We in the United Kingdom are responsible for all custom fees we incur by purchase anything at all outside of the EU. Customs due starts on anyting with a value over £15 ( $20) if marked as a gift £36.00 ( $50 ) I have posted to the value of £120 to the USA and they did not incur any customs. I was told that you can import into the USA up to £1,000 but best to check with your customs and excise to be accurate.