I earn so little from sales that HM Tax Office laughs at me declaring it. It's not enough to tax.
I got some sales from the US and a chunk of that is taken by US Tax which means a sale becomes, in reality, a bargain basement give-away. Make lots of sales no problem. Make very few sales and it does hit hard.
So, I'm interested where my US Tax Dollar goes, dammit!!
(in case you are wondering, yes, the US Tax did just take more money off me...a non US citizen)