Disability leave is time off work that employers provide for disability-related reasons — including medical appointments, treatment, and adjustments that require modified working patterns. In the UK, there is no separate statutory “disability leave” category. However, the Equality Act 2010 requires employers to make reasonable adjustments for disabled employees, and this often involves allowing time off or modified working arrangements.

This guide covers the Equality Act obligations, reasonable adjustments, time off for disability-related appointments, and how employers should manage disability leave.

Key takeaways

  • There is no separate statutory “disability leave” in the UK — but the Equality Act 2010 requires reasonable adjustments.
  • A disability under the Equality Act is a physical or mental impairment with a substantial and long-term (12+ months) adverse effect on daily activities.
  • Reasonable adjustments may include time off for treatment, modified hours, and workplace changes.
  • Employers must not dismiss an employee because of disability without exploring all alternatives.
  • Disability discrimination claims carry no cap on compensation.

What counts as a disability

The Equality Act 2010, s.6 defines disability as a physical or mental impairment that has a substantial and long-term adverse effect on the ability to carry out normal day-to-day activities.

Key points:

  • Substantial means more than minor or trivial.
  • Long-term means lasting or likely to last 12 months or more, or likely to recur.
  • Progressive conditions (e.g., cancer, HIV, multiple sclerosis) are treated as disabilities from the point of diagnosis, even before the 12-month threshold is met.
  • The condition does not need to be diagnosed by a doctor — the legal test is functional impact.

Conditions that are not automatically disabilities include:

  • Minor conditions with no long-term impact (e.g., a broken arm that heals fully).
  • Addictions to alcohol or tobacco (though addiction to prescribed medication may qualify).
  • Seasonal allergies (e.g., hay fever) unless they have a substantial long-term effect.

Reasonable adjustments

Under s.20–21 of the Equality Act 2010, employers must make reasonable adjustments when:

  • A provision, criterion, or practice puts a disabled person at a substantial disadvantage.
  • A physical feature of the workplace creates a barrier.
  • The absence of an auxiliary aid makes the workplace inaccessible.

Reasonable adjustments for disability leave may include:

Adjustment Example
Time off for treatment Allowing regular time off for chemotherapy, dialysis, or therapy
Modified hours Reduced hours, flexible start/finish times
Phased return Gradually increasing hours after extended absence
Workplace changes Ergonomic furniture, accessible workspace, quiet room
Equipment Assistive technology, screen readers, standing desks
Role modification Removing non-essential tasks, reallocating duties
Working from home Allowing remote work where feasible

What is “reasonable” depends on the employer’s size, resources, and the impact on the business. A large employer is expected to make more adjustments than a small one.

While there is no statutory right to time off for medical appointments in general, the duty to make reasonable adjustments can include allowing time off for disability-related medical appointments. This is particularly relevant where:

  • The appointment is for ongoing treatment (e.g., physiotherapy, mental health therapy).
  • The employee’s condition meets the Equality Act definition of disability.
  • Attending the appointment during working hours is the only practical option.

You should agree a reasonable arrangement — for example, allowing the employee to attend appointments during working hours and make up the time later.

Disability leave vs. sick leave

Disability leave is conceptually different from sick leave:

Element Sick leave Disability leave
Reason Employee is incapable of work Employee is managing a disability
Duration Until fit to return Ongoing, as needed
Pay SSP or contractual sick pay Normal pay (adjustment, not absence)
Legal basis Employment Rights Act 1996 Equality Act 2010
Holiday accrual Yes (up to 54 weeks) Yes — employee is still working

Many employers create a separate “disability leave” category for absences related to disability — this is best practice and helps distinguish disability-related absence from general sickness.

Employer obligations

UK employers have five core duties around disability leave:

  1. Make reasonable adjustments — explore what adjustments would enable the employee to work.
  2. Do not dismiss because of disability without exhausting all alternatives.
  3. Allow time off for disability-related treatment and appointments.
  4. Keep records of adjustments explored and implemented.
  5. Avoid discrimination — treating an employee less favourably because of disability is unlawful.

Disability discrimination

The Equality Act 2010 prohibits four types of disability discrimination:

  1. Direct discrimination — treating a disabled person less favourably because of their disability.
  2. Indirect discrimination — applying a provision that puts disabled people at a particular disadvantage.
  3. Discrimination arising from disability — treating someone unfavourably because of something arising from their disability (e.g., dismissing them for disability-related absence).
  4. Failure to make reasonable adjustments — not adjusting working practices when you know or ought to know the employee is disabled.

Disability discrimination claims carry no cap on compensation — the tribunal can award unlimited damages.

For more UK context, see our guides to fitness to work, long-term sick leave, and carer’s leave.

Frequently asked questions

Is there a statutory right to disability leave?

Not a separate right. However, the Equality Act 2010 requires reasonable adjustments, which can include time off for treatment and modified working arrangements.

Does my condition have to be diagnosed to qualify as a disability?

No. The legal test is functional impact, not diagnosis. If your condition has a substantial and long-term adverse effect on daily activities, it may qualify as a disability under the Equality Act.

Can my employer refuse reasonable adjustments?

Only if they can demonstrate the adjustment is not reasonable — considering the cost, practicability, and impact on the business. Failure to make reasonable adjustments when required is unlawful discrimination.

Does disability leave affect my holiday?

No. If you are working (even with adjustments), statutory holiday continues to accrue. If you are off sick due to disability, holiday accrues for up to 54 weeks.

Only after all reasonable adjustments have been explored and a fair capability process has been followed. Disability discrimination claims carry no cap on compensation — seek legal advice before any dismissal.

Putting it into practice

Five steps keep your disability leave process fair and legally compliant:

  1. Identify whether the employee qualifies as disabled under the Equality Act — do not wait for them to ask.
  2. Explore reasonable adjustments proactively — involve occupational health early.
  3. Create a separate disability leave category for disability-related absence.
  4. Document all adjustments explored and the reasons for any that were not implemented.
  5. Train managers to handle disability-related requests without discrimination.
You can take advantage of the free 14 days trial and explore Leave Balance.

A leave management system that tracks disability leave separately from sick leave, records adjustments, and manages time off for treatment keeps the Equality Act obligations structured and compliant.

Sources

Last updated: 26 July 2026. This article is general information, not legal advice. Disability leave and reasonable adjustments carry significant legal obligations — seek legal advice for specific situations.