Stripe + UK corporate - sales reporting

They will report the UBO to the belonging tax office. It's that simple. You can find large explanations posted in the main forums if that is what you are looking for. However, the short version is that they report whatever you earn.

There are no payment processors that won't do that today. They may tell you that they won't do it but the reality will be different. I believe they will be forced to report you with all the s**t that is going on at the moment.

Exception of the above could be unregulated processors which you won't find easy and for sure not using Google.

You want to approach a few of the MAP's around. Try with WireCard, GlobalCollect, Instabill and even 2checkout to see what & if they are going to report you.