You might need a visa even for the shortest of stays in Austria. Austria has three types of visa: type A (airport transit visa), type C (short-stay visa) and type D (long-term visa). Type D visa: long-term visaType D visas generally permit holders to stay between 91 days and six months. READ ALSO: How to write an invitation letter for visitors to AustriaType D visas can only be issued abroad by an Austrian representation. AdvertisementAll third-country nationals need this visa if they intend to stay in Austria for over 90 days in 180 days.