If you have to stay at home because of coronavirus and you need a note for your employer, please use the service on the NHS website.
If you have to stay at home but feel well enough to work, ask your employer if you can work from home. If you can work from home, you will not need an isolation note.
You can also use this service for someone else.
If you are not sure if you need to stay at home, get the latest NHS advice on coronavirus.