Anonymous bank accounts died with the Austrian Sparbuch some time ago, and banking confidentiality (ie that the bank does not snitch to the taxman) seem to be almost dead, but there are still some options open.
Austria: Bank confidentiality remains in place for local residents. That is, they will not snitch to the Austrian taxman, they will only snitch to the US taxman and to those in CRS countries. So, provide the right papers at account opening time, that proves that you live in Austria, and no taxman will be alerted. Move away, and tell the taxman, but not the bank (certain to break terms and conditions). Austria still have numbered accounts, for those who are concerned about the next massive leak from the resident IT guy.
Belgium: Bank confidentiality remains in place for local residents. Same operation as for Austria, no numbered accounts.
Bank in Non-CRS countries: Still a few around (but not many) where you can open an account, but getting harder.
Change of residence to Non-CRS country: Technically, the banks should not report you (neither to the residence country, not to your passport country), however they may still end up doing so to other CRS countries (e.g. your passport country) based on indicia. Not adviceable unless being reported will cause a problem.
Austria: Bank confidentiality remains in place for local residents. That is, they will not snitch to the Austrian taxman, they will only snitch to the US taxman and to those in CRS countries. So, provide the right papers at account opening time, that proves that you live in Austria, and no taxman will be alerted. Move away, and tell the taxman, but not the bank (certain to break terms and conditions). Austria still have numbered accounts, for those who are concerned about the next massive leak from the resident IT guy.
Belgium: Bank confidentiality remains in place for local residents. Same operation as for Austria, no numbered accounts.
Bank in Non-CRS countries: Still a few around (but not many) where you can open an account, but getting harder.
Change of residence to Non-CRS country: Technically, the banks should not report you (neither to the residence country, not to your passport country), however they may still end up doing so to other CRS countries (e.g. your passport country) based on indicia. Not adviceable unless being reported will cause a problem.