Thanks for the suggestion Snow Leopard, I'll give it a look

SBQ, yes re CRS, ASB informed me they would be reporting information to the tax authorities of my resident country - anecdotally I've heard that what financial institutions are reporting is only cash held in bank accounts and interest derived from (not transactions or stock positions) so not necessarily an onerous reporting requirement for them

So who knows, for chrisw, maybe it is cherrypicking, or German requirements or...