But other foreign ministers questioned whether the UK's contribution had changed.
Ireland's Finance Minister Michael Noonan said the UK would "pay the full amount", and Hans Joerg Schelling, from Austria, said "the amount cannot be put in question".
Dutch finance minister Jeroen Dijsselbloem added: "The UK has ... a rebate, which they have had for a very long time and of course this mechanism of rebate will also apply on the new contribution.
"So it's not as if the British have been given a discount today.
Under the initial plan, the UK was due to get a 1bn euros rebate in 2015-6 but it will be allowed to bring that forward to the second half of 2015 to reduce the surcharge.
But its 2016 rebate will be 1bn euros smaller as a result.