Chancellor Rishi Sunak has been a “remarkable force for good”, a government minister has said – saying the country should “move on” from questions about his family’s tax affairs.

Mr Sunak’s standing among Tory MPs has been rocked by the tax revelations, and a new opinion poll shows his approval rating has fallen to a new low of -15.

However, Home Office minister Kit Malthouse denied that Mr Sunak’s political career was “toast” after The Independent revealed his wife’s non-domicile tax status.

I have conceded that Akshata Murty’s non-dom status had created a “sense of disquiet” – but said the Sunak family had “corrected that situation”, after she agreed to pay UK tax on her overseas income.

“Both she and Rishi have recognized that situation was not favorable and it was distracting from the overall message,” he told Sky News’ Sophie Ridge On Sunday programme. “They have now corrected that situation. Hopefully we can move on.”

Asked if Mr Sunak was now political “toast”, Mr Malthouse replied: “No, I don’t believe that.”

The policing minister said: “Rishi Sunak has been a remarkable force for good in this country over the last two years. He is a smart, clever, committed politician who came into parliament with me and I have been deeply impressed by him ever since. I’m a big fan.”

The minister also told the BBC that Ms Murty had recognized her tax arrangements “didn’t look right”. He added: “She recognized that there was a sense of fair play that she had been offended by her tax arrangements.”

Some Conservative MPs believe this week’s tax rows have badly damaged Mr Sunak’s chances of ever becoming prime minister. “His standing of him has certainly failed,” one senior Tory told The Independent.

A new opinion poll for the observer found that the chancellor’s approval rating has fallen to -15, making him only marginally less unpopular with the public than Mr Johnson.

Mr Sunak is now ranked one of the least popular members of the cabinet, according to the Conservative Home’s regular ‘cabinet league table’ survey.

Sources close to Mr Sunak have played down reports that he was moving his wife and two daughters out of Downing Street to escape the glare of the media.

A photograph showed removal vans arriving in the street on Saturday to take their belongings away. But one source said they had always intended to spend more time in their west London home to be closer to their daughter’s school.

Labor has called on Mr Sunak to urgently clarify whether he has helped “shape” tax rules through the recent Finance Act 2022 to benefit wealthy investors with non-domicile status.

Yvette Cooper, shadow home secretary, said there may have been a conflict of interest between Rishi Sunak’s role as chancellor and his wife’s tax status.

“So we don’t know for example, whether the chancellor declared a conflict of interest when he was making decisions on policies, there are some policies reported that do affect non-dom people with non-dom status,” she told Sky News.

Meanwhile, a Whitehall leak inquiry has been launched in an attempt to find out who passed details of Mr Sunak’s wife’s tax status to the media.