This is not a limit on transactions, it is threshold beyond which additional bookkeeping needs to be done. Five-dollar deposit: only bookkeeping as is needed to

This is not a limit on transactions, it is threshold beyond which additional bookkeeping needs to be done. Five-dollar deposit: only bookkeeping as is needed to satisfy the bank and yourself that the $5 will be available to yourself in the future. Five million dollar deposit: extra bookkeeping, and if it's in stacks of twenties, warn the branch manager a few days in advance due to the physical requirements for handling all those twenties. If the new AU bill would say, "Don't deposit 5 million AUD in physical cash" then that's a problem. If it would say, "Don't deposit 20 AUD in physical cash then that's an absurd problem (IMHO). In the USA the bank branch manager has to achieve some level of non-surprise that the transaction is taking place (Know your customer) but it seems like that wouldn't necessarily block a transaction. I know people whose cautious banking habits are still influenced by the banking problems of the 1930's. I think this constrains the politically possible banking changes in the USA, maybe. Does such caution have any impact in Australia?