The EU makes it easier for more businesses to operate across borders, but banks and payment companies are still highly regulated on a per-country basis, with fe

The EU makes it easier for more businesses to operate across borders, but banks and payment companies are still highly regulated on a per-country basis, with few real standards for having regulators talk to each other. The main downside of not being in the EU is that it'd be harder for the banks' clients to move money to the EU, likely trigger additional taxes, etc.