The tax administration collects for catholic, protestants and jewish.
I read that the muslims are trying to organize similar tax collection with the federal administration.

The interesting thing, is that they have 2 other fields in the tax forms and tax software (and obviously not collecting money for these options):
- other religion
- no religion

So why do they need this distinction?
I'd say if you are orthodox, muslim, hinduist, buddhist, sikh, shintoist or any other religion chose "no religion" to be on the safe side and avoid future taxes