The Institute for Economic Affairs (IEA) said Britain can and should refuse to pay any Brexit bill if Eurocrats refuse to give her a "good deal". <br /> <br />European Union officials have claimed the UK's divorce fee could be as high as £90 billion. <br /> <br />But a discussion paper published by the IEA described the sum put forward by European Commission officials as "going too far". <br />The Institute for Economic Affairs (IEA) said Britain can and should refuse to pay any Brexit bill if Eurocrats refuse to give her a "good deal". <br /> <br />European Union officials have claimed the UK's divorce fee could be as high as £90 billion. <br /> <br />But a discussion paper published by the IEA described the sum put forward by European Commission officials as "going too far".