NIGEL Farage dismissed out of hand the SNP's desire for a currency union, saying it was difficult to see how Scotland would be truly independent if a foreign country controlled its interest rates.

Speaking to Westminster journalists, the leader of the anti-EU UKIP denied he was England's version of Alex Salmond, saying the First Minister lived in "dreamland" if he thought Scotland could achieve independence while being a member of the European Union.

A week after the funeral of Baroness Thatcher, Mr Farage also claimed that if the former Tory leader was starting out in politics today, she would probably join UKIP because of its stance on the EU.

He said his party was "the true inheritor of Thatcher" on European policy and said many of her supporters were dismayed the Conservatives were now led by the "social democrat" David Cameron.

On the issue of an independent Scotland joining the UK in a sterlingzone, he said: "Of course, Scotland can if it wishes use sterling as a means of exchange – Panama uses the US dollar – but it is difficult to see how independent a country can be if it doesn't actually control its own currency and the interest rates that effect that currency."

Mr Farage said it was a "delicious irony" that what had "sunk" the independence campaign was the assertion by Jose Manuel Barroso, the European Commission President, that an independent Scotland seeking EU membership would have to join the euro.

"The Scottish people looked at that and said no," he added.

He went on: "You can't have it both ways... Either you are independent or you're not."