This article reviews practices in the United States (US) federal‐state unemployment insurance (UI) system regarding applicant eligibility, benefit generosity, benefit financing and emergency measures with the aim of revealing lessons for a possible European unemployment benefit system (EUBS) for European Union (EU) Member States. We overview the US system for UI and examine important areas of federal leadership. While the US system offers some good ideas for setting up an EUBS, there are also lessons in some shortcomings of the US experience. We overview existing national UI systems in the EU and review the debate on an EUBS in the EU. We identify areas of risk for individual and institutional moral hazard in a multi‐tiered UI system and give examples of monitoring methods and incentives to ameliorate such risks. We suggest approaches for gradual system development, encouraging lower‐tier behaviour, benefit financing, and responses to regional and system‐wide labour market crises.