The first and foremost thing is to report it to the local police station within 3 days of the loss, if it is abused, you will not be prosecuted for a possible crime. If you have other personally identifiable documents, such as a driver's license, you can already go to the document office or request a new person for one of the government windows. If you do not have another ID, you will need the following things to apply for a new ID. a birth certificate and a marriage certificate suitable for establishing the name, in the case of a registered name. a document authorizing the title of doctor, in the case of a doctorate. A valid citizenship certificate proving Hungarian citizenship, as well as an official ID card proving personal identity and address in case of returning from abroad.