Picture this. You wake up with a stomach bug, ring your manager, and get told to bring a doctor's note when you are back. Can your employer ask for a doctor's note that early, or are they stretching the rules?

In most cases they are stretching them. The law gives you the first 7 days to explain your absence yourself, and a GP is not part of that picture.

What the Law Says About a Doctor's Note in Week One

For the first 7 calendar days of sickness, you can self-certify. That means you tell your employer you were ill, say which days you missed, and sign a short statement. For Statutory Sick Pay, nobody can make you produce medical proof during this time.

A fit note only becomes a legal requirement from day 8. A GP, nurse, pharmacist or another registered professional writes it, and it costs you nothing at that stage.

Days 1 to 7 need only your own word, a fit note is needed from day 8

Weekends and bank holidays count towards the 7 days. A Friday to Thursday absence uses all seven, even if you only work Monday to Friday.

When Your Employer Can Ask for Proof

There is a difference between what the law demands and what your employer may ask. Three situations come up again and again:

  • Your contract or staff handbook sets its own rules for company sick pay, such as full wages for a few days
  • Your employer wants a written statement from you, like a self-certification form
  • Your attendance record raises a concern, so they ask for more detail or an occupational health check

In each case, your employer is checking an extra benefit or a pattern. It is not overriding your right to self-certify for Statutory Sick Pay. Check what your contract says about company sick pay before you decide how to respond.

Example: Tom, off for two days

Tom has a migraine on Monday and Tuesday. His manager asks for a doctor's note. Tom checks his handbook and finds it only asks for a signed self-certification form for absences under 8 days. He sends the form on Wednesday, and payroll processes his sick pay as normal.

What to Say When Your Manager Asks for a Doctor's Note

Stay calm and polite. Most managers repeat a rule they half remember, and a short, friendly reply clears it up. Something like this works:

Short reply
Hi [Manager's name],

Thanks for checking. I was off sick for fewer than 8 days, so I understand a fit note is not needed yet. I have attached a signed self-certification form with my dates. If the company policy asks for anything else, please point me to it and I will follow it.

Thanks,
[Your name]

Keep it factual and leave out any argument. If your employer has a written policy that asks for more, follow it and ask HR where you can read it. No form to hand? A letter generator can build one in minutes.

Does a GP Charge for a Note?

A fit note from day 8 is free. For the first week, some surgeries refuse to write anything, because there is no legal need. Others charge a private fee for a letter, and the amount varies from one practice to the next.

You should not have to pay or book a GP appointment just to satisfy a manager who wants a note for a one or two day illness. If your employer insists on a medical letter that early, they should usually cover the cost.

What Happens If You Do Not Provide One?

If you follow the legal rules and your own contract, your Statutory Sick Pay should not stop. Problems start when your workplace has a clear written policy and you ignore it. Your employer may then raise it as a conduct issue, and could delay company sick pay while the matter is sorted.

If you reach that stage, keep copies of your messages and forms, and ask for the policy in writing. The Acas helpline is free and gives plain advice on disputes like this. For what your pay looks like in these early days, see our page on sick pay in week one.

Questions People Ask About Doctor's Notes

Can my employer ask for a doctor's note for one day off?

They can ask, but the law does not require you to provide one. For the first 7 days you can self-certify, unless your contract sets a stricter rule for company sick pay.

Can an employer force me to see a doctor?

Not for a short illness. In some cases, such as repeated absence, an employer may ask for an occupational health check, but it must follow a fair process.

Do I have to pay for a doctor's note?

A fit note from day 8 is free. For the first week, a surgery may charge a private fee for a letter, and the amount varies by practice.

Can I be sacked for not giving a doctor's note?

An employer can start a disciplinary process if you break a clear, reasonable absence policy, but it must act fairly. Speak to Acas if this happens to you.

Can my employer ask what is wrong with me?

They can ask for a short reason, such as a stomach bug or a cold. You do not have to share medical details.

Must my employer accept my self-certification form?

For Statutory Sick Pay in the first 7 days, your employer should accept your own statement. They may ask you to use their form or to follow their reporting steps.

HR

Reviewed by our HR & Employment content team. Checked against current GOV.UK and ACAS guidance on Statutory Sick Pay and sickness absence. Last reviewed 30 October 2026.