European Union (EU) legislation on portability of supplementary pension rights accrued by private-sector migrant workers is at an early stage. The recent directive on this topic, aiming to preserve accrued pension rights at least at the level guaranteed in the case of within-borders mobility, emphasizes the role of country-specific legislation on pension portability issues. This paper analyses EU as well as national pension portability regulation for a representative sample of EU countries, in the light of recentempirical evidence outlining the role of occupational pensions in individual job mobility choices in these countries.