Recent increases in women’s self-employment in (most) welfare states are accompanied by the expansion of women’s “atypical” or “non-standard” work (Lewis 2001). More specifically, self-employed women tend to practice part-time worksignificantly more often than men across Western, Eastern and Southern Europe (Strohmeyer & Tonoyan 2006). Against this background, an important question arises, namely why do self-employed women become increasingly engaged in part-time work, and why does the share of part-time self-employment differ across countries? To explain this, we examine individualas well as institutional factors of the self-employed women’s choice of part-time work.