According to the Austrian Nationality Act of 1985, Austrian citizenship is generally based on the principle of ius sanguinis and maintains a ban on dual citizenship. Citizenship in Austria can be acquired by descent, through naturalisation, by entitlement or also through a citizenship by investment programme. This makes Austria, one of the few European countries which adheres strictly to the ius sanguinis principle. In addition, although one can acquire Austria dual citizenship by naturalisation, this is seen as the last step of a successful integration process.
In general, the Austrian Nationality Act of 1985 does not allow Austria dual citizenship and therefore upon acquiring a Austria dual citizenship an Austrian citizen would have to renounce their original citizenship.
The only exceptions where dual nationality may be accepted are in instances where:
• Persons obtain two citizenships at the time they were born;
• The retention of the second citizenship is in the interest of the Republic of Austria for extraordinary service;
• Personal reasons are worth considering, such as when a naturalised person is unable to renounce the original citizenship; or
• Persons seek permission to retain the Austrian citizenship from Austrian Authorities before obtaining a second foreign citizenship. Failure to obtain prior permission would lead to loss of Austrian citizenship.