The paper’s purpose is to highlight some selected legal aspects related to the issue of the inheritance of funds deposited in a bank account, with particular emphasis on the banks’ obligations in the event of the death of the bank account holder. Attention will be paid to the situation where the testator did not leave any instructions on the funds' fate, particularly in so-called „dormant” accounts. The discussion will be complemented by an indication of the legal solutions allowing the account holder to submit an instruction in the event of death with regard to the funds deposited in the bank account and the related information obligations of the bank, as well as the possibility of drawing up a legacy by vindication whose object is the funds.