If you’re off work sick for 7 days or less, your employer should not ask for medical evidence that you’ve been ill. Instead, they can ask you to confirm that you’ve been ill. You can do this by filling in a form yourself when you return to work. We call this self-certification.
If you have been sick for more than four days in a row, but less than seven, you can self-certify your illness using a SC2 form. You can obtain this form from your employer or the HMRC website. If you are unwell for more than four days you are advised to contact the surgery to assess your fitness to work.
Find out more about sick notes on the NHS website.