Sick leave notification
I am unwell and unable to attend work from [start date] to [estimated return date]. I will update you if this changes and will provide a fit note if my absence exceeds 7 days.
Sick Leave and Medical Notes in the United Kingdom
Know when to use a self-certification sick note, when to get a doctor’s fit note, and how to notify your employer in the UK.
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Quick answer
For up to 7 days off work in the UK, use a self-certification form. After 7 days, get a doctor’s fit note and send it to your employer.
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Official sources for United Kingdom
- UK Government - Statutory sick pay (Government) — https://www.gov.uk/statutory-sick-pay
Confirm employer obligations and when a fit note is required. · Checked 2026-05-30 - UK Government - Fit note (Government) — https://www.gov.uk/government/publications/fit-note
Confirm how fit notes work and who can provide them. · Checked 2026-05-30
How to verify official information
Before applying, paying a fee, travelling, or submitting documents, confirm the latest requirements with the responsible official authority. Rules, fees, forms, deadlines, and office procedures can change.
Use the official government portal, embassy or consulate, police or cybercrime authority, bank, airline, employer, tax authority, or consumer protection authority depending on the problem. Avoid unofficial paid sites that imitate government services.
Who this is for
This guide is for employees and contractors in the UK who need to take sick leave and understand the required paperwork.
Checklist
- Notify your employer promptly
- Use self-certification for days 1–7
- Get a fit note for longer absence
- Send the note to HR or payroll
- Keep a record of your illness dates
Templates
Self-certification for the first week
In the UK, you do not need a doctor’s note for the first 7 calendar days of sickness. Use a self-certification form from your employer or HMRC to explain your absence.
Fit note after 7 days
If you are ill for more than 7 days, get a fit note from a GP or authorised clinician. Send this to your employer to support statutory sick pay and absence handling.
What employers can ask for
Your employer can ask whether you are fit for work, but not for specific medical details. The fit note can state whether any adjustments would help you return to work.
Keeping medical records
Keep a note of your symptoms, dates off work, and any medical advice you receive. This can help if your employer requests additional evidence later.
Returning to work safely
If your fit note recommends adjustments, discuss them with your employer. A phased return or temporary changes can be part of a safe recovery plan.
Required documents or information
- Self-certification form for the first week of sickness
- Fit note from a doctor for extended absence
- Employer sick pay or absence policy
- Dates of illness and any medical appointments
- Contact details for your employer’s HR or payroll team
Common mistakes
- Waiting too long to tell your employer about your illness.
- Assuming you need a fit note for the first week.
- Sending a fit note late and missing pay entitlement.
- Giving too much medical detail to the employer.
- Not checking the employer’s return-to-work policy.
FAQ
- Can I use a fit note for a short illness?
You only need a fit note after seven days of sickness. For a shorter absence, use self-certification unless your employer asks for medical evidence sooner.
- Does my employer have to pay me when I am off sick?
Your employer must pay statutory sick pay if you qualify, but your contract may offer better terms. Check your employer’s sick pay policy.
Related guides
Same topic in related countries
If your problem crosses borders, compare the same practical checklist in nearby or related country hubs.
Editorial note
This guide distills UK sick leave steps into employer notification and documentation requirements.
Last updated 2026-05-31 · Sources checked 2026-05-30.
Disclaimer: This page is practical information only. It is not legal, immigration, financial, medical, or official government advice. Rules, fees, deadlines, and procedures can change.
Independent practical guides. Official source links where available. No account required. Always confirm final requirements with the responsible authority.