Paul Kavanagh from the investment firm Killik and co. said that new plans to cap bankers' bonuses will "create a very uncompetitive environment for many banks."
Speaking to Daybreak he added: "Not all pay is irresponsible pay."
As part of a financial reform package, ministers will consider a provisional proposal pushed last week by MEPs and backed by the European Commission.
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If the UK position is rejected, the Government could be faced with a choice between remaining in the Customs Union or accepting a hard Irish
The size of the proposed penalty has not been disclosed.
Walter Leroy Moody became the oldest US inmate put to death since executions resumed in the US in the 1970s.