Report it to the bank with proof of inheritance, settle with the other heirs, and remember the tax filing. Newly disclosed assets are declared to the tax office on the SD-Z2 form (an inheritance-acquisition notification that exempts close family from inheritance and gift tax). The deadline to file it runs only from the day you learned about the account.
Put your most important documents in one secure place
Sejf Życia is an encrypted space for documents, access details and instructions for loved ones. Only you decide who gets access, and when.