The European Commission has reviewed the economic performance of all member states since 1995, and revised its economic statistics to take greater account of things like income from the black economy.
The result is that the UK faces by far the largest extra payment. The Netherlands and Italy also have big bills to pay, and even a struggling country like Greece will see its contribution go up.
In contrast, both Germany and France will get rebates – €1bn for the French.
Lucky Germany and France, never liked us….