The microcensus provides information about housing and internationally comparable data about employment, unemployment and education. As a sample survey it complements the since 2011 register-based census. Further, every year, a small set of questions concerning important topics, so called modules, are added. The microcensus ensures up-to-date statistics on housing and employment, so that the most important changes of the economic and social situation in Austria can be quickly detected.
Roughly 22 500 households are surveyed each quarter in Austria. They are randomly drawn from the Central Population Register. Within ten years a private household can be surveyed in up to five consecutive calendar quarters.