Similarly in Lithuania, it takes me few minutes as well: 1) Login to e.bank (I use mobile signature attached to a SIM card) 2) press link to a local "IRS" equ

Similarly in Lithuania, it takes me few minutes as well: 1) Login to e.bank (I use mobile signature attached to a SIM card) 2) press link to a local "IRS" equivalent 3) check and confirm the prepared tax declaration (usually everything is already there) During the whole process I have to enter my bank ID and PIN code once.