Austria's residence permit system, however, may mean that citizens of some countries, like the UK, US, or Canada - can travel to Austria visa-free for up to three months and go straight to applying for their residence permit while already in Austria. As mentioned above, any non-EU national staying in Austria for longer than three months will need to apply for a residence permit - regardless of whether they also needed a visa to enter Austria in the first place. If your status in Austria changes - for example if you originally came to study in Austria but then managed to find a job after graduation - you'll need to apply again for the corresponding residence permit, unless you have permanent residence in Austria.