This sounds more like the agency/umbrella company ripping the individual off than a Tory/Labour government. I worked for over 12 months through an umbrella company a few years back (wish I could do so again). And got none of the OP's stated issues. Yes the Umbrella co take a small admin fee, but shouldn't take anything for employers NI, if I remember correctly. He should be pulling in somewhere between 75-82% of his hourly rate as a final salary after deductions.

Me neither.
Mind you, I decided that two pages ago.

Well I *knew* it even I read the original link.

But you can still judge the figures that are presented before you.