Residential Card Needed for Work in Hungary with our guide for third-country nationals, covering inquiries, documents, and renewals. In Hungary, a residential card needed for work in Hungary is an essential document for foreign nationals planning to live and work in the country for an extended period. This card, known as the Residence Card, serves as proof of your legal stay and employment status in Hungary. It is required for individuals from non-EU/EEA countries who intend to reside and work in Hungary for more than 90 days.