity, duration, and impact on daily activities.

Can an employee be dismissed for mental health-related absence?

Yes, but only after proper assessment, adjustments, and fair procedure.

Must employers allow remote working for mental health conditions?

Not automatically, but it may be a reasonable adjustment depending on circumstances.

Can mental health discrimination occur without disclosure?

Yes, if the employer should reasonably have known about the condition.

Final Thoughts

Mental health discrimination at work is a significant area of UK employment law governed by the Equality Act 2010. Employees with qualifying mental health conditions are protected from unfair treatment, including dismissal, harassment, and failure to make reasonable adjustments. Employers must take proactive steps to support affected employees, particularly in relation to absence management, performance processes, and workplace adjustments. Where these duties are not met, employees may bring claims in the employment tribunal subject to strict procedural requirements and time limits.