The government has been trying to persuade people to pay their tax. Of course as someone famously said in New York payment of tax is only for the little people. Little people usually means poorly paid folk on PAYE. They have no choice because they cannot re-arrange their affairs in a way to mitigate tax. Richer folk can and do re-arrange their affairs and many self employed people work for “cash in hand” thus avoiding tax and usually saving their customer value added tax.
One government minister (I had not heard his name before) says that it is morally wrong to pay people cash in hand. Perhaps it is. However it is also morally wrong for governments to spend money they raise from taxes on their own comfort and luxury (as we saw with the Members of Parliament’s expenses fiddle, not too long ago) or to waste hard earned taxes on foolish government schemes (such as the Olympic Opening Ceremony or remember that Millennium Done or those aircraft carriers without aircraft).
I guess that if the expenses scandal had not been outed, many MPs would still be fiddling today, while talking about the moral outrage they feel because a gardener or builder gest some “cash in hand” as opposed to fiddling an expense sheet. It is just slinging stones in a glass house.