Hi everyone.
So I am doing my swiss tax form for the first time and have one unresolved question.
I have a lot (like 20 or so) of empty current accounts left in my home country. Banks always open them with time deposits and apparently never close then you get your money back. I don't use them, they are free for me, and have 0 balance for the whole year.

Do I have to report all this accounts on my tax from?

Not if they've generated no interest in the year. i.e. if it's generated 500 currency units but now has a 0 balance, you need to declare it.