The United Kingdom’s (UK) withdrawal from the European Union (EU) will reshape the geography of European finance. From January 2021, the UK will no longer be able to sell financial services cross-border into the EU’s Single Market as it has done as a Member State. Through what are called passporting rights, these financial services exports from London to the EU have been central to London’s competitiveness as an international financial centre and the wider importance of financial services in the UK’s political economy. They have also provided a range of financial services to businesses and individuals in Europe. In this commentary, we examine the implications of Brexit for the financial services sector and for conceptual understandings of finance in economic geography and cognate social sciences. We argue that at the European scale, Brexit is giving rise to growing fragmentation of financial services to a range of European financial centres. Meanwhile, within the UK, finance is likely to become more concentrated in London as renewed processes of spatial concentration that have characterised previous economic shocks develop. Our analysis shows that that in order to understand these seemingly diverging geographies it is necessary to understand financial services as both economic and political practices.