Calling in sick via WhatsApp: is that actually allowed?

11-11-2025

You feel unwell and really can't manage to work. Of course, you need to report your sickness to your manager, usually by calling. But can you also send a message? 

What the law says

The law does not specify how you should report your sickness. Therefore, your employer cannot require you to call only. However, there might be an absence protocol in your company. Does it state that you must call? Then you must do so. If it says nothing about it, then you can also message or email, as long as you can prove that your notification has been received.

Preferably confirm your sickness notification in writing as well, for example by e-e-mail. An employer cannot refuse a sickness notification.

What your employer can ask

Your employer can ask how long you expect to be ill and how they can reach you. But not what exactly is wrong with you or what treatment you are receiving, as that is private. Only the company doctor can ask questions about that and give advice on what you might still be able to do.

If you are ill, you do not need to have your phone on hand all day. However, it is good to respond occasionally if your employer asks something. This helps prevent misunderstandings.

Check what applies to you

  • Check if there is an absence protocol and read what it states.
  • Report your sickness on time and ensure you have proof of this.
  • If you are unsure about what you can or cannot do, request an appointment with the company doctor.