The effects Brexit might have on business and finance are related to the need for the UK to revise its commercial relations with the European Union (EU) member states and explore new trade opportunities outside the EU. Any possible trade and customs arrangement between the UK and the EU carries risks for integrity in business and finance. Regardless of whether Brexit will happen, the events surrounding the referendum have already produced national and transnational effects on socio-political integrity and on anti-corruption laws and policies. The Leave campaign was characterised by misrepresentation and irresponsibility. As for misrepresentation, honest and thoughtful political debate was abandoned in favour of exaggeration, half-truths and untruths. Migration has been one of the most powerful points of the Leave campaign. The prime minister has promised a more restrictive immigration policy favouring high-skilled individuals. So far, the UK has maintained an exemplary standing in the global fight against corruption.