British Prime Minister David Cameron said the bill presented to the UK by the EU is "completely unacceptable," the BBC reported Friday.
"If people think I am paying that bill on 1 December, they have another thing coming," the prime minister said in Brussels. "It is not going to happen."
He said the demand was "totally unacceptable" and no way for the EU to behave - and he wanted to examine how they arrived at the amount.
EU finance ministers have agreed to the UK's request for emergency talks.
The demand from Brussels would add about a fifth to the UK's annual net EU contribution of £8.6bn.