Brexit's Decade: Immigration Shifts and Economic Divergence

Ten years have passed since the United Kingdom voted to leave the European Union, a decision that reshaped the nation's political landscape and initiated complex negotiations culminating in its departure in January 2020. Key issues during the Brexit campaign, including immigration, trade, and the economy, have seen notable evolution since the pivotal 2016 referendum.

Immigration, a central theme for many voters seeking reduced numbers of arrivals, has undergone a dramatic transformation. Prior to the referendum, EU nationals constituted the majority of the UK's net migration, which consistently exceeded 200,000 annually. Net migration from non-EU countries was comparatively modest. However, following the 2016 vote, this trend reversed. Net migration from the EU decreased, while numbers from non-EU countries rose significantly, especially after new immigration rules were implemented in 2021. This shift saw net migration from non-EU countries peak at over one million in 2023, with net migration from the EU turning negative.

The exodus of EU nationals from the UK has been pronounced, with Polish nationals leading the trend. Inflows of Polish nationals peaked in 2014, but substantial outflows were recorded by the early 2020s, influenced partly by economic recovery in Poland and the pandemic. Similar patterns were observed with migration from Romania and smaller reversals among other EU nationalities, reinforcing the overall downward trend for EU migration.

Economically, the impact of Brexit remains a subject of debate. While advocates predicted minimal economic effects, opponents warned of a crisis. Initial data from the OECD suggested the UK's GDP performance was in line with other advanced economies in the years immediately after the referendum. However, since the early 2020s, the UK's economic growth has increasingly lagged behind its peers, raising concerns about the long-term economic consequences of leaving the EU's shared market.