If you are off work because of illness, your employer may ask you for evidence of your sickness absence.
For the first 7 calendar days of sickness, including weekends and bank holidays, you do not need a fit note from the practice. You can self-certify your absence during this period.
If you are off work for more than 7 calendar days, your employer may ask you for a fit note. A fit note is also sometimes called a sick note or Statement of Fitness for Work.
If your employer asks for a note before 7 days
If your employer insists on medical evidence during the first 7 days, this is not covered by normal NHS fit note arrangements and a private fee will apply.