Short Answer
Engaging in work activities while on official sick leave can legally invalidate your right to continued salary payments and insurance benefits.
Your sole legal obligation during this period is to focus entirely on your physical and mental recovery.
What Most Expats Don't Realize
You felt a sense of duty and replied to several "urgent" client emails while you were supposed to be recovering at home. You didn't know that your digital activity could be used as evidence that you were actually fit for work, leading your insurer to freeze your "Krankengeld" (sick pay) benefits. You lost over €1,200 in expected income because the system viewed your productivity as proof that your sick note was fraudulent.
What To Do
- Close your laptop and log out of all work-related communication channels the moment your sick leave begins.
- Email your team a final message stating that you are strictly "offline" and will not be monitoring messages.
- "Ich darf während meiner Krankschreibung nicht arbeiten." (I am not allowed to work during my sick leave.) — Say this to any manager who attempts to contact you for "quick" tasks.
The Truth
Germany treats sick leave as a total cessation of professional duties. Working "just a little" is considered a breach of your duty to recover and can be used as legal grounds for termination in extreme cases.