David Cameron has so far refused to offer Scotland any further devolution beyond the Smith Commission’s proposals, Nicola Sturgeon has revealed.

Ms Sturgeon, whose Scottish National Party won 56 of 59 MPs in Scotland, spoke to the Prime Minister after the Conservative election victory.

Mr Cameron said one of his priorities in the wake of the election was to reclaim the “mantle of One Nation” and added that he would implement the Smith Commission recommendations in his first Queen’s Speech.

The SNP stood on a platform of full fiscal autonomy – the devolution of all tax-raising powers – in the campaign.

But Ms Sturgeon told the Andrew Marr Show this morning: “David Cameron didn’t give me any indication that he wanted to move beyond the current Smith Commission proposals. I think he has to, and that clearly is one of the things we’re going to have to discuss.”

Asked whether she believed full fiscal autonomy within two years would amount to a good deal for Scotland, she said: “We would have to make sure that was a good deal because one of the issues around full fiscal autonomy would be a fiscal framework between the Scottish Government and the UK government, and there would be some issues in that that it would be the responsibility of the Scottish Government and our MPs then in the House of Commons to make sure we get a good deal.

"There’d be questions about how much Scotland contributed to continued reserved responsibilities like defence, how much we contributed to debt interest payments, so there are clearly some big discussions to be had there. Now, we haven’t got into the detail of those discussions. My starting point, though, is that Scotland’s voice has to be heard, and it is the job now of the MPs we’ve elected to this place to make sure that happens.”

The Institute for Fiscal Studies estimated full fiscal autonomy would result in a £7.6bn black hole in Scotland's budget.