Work Adjustments Certificate
Apply online anytime, no appointment needed.
Get a valid, confidential work adjustment medical certificate from a UK registered GP, ideal for adjusting duties, hours, or environment due to health conditions.
Complete a secure online questionnaire, upload a short video if needed, and receive your signed certificate by email. Supportive, evidence-based, and employer-accepted. From just £47.
✓ Most work adjustment medical certificates are sent same day, with delivery by 9AM the next-morning.
Let's get started 
Dr Maria Knobel Medical Director 
Receive a full refund if we can’t provide a certificate
How It Works
Complete a short online questionnaire
No appointment required. Complete a short medical questionnaire and upload any supporting evidence.
Doctor reviews your evidence
A GMC-registered doctor reviews your submission individually. No automated approvals.
✔ Full refund if the GP cannot issue.
Receive your certificate
Certificates arrive most same day, all by 9AM next morning, delivered as a signed PDF direct to your inbox.
Very happy, I ordered my Medical Certificate in the early morning hours and before noon time of same day I had it on my inbox. Speedy service and they present the health condition precisely, get to the point.
They meet the incredibly fast turnaround stated (certificate/letter sent before 9am the following morning if the doctor feels that a letter/certificate is appropriate) which is incredibly quick and I am really grateful for the help provided!
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Second time using this company and they are fabulous! Always great, fast, friendly service. Highly recommend!
This was my second time using Medical Cert, and once again the service was exceptionally quick and professional. Everything was handled efficiently, with clear communication throughout.
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Fast efficient service for medical certificates. I used the not fit to fly service and was provided with a certificate the next day, the price is very reasonable and enabled a flight credit refund with my airline. Would recommend and would use again if needed.
A fast and efficient service. It wasn't complicated and the Fit-to-fly note was accepted by the Airport without any further questions. Thank you.
Ideal for me, I am looking to get a certificate for some medical issues I have. So this is the perfect solution for me, uploading docs was easy and the forms very straightforward to fill in. Will definitely use them again. Many thanks.
Excellent service. Easy to use and certificate issued in less than 24 hours. £39 as opposed to the £150 my GP charges. Highly recommended.
Quick and reasonably pain-free. Received their standard certificate as well as my requested bespoke certificate, by email, by 9am the following morning. Both completed properly, signed and stamped as required. More expensive than my GP, but infinitely quicker and easier.
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What Is a Work Adjustment Medical Certificate?
A work adjustment medical certificate — also known as an adjustments to work duties letter — is a medical document from a GMC-registered doctor outlining recommended modifications to your work responsibilities based on your health condition. It communicates to your employer what changes are needed to allow you to work safely and effectively while recovering from illness or managing an ongoing condition.
What it does
Unlike a sick note to take off work, which certifies that you are unable to work, a work adjustment certificate confirms that you can continue working — subject to specific modifications. It bridges the gap between full sick leave and normal duties, enabling a graduated return or an adjusted working arrangement that protects your health.
This mirrors the “may be fit for work” assessment on an NHS Fit Note, but in a more detailed, standalone format appropriate for private documentation of specific adjustment recommendations.
Sick Note vs Work Adjustment Certificate — Which Do You Need?
🔧 Work Adjustment Certificate
- ✔ You can work but need modifications to your duties or environment
- ✔ Supporting a phased return after sick leave
- ✔ Managing a chronic condition while remaining employed
- ✔ Formally documenting a reasonable adjustment request
- ✔ Returning early before a sick note expires with conditions
📋 Sick Note (Fit Note)
- ✔ You are unable to work in any capacity
- ✔ Absence for 8 or more consecutive calendar days
- ✔ Certifying absence to access Statutory Sick Pay
- ✔ Short-term acute illness preventing any attendance
If you are currently on stress leave or recovering from an illness and want to return to work in a modified capacity, a work adjustment certificate is the appropriate document. If you need to certify full absence, see our fit to work certificate for clearance when returning after sick leave.
Common Work Adjustments Covered
Our doctors can recommend a wide range of modifications where clinically appropriate. Adjustments are tailored to your specific condition and role. Certificates are suitable for low-risk, non-hazardous workplaces — high-risk environments (plant operators, scaffolding, road work) require specialist occupational health assessments.
Reduced working hoursPart-time or reduced hours during recovery, increasing progressively.
Remote or home workingWhere role permits, working from home to reduce commute fatigue or physical demands.
Modified dutiesTemporary removal from tasks that aggravate your condition — manual handling, sustained standing, client-facing roles.
Ergonomic or physical modificationsRecommendations for adapted equipment, adjusted workstations, or physical access provisions.
Phased return to full dutiesA graduated plan from light duties back to full responsibilities.
Flexible start or finish timesAdjusted patterns to accommodate medication schedules, fatigue cycles, or treatment appointments.
Reduced targets or workloadTemporary reduction in performance targets or volume of work during recovery.
Time off for medical appointmentsAcknowledgement of ongoing treatment needs and support for appointment attendance.
Conditions Commonly Supported by a Work Adjustment Certificate
Adjustments can be appropriate for both physical and mental health conditions — subject to clinical assessment. Common presentations include:
The Legal Framework — Reasonable Adjustments and the Equality Act 2010
What the law requires
Under the Equality Act 2010, employers have a legal duty to make reasonable adjustments for employees with disabilities — defined as physical or mental impairments with a substantial, long-term adverse effect on normal day-to-day activities. This duty is triggered when the employer becomes aware (or should reasonably be aware) of a condition placing the employee at a substantial disadvantage.
A work adjustment certificate from a GMC-registered doctor provides the medical evidence that both supports your request and puts your employer on notice of your clinical needs. Where an employer fails to make reasonable adjustments despite medical evidence of need, this may constitute disability discrimination under the Act.
Not all conditions requiring adjustments meet the legal disability threshold — shorter-term or lower-impact conditions may still warrant adjustments as good practice. Many employers accommodate adjustment requests without requiring formal legal justification.
For formal disputes, ACAS offers free guidance and early conciliation services. Access to Work grants are also available through DWP for assessments and equipment costs linked to disability at work.
How to Get a Work Adjustment Medical Certificate
Complete a medical questionnaire
Describe your health condition, how it affects your ability to perform your current duties, and what specific adjustments you are seeking. Include your job role and working environment — the more specific you are, the more tailored your certificate will be.
Upload supporting evidence
A brief video describing your symptoms and working situation, or supporting documentation such as a prescription, previous GP letter, or hospital discharge notes. Evidence of your condition helps the doctor make well-informed recommendations.
GMC-registered doctor reviews and issues your certificate
One of our experienced GPs reviews your submission the same day and — where clinically appropriate — issues a certificate specifying recommended work adjustments. The certificate will detail your condition, the adjustments recommended, and their expected duration.
Deliver to your employer and agree a plan
Your certificate is delivered by email same day or by 9AM next morning as a signed PDF. Present it to your employer or HR department as the basis for a return-to-work or ongoing adjustment discussion. Each certificate includes a unique reference number verifiable at verify@medicalcert.co.uk.