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Can Employers Override Doctors’ Sick Notes?

Summary

  • Employers in the UK should generally not override a doctor’s sick note, as it is expert medical evidence on an employee’s fitness for work. 
  • While not legally binding, ignoring it carries legal risks, including claims for unfair dismissal, discrimination or health and safety breaches. 
  • Employers can question a sick note by seeking a second medical opinion or occupational health assessment rather than disregarding it. 
  • This guide explains whether employers can override sick notes for business owners and employers in the UK, prepared by LegalVision, a commercial law firm that specialises in advising clients on employment law.
  • It provides a practical explanation of employer responsibilities, legal risks and appropriate steps when managing employee sickness absence.

Tips for Businesses

Do not ignore a sick note without strong justification. Discuss adjustments with the employee and follow medical advice where possible. If concerns arise, seek a second opinion rather than overriding it. Keep clear records and act cautiously, as mishandling sickness absence can lead to legal claims.

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A sick note, or “fit note”, is a medical opinion from a healthcare professional about whether an employee is fit for work and what adjustments may be needed. For your business, overriding it carries legal and practical risk, as disregarding medical advice can lead to claims for unfair dismissal, discrimination or breach of duty of care. While the note is not strictly binding, you should treat it as expert evidence and proceed cautiously, particularly where health conditions or disabilities are involved.  This article explains whether employers can override sick notes, when it may be possible and the risks you need to manage.

Key Statistics

  1. 52%: 52% of employees with sickness absence in the past year were required to provide a fit note after day 7, which employers cannot simply override.
  2. 27%: 27% of employees who took sickness absence received a fit note from a doctor or healthcare professional in the past year.
  3. 93%: 93% of fit notes issued in 2025 were marked “not fit for work”, though employers must still consider reasonable adjustments rather than overriding them.

Sources

  1. Department for Work and Pensions: Survey of Employees and Self-Employed Workers 2024 to 2025
  2. Centre for Social Justice: Analysis of fit notes issued in 2025

What is a Doctor’s Sick Note?

A doctor’s sick note, which you may hear people refer to as a ‘fit note’ or a ‘medical statement’, is a letter from a medical professional that details that your employee:

  • is not fit to work; or
  • may be fit to work if you made some adjustments for them.

You will usually require your employees to produce a doctor’s sick note when they have been off work due to sickness for more than seven days. A doctor’s note acts as evidence in your sick leave management process. You should consider the sick note and discuss with your employees how you can help them return to work and support their health and well-being.

Can I Override a Doctor’s Sick Note?

There is no straightforward answer as to whether you, as an employer, can override a sick note. However, you should avoid overriding a doctor’s note as it is a medical professional’s opinion on your employee’s ability to work. Therefore, you should respect the advice given. 

However, if you doubt the advice, you should proceed carefully and consider consulting with an employment lawyer. 

For example, if you doubt the advice on the fit note, you could request a second opinion from another medical practitioner instead of ignoring it. You may also consult an occupational health professional. It is crucial to speak to your employees openly about their health circumstances and to obtain their consent to any second opinion. Additionally, you should keep a detailed written record of all the steps you take, including justifications. 

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What Are My Responsibilities Concerning Sick Leave and Fit Notes?  

When your employee produces a doctor’s sick note and returns to work, this should guide you in ensuring they can get back on track smoothly. Conversations with them will also aid this. For example, you may need to make reasonable adjustments to their:

  • workload; or
  • environment.

However, you are not legally bound by the advice given in the fit note. Instead, you and your employee may choose other options to support them in returning to work. However, if your employee has a disability and needs reasonable adjustments, you are legally bound to make them.

What Are the Possible Consequences of Overriding a Doctor’s Sick Note?

You should generally not override a doctor’s note as you could see adverse consequences. For example, you could face legal proceedings by not abiding by the advice in a doctor’s sick note, such as requiring your employee to lift heavy objects when it says they should avoid this. You could face a claim in an employment tribunal for:

Where you assert your right to take the advice of a second medical opinion, you must be able to show an employment tribunal why you took this advice and not that in the doctor’s sick note. 

Key Statistics

  1. 1,037: The Insolvency Service disqualified 1,037 directors for misconduct in 2024-25, often resulting in directors being forced out of their roles.
  2. 23,938: There were 23,938 registered company insolvencies in England and Wales in 2025, frequently leading to removal or forced resignation of directors.
  3. 736: Of the 1,037 disqualifications in 2024-25, 736 related to abuse of Covid financial support schemes, highlighting risks of personal liability forcing directors out.

Sources

  1. Insolvency Service: Annual Report and Accounts 2024-2025
  2. Insolvency Service: Company Insolvency Statistics December 2025
  3. Insolvency Service: Disqualified more than 1000 directors in 2024-25

Key Takeaways

If your employees have been off work for more than seven days, you may require them to produce a doctor’s sick note. This will detail whether they are fit to work and what you can do to enable them to return to their role. Generally speaking, it is good practice not to override a doctor’s sick note as it is a medical expert’s opinion on a medical matter. Although you are not legally bound by the advice given in a doctor’s sick note, if your employee has a disability and requires reasonable adjustments, you have a legal duty to make these. 

If you need help as an employer understanding doctor’s sick notes LegalVision provides ongoing legal support for businesses through our fixed-fee legal membership. Our experienced employment lawyers help businesses manage contracts, employment law, disputes, intellectual property, and more, with unlimited access to specialist lawyers for a fixed monthly fee. To learn more about LegalVision’s legal membership, call 0808 196 8584 or visit our membership page.

Frequently Asked Questions

What is a sick note or fit note?

Most employers require a sick note or fit note for employees who have been off work sick for more than seven days. This note details the employee’s illness and reasons for taking sick leave.

What are the potential consequences of overriding a doctor’s sick note?

If you override a doctor’s sick note, you could face a claim in an employment tribunal. 

Can you seek a second medical opinion on a sick note?

Yes, you can seek a second medical opinion if you reasonably doubt the advice. You must justify why you rely on alternative medical evidence instead of the original note.

What risks arise from overriding a sick note?

You risk claims such as unfair dismissal or discrimination if you ignore medical advice. Failing to follow recommendations may also breach your duty to protect employee health and safety.

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Lewis Njie

Trainee Solicitor | View profile

Lewis is a Trainee Solicitor in LegalVision’s Employment team and assists on a broad range of employment matters, including advising startups and more established employers with employment law queries to drafting and ensuring compliance. He graduated from the University of York with a Bachelor of Laws. During his time at York, Lewis championed social mobility as President of the 93% Club York and specialised in creating legal-based technological solutions for employment issues.

Qualifications: Lewis is a Trainee Solicitor in LegalVision’s Employment team and assists on a broad range of employment matters, including advising startups and more established employers with employment law queries to drafting and ensuring compliance. He graduated from the University of York with a Bachelor of Laws. During his time at York, Lewis championed social mobility as President of the 93% Club York and specialised in creating legal-based technological solutions for employment issues.

Read all articles by Lewis

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