[quote="Chewie"]I got the tax bill direct from Fedex, because P800er contacted fedex with the details of our transaction.[/quote]
I think you'll find the reason you got the bill from FedEx is nothing to do with P800er, and everything to do with the UK goverment and UK Import Duty.
Everything that comes into the country with a value over about �18 (postage charges are included in that figure) will incur import duty taxes - which is a tax of VAT + 4% on top of that amount. If the package is marked clearly as a Gift, then the limit is increased (�40ish, I believe) before Import Duty is incurred.
If the package comes in via a courier (FedEx, UPS), then the courier is responsible for clearing the package through UK Customs unless you ask otherwise, which means they calculate the UK duty payable on the package and collect it from you, plus their admin charge - FedEx do this by sending an invoice, usually two weeks after delivery, UPS do it as a COD charge, payable by cheque or by credit card if you call them with a tracking number before it arrives.
If you can, and don't mind the risk of delays and no tracking details, get stuff shipped (if from america) by USPS - the US Postal Service. Things come either surface or air mail, and the UK side is handled by Royal Mail - they quite often forget to calculate and collect the import duty (though I have been stung once).
Anyway, back to the original point - the tax and duty isn't P800er's responsibility, though you could argue it should be made clear that you may have to pay your own countries Import duty and local tax if applicable - but I've ordered a lot of stuff from a lot of american sites, and very few of them state this. Again, it isn't P800er's, or any other company outside of the UK's, duty to collect these taxes, as they are imposed by the UK government (well, HM Customs & Excise, actually), and any company located outside of the UK is not UK Vat registered - therefore the UK tax office would have no way of collecting the required VAT from the company. So, they collect it from you direct.
Hope that clears a few things up - btw, I'm not affiliated with P800er in any way, I just happen to have ordered a lot of things from the states (about US$4000's worth of car parts, in fact, some of which got taxed, some of which didn't..)
Aaron
P.S. sorry if I'm teaching grandma to suck eggs with any of this 😊