It will be very complicated. Just considering unemployment compensation, there are more British subjects receiving benefits, particularly in the wealthier EU states than EU nationals receiving benefits in the UK. To complicate matters worse, unemployment benefits are higher in the states that have more of their nationals receiving unemployment benefits in the UK. France's benefits are three times higher than those in Britain, for example. Not to mention healthcare benefits. Very complicated.
Revealed: thousands of Britons on benefits across EU