Transferring money from forex trading

Hi,
Question about forex trading if anyone can help please. 
I understand from what I have read that forex trading comes under gambling and is therefore tax free.
My primary source of income is my main job and I get paid around £2000 per month.
If I was to start successfully making for example £5-10k per month on forex and was withdrawing that amount into my personal account would it flag anything up and would I need to explain where it was coming from and what I was doing to either the bank or HMRC? 

Thanks 
Sign In or Register to comment.
Latest MSE News and Guides

Iceland's helping struggling pensioners

It's giving out free £30 food vouchers

MSE News

Who can suggest a top-notch bed?

This Forumite's mattress is in need of a base

MSE Forum