You do not require a doctor’s ‘fit to work note’ for any illness lasting seven days or less. Your employer may however require you to complete a self certification form (SC2) You can obtain this form from your employer or by visiting the HRMC website.
Evidence that you are sick
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). It is up to your employer to decide whether you are incapable of work. A medical certificate, now called a statement of fitness to work (see below) is strong evidence that you are sick and would normally be accepted unless there is evidence to prove otherwise.
Statement of Fitness for Work
The Doctor will provide you with a Statement of Fitness for Work (‘Fit Note’) if you are still not well enough to work. Your employer will most likely request this statement as evidence to support payment of Statutory Sick Pay (SSP). 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. Further information is available at the Direct.Gov website.
Private Certificates
If you or your employer require further information concerning your period(s) of illness, then your doctor may require to issue you with a letter. Please note that a charge will apply for this service.