The rise of nonstandard and precarious employment is often linked to a growth in poverty among working people. However, theoretically the relationship is not straightforward, and the mechanisms through which new forms of work translate into poverty cannot be tested easily as a result of data limitations. This contribution demonstrates some of the possibilities and pitfalls, based on a very recent comparative study conducted by The Netherlands Institute for Social Research|SCP. It first discusses the demarcation of the working poor and various forms of nonstandard and precarious employment. Subsequently a theoretical model of the nexus between institutions, societal contexts and the occurrence of poverty among the (self-)employed will be presented. The empirical part assesses whether formal (employment regulation, social protection, low wage traps) and informal (work values, gender roles) institutions are related to the poverty risks of various segments of the working population, taking into account the relative size of these groups. This part focuses on five countries that are institutionally different, but rather similar in other respects: The Netherlands, Germany, Belgium, Denmark and the United Kingdom.