These are starting points, not eligibility decisions. The competent Austrian authority decides an application based on your evidence and current rules.
EU, EEA or Swiss citizen
You generally use EU free-movement rules rather than a Red-White-Red Card. For a stay longer than three months, check the residence conditions and registration-certificate procedure. Regulated professions can still require professional recognition.
Non-EU citizen seeking work
A Red-White-Red Card or EU Blue Card may be relevant, depending on the job, qualifications, salary and other criteria. The exact route matters: a job offer, points estimate or tourist entry does not by itself grant permission to live and work in Austria.
Joining family in Austria
Your route depends on the sponsor's citizenship or residence title and your family relationship. Requirements can include income, insurance, accommodation and language evidence. Check the official family category before paying for translations or travel.
Studying in Austria
Admission to a course and permission to reside are separate questions. Entry and residence rules depend on citizenship and length of stay. Use OeAD's student guidance and your institution's admission instructions; a student route is not automatically a full work permit.