Been off work?
You do NOT require a doctor's sickness certificate for any illness lasting seven days or fewer. The official version here.
Your employer may however require you to complete a self-certification form (SC2) which is available from your employer or on the HMRC website.
If you are sick for more than seven days, your employer can ask you to give them some form of medical evidence to support payment of SSP (statutory sick pay). This will usually be a 'fit note'. Call us if you think you might need one.
It is up to you and your employer to decide whether you are capable of work or not. If there is doubt over this, your employer is legally obliged to employ an occupational health specialist to assist. A medical certificate, now called a 'Statement of Fitness for Work’ (see below) from your doctor is strong evidence that you are sick and would normally be accepted, unless there is evidence to prove otherwise.
You could also provide evidence from someone who is not a medical practitioner, e.g. a dentist. Your employer will decide whether or not this evidence is acceptable. If your employer has any doubts, they may still ask for a medical certificate from your GP.
Statement of Fitness for Work - ’Fit Note'
The 'fit note' was introduced on 6 April 2010. With your employer's support, the note will help you return to work sooner by providing more information about the effects of your illness or injury. Please telephone the surgery and we will contact you back.
For more information see the DirectGov website