Rachel Reeves looks set to raise National Insurance for employers in her maiden Budget next week, a report has claimed. In the Chancellor’s attempt to provide more funding for public services and roll out fresh pay rises, Reeves will likely hike employers’ contribution by up to two per cent. Reeves is also predicted to cut earnings thresholds at the point at which businesses face taxation for National Insurance, The Times has claimed. Such a move is estimated to bring in approximately £20billion to the Treasury and is said to represent the largest tax rise that will be unveiled next week. Howe…