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uk Work & employment crises medical note in 24 hours • told to get a sick note • fit note deadline • threatened removal from duties • taken off work duties • sudden sick leave demand • employer wants doctor note • self certify sickness • off sick less than 7 days • urgent fit note request • workplace sickness evidence • manager demands medical proof • return to work note pressure • sickness absence rules uk • medical evidence for absence • HR demands sick note • panic about sick note • can't get GP appointment fast

What to do if…
you are told you will be taken off work duties unless you provide a medical note within 24 hours

Short answer

Reply in writing immediately, ask whether this is about sickness absence evidence or “fitness/safety for duties”, and request a short extension while you provide self-certification (the usual approach for the first 7 calendar days) and arrange any medical evidence they genuinely need.

Do not do these things

  • Do not forge, alter, or “borrow” a medical note.
  • Do not resign on the spot, or agree to unpaid leave, just to make the pressure stop.
  • Do not overshare your diagnosis or private medical details to a manager (you can describe functional impact instead).
  • Do not ignore the message — silence can be misread as refusal.
  • Do not rush into paying privately for a letter without first confirming what evidence they’ll accept and who will cover any fee.

What to do now

  1. Get the demand into writing (or confirm it in writing).
    Send a short message that records: the 24-hour deadline, what “taken off duties” means (sent home? unpaid? redeployed? suspended?), and who is making the decision.

  2. Ask what they’re actually asking for — absence proof, pay evidence, or safety/fitness.
    Request:

    • the relevant sickness/absence or fitness-for-duty policy wording
    • what counts as acceptable evidence by tomorrow (self-certification, email confirmation, appointment confirmation, discharge/attendance letter)
    • whether this affects Statutory Sick Pay (SSP), contractual sick pay, or just which duties you can do

  3. State the UK baseline (calmly) and offer a workable alternative.
    Say: “For the first 7 calendar days off sick, employees generally do not need a fit note from a healthcare professional and can self-certify. I can provide self-certification now and I’m arranging further evidence if needed.”

  4. If SSP is involved, use the SSP rule to slow down escalation.
    Ask HR to confirm they are following SSP rules: employers can only ask for a fit note when someone has been off sick for more than 7 days in a row (including non-working days), and they cannot withhold SSP just because a fit note arrives late.

  5. Create “proof of action” within 24 hours (even if you can’t get a fit note).
    Do at least one:

    • submit your employer’s self-certification method (often a form or an email); if you need a template, HMRC’s “SC2” self-certification form is commonly used
    • request a GP/online consultation or use your GP practice’s fit note request route and keep the confirmation
    • if you were seen by a hospital/clinic, ask for an attendance/discharge letter or summary confirming you were seen

  6. If they insist on “evidence” in the first 7 days, address fees and responsibility.
    Reply: “If you require clinician evidence within the first 7 days, please confirm what you need and whether the organisation will cover any fee the healthcare professional may charge.”

  7. If this is really about safety/fitness for specific duties, propose a temporary solution instead of being removed.
    Ask: “Can we agree temporary adjusted duties / a restriction on specific tasks / remote work while I obtain medical evidence?”
    Also ask HR about an occupational health referral if your workplace uses it.

  8. If the issue might be long-term or recurring, use reasonable-adjustment language early.
    In writing: “I’m requesting temporary adjustments while I obtain medical confirmation focused on work impact and restrictions.” Keep it about what you can/can’t do.

  9. Bring in support quickly if you can.
    If you’re in a union, forward the written demand to your rep today. If not, keep a timeline and consider contacting ACAS for guidance on sickness evidence disputes and employer processes.

What can wait

  • You do not need to decide today whether to raise a grievance, start legal action, or leave your job.
  • You do not need to disclose detailed medical history — focus on dates, functional impact, and what you can provide now.
  • You do not need to “prove” you’re ill in real time; your job right now is to respond, document, and propose a realistic evidence timeline.

Important reassurance

A 24-hour ultimatum can feel impossible when access to appointments is limited. You can still protect yourself by responding promptly in writing, self-certifying appropriately, showing you are taking reasonable steps to obtain evidence, and asking for a proportionate, documented process.

Scope note

These are first steps only — to reduce panic decisions and prevent the situation escalating through silence or rushed concessions. Later steps (pay disputes, formal processes, disability-related adjustments) may need specialist advice.

Important note

This is general information, not legal advice. Workplace policies vary, but you can ask for clarity, proportionality, and a realistic timeframe — especially where appointment availability is the limiting factor.

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