That’s exactly why I said that if you want to “evade” the tax you MUST not pay it into a UK account.
Just make sure you visit the doc, and get some pills so you can sleep at night. IR consider a foreign owner to be financially, and tax, literate – and prosecute accordingly. They are very friendly and will tell you the penalties levied in the last few months.
Depending on the sum involved, your age and history, you face a crippling fine, back tax, interest and a possible jail sentence.