The fall in the value of the pound since Britain's June vote to leave the European Union has led to a notable shortfall in London's contributions to the bloc's 2016 budget, the European Parliament's lead negotiator on the issue said Tuesday.
The warning came as EU lawmakers and member states are gearing up for the annual round of traditionally testy negotiations on EU spending for the coming year.
Britain - one of the largest contributors to the EU budget - remains a full paying member of the bloc until the day it leaves, but many anticipate Brexit to trigger a bitter debate over future spending plans.
The EU budget is calculated in euros, but Britain pays its share in pounds, EU lawmaker Jens Geier noted Tuesday. The exchange rate being applied is that of late 2015, but the pound has fallen in value by more than 10 per cent since June, he added.
As a result, the full euro amount of Britain's contribution is not being met, Geier said. The European Commission has estimated the shortfall to stand at 1.8 billion euros (2 billion dollars), according to his office.
The EU budget is not allowed to go into deficit, leaving three options, Geier noted. Britain would have to raise its payments; other member states would have to make up the difference; or the shortfall would need to be settled by dipping into the EU's pot of penalty revenues.
Member states must decide by the end of the year how to proceed, Geier told journalists.