Cracking Idea - have a tax free salary just like the spams et al once you are overseas. But of course you would have to take their lower rates of pay. Then of course what about the non-contributory pension - most civvie firms have either stopped pension plans based on earnings or required their employees to double their contributions. Of course no-one else gets more than about a months pay if they are made redundant unlike the 18 months pay plus the normal gratuity. What about paying for helath care and dentistry like everyone else does? The list is endless
If you don't like it then the door is there.