You do not require a doctor's sickness certificate for any illness lasting seven days or less. Your employer may however require you to complete a self-certification form (SC2) which is available from your employer, on the Gov.UK website, or in reception.
Statement of Fitness for Work - 'Fit Note'
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 for Work’ from your doctor is strong evidence that you are sick and would normally be accepted, unless there is evidence to prove otherwise. 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.
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.
Fit for Work
A new support service, designed to help working people who face long-term sickness absence return to work more quickly, is now available across the whole of England. The free and confidential service, known as Fit for Work, provides occupational health to employed people if they have been, or are likely to be, off work for four weeks or more. If you are employed and have been, or are likely to be, off work for four weeks or more, you can be referred by your GP or employer to the Fit for Work referral service, which is available across England and Wales. Ask your GP or employer about how you can be referred.
For more information, click here.