If you add deductions in the tax software (e.g. in ZH), do you actually upload a receipt even in the cases where they say it’s “Freiwillig”/Voluntary? So far I did, but I just wonder whether I make my life unnecessary hard and they would just “trust” about these things. Some deductions (e.g. Pillar 3a) you are forced to upload a receipt, while for others you are not.
E.g. for Health Insurance premium they also write “Freiwillige Belege hochladen”, so what happens if one doesnt upload anything and just states the amount? More work later because they ask for it?