It is, of course, often said that tax avoidance is legal. I dispute that. Correctly it is not illegal. But nor is it sanctioned by parliament. It is in a grey area where the law is in doubt, and very often the application of law is, in the absence of a general anti-avoidance provision, also in doubt.
No. It’s a very basic principle of our legal system that if it ain’t illegal then it’s legal. We do not have to have a law stating that something is legal for us to do before it is legal for us to do it.
We have a Common Law system. One in which you do not need to seek permission if there is no law forbidding a practice.
For example, we do not have a law against standing upon one’s head and juggling jelly. Therefore it is legal to stand upon one’s head and juggle jelly. It is not a grey area, it is not something that a copper or a nark can suck his teeth over, it is simply flat out legal.
There is another form of legal system, often called Roman or Napoleonic, where to a large extent this structure is reversed. Where only that which is described in the law as being legal is legal. And perhaps you would prefer to live in such a legal system.
Well, good luck to you, have fun: but you’ll have to fuck off to France to do so.
It is our great good fortune as Englishmen that we get to do whatever the fuck we want: with only the exception of those things that there are laws against. We do not nee laws to tell us what we may do.