My point was that it is very easy for everyone to point the figure at one/two individuals and corporations and insist that they are tax evaders. However, as a result of the so-called shadow economy, hmrc loses approx £70bn per year. Everyone who enables a deal so that the VAT isn't paid (eg builders), or employs someone but doesnt pay do paye or who comes through Customs but doesn't declare goods is contributing to the growth in the shadow economy.
The point of this idea isn't to give a tax break at all, it is just to dress it up as such as the real point is to try and claw back some of that £70bn.