You can let someone in a tax neutral country setup a UK corporation and then get a letter from HMRC stating that the company is not tax resident in the UK. The

You can let someone in a tax neutral country setup a UK corporation and then get a letter from HMRC stating that the company is not tax resident in the UK. Then you could persuade your employer to pay this corporation for services rendered. Of course, the heart of the company would still be with you and if you are resident in the UK, you are doing something illegal.