Binding wage floors can have a significant impact on the wage distribution and the costs faced by employers. International comparisons of minimum-wage levels have largely focused on the gross value of minimum wages, ignoring the effects of taxation on both labour costs and the net income of employees. This paper presents estimates of the tax burdens facing minimum-wage workers. These are used as a basis for cross-country comparisons of the net earnings of these workers as well as the cost of employing them. In addition, results show the evolution of net incomes and labour costs during the past six years and the relative importance of minimum-wage adjustments and tax reforms in driving these changes.