Speaking on his LBC show, the commentator ripped into the Chancellor for “going after” the self-employed with hikes to National Insurance contributions before said he “may as well be talking to a Labour Chancellor”.
The heated exchange comes after Mr Hammond announced self-employed workers paying the main rate of class 4 National Insurance contributions would see an increase by 1 per cent to 10 per cent in April 2018.
An 11 per cent increase in April 2019 is set to follow, altogether raising £145million a year by 2021/22 at an average cost of 60p a week to those affected.
Philip Hammond and Nick Ferrari clashed over Wednesday's budget
You've got this wrong, haven't you Chancellor? You've betrayed the core Tory vote Chancellor
"If you look at newspapers such as the Daily Mail, which calls your budget disingenuous, The Telegraph which claims that you put people at peril, The Sun which says `terrible way to Phil, using your first name, Phil the coffers. They're all united in their anger,” Ferrari blasted.
"Meanwhile the Guardian calls you brave. You've got this wrong, haven't you Chancellor? You've betrayed the core Tory vote Chancellor."
But Philip Hammond disagreed and said the changes were about “basic fairness”.
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Philip Hammond said his budget was about 'fairness'.
"Nobody, especially a Conservative politician likes raising any taxes, but this is an issue of basic fairness,” he said.
“We have to raise from somewhere the revenue that we need in order to invest in our social care, invest in the National Health Service and most importantly yesterday, invest in the future of our country by providing better skills, better training for our young people.”
He said the difference between self-employed and employed contributions were “no longer justifiable”.
“When we have to raise that revenue, we have to do it in a way that enhances the fairness of the tax system and the gap between the National Insurance contributions that the employed and the self-employed pay is now no longer justifiable by the difference in the state benefits that they receive,” the Chancellor said during the phone-in.
"The self-employed are now able to get the full state pension in a way that they never used to since April 2016 and the gap is no longer justified."