I know a friend in England ordered from the USA and had to pay taxes when the package arrived, I have seen some companies that say they do not pay the taxes so not sure if they mean to the UK or Canada.
I know some companies in England weigh the package, could be costly, I really don't know how they stay in business.
CCC 2016. AOCC2016, Scraplift
S2S 2016 159.00