Abstract This paper reviews the deeper societal and economic reasons behind the British choice of leaving the European Union. We address the detailed results of the referendum and the long-standing sceptical British attitude towards European integration; next, we analyse the net budgetary contribution that changed enormously after the Eastern Enlargement. It is argued that the rise in the immigrant-native ratio had a significant impact on employee’s pay level in certain areas, therefore pro-Brexit campaigners highlighted migration as one of the major problems arising from EU membership....