EU leaders meeting in Brussels have discussed plans to fight tax fraud and close loopholes used by large corporations to minimise tax payments.
Prime Minister David Cameron said the EU has to be sure "that companies pay taxes and that means international collaboration, sharing of tax information."
Irish Prime Minister Enda Kenny has denied Ireland is cutting special tax deals with multi-national companies, including Apple.
He said: "Ireland has been one of the frontrunners, and will be, in regard to building a new international consensus."
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In a tweet on Saturday, the US president didn't give a reason for his absence but said he wished"everyone well and have a great evening".
Weather conditions remain wet and windy through the weekend.
Mr Banks has given Ukip leader Paul Nuttall an "ultimatum", saying if he is not made chairman he will stop supporting the party.