Lower paid women will be worst hit by Rachel Reeves’ National Insurance tax grab, economists have said.

The Chancellor raised National Insurance contributions for employers from 13.8 percent to 15 percent, and also reduced the threshold at which businesses start to pay it, meaning any employee earning more than £5,000 will require contributions from their employer.

Labour has boasted about keeping its promise to not raise taxes for working people, saying it has successfully shielded them from…