The question of whether Britain really has halved its £1.7 billion bill from the European Union depends on a question to which there is no definitive answer: Were we due to get half of that money back anyway?
Watch James Mates' VT on the George Osborne's compromise with the EU:
The government's critics and many in Europe say yes, of course the rebate now being used to cover half of this bill was going to apply - it always does.
However, the government says that when we got this bill there was no mention of it being "rebatable" later.
Whether or not this is the triumph that George Osborne is making it out to be, politically he will be very happy that the problem has been put to bed and out of the headlines - even if it doesn't spike Ukip and Labour's guns completely.