Mr Hammond has announced a national insurance tax rise to 10% from April next year and 11% in 2019
Chancellor raises NI tax on self-employed There's also - as expected - an announcement from the Chancellor on higher taxes for self-employed workers. Mr Hammond says that lower National Insurance contributions from self-employed workers is forecast to cost public finances £5bn this year alone. To make the system "fairer", he says that NI contributions will rise for the self-employed by 1% to 10% from April next year. That will then rise again to 11% in 2019 Together with other changes, this will raises a net £145m a year - around 60p a week per self-employed person, he adds.