East Lothian MP Fiona O’Donnell has pushed David Cameron to say if he would publish his tax return.
The Prime Minister was asked to “keep his promise” and publish his tax return by Ms O’Donnell.
During Prime Minister’s Questions, Ms O’Donnell said: “Keeping on the issue of taxes for the wealthy, when will you keep your promise and publish your tax return?”
Speaking after the session, a No 10 source said Mr Cameron was willing to publish his tax return “in principle” but described it as a “complex issue”.
The source said: “In principle, he is willing to do that - he is looking at the detail. It will take as long as it takes. It’s a complex issue.”
The Prime Minister insisted in May that he was still considering whether to publish his tax return, two years after saying he was “relaxed” about making it public.