Hi joe,
If a friend or family member or anyone else for that matter, gifts you cash, whether they are resident in the UK or not, that gift is not taxable in the UK.
If that gift then generates interest or dividends in the tax year it is given, then the interest and dividends may result in tax being payable on the dividends or interest.
Gift that are not cash in nature, such as shares, jewellery, paintings, antiques, coins and stamps or sets of things, just to name a few, will be subject to Capital Gains Tax if the recipient disposes of them.
If the giver is resident in the UK, they also would be liable to Capital Gains Tax on their disposal of the gift.
Capital Gains Tax on personal possessions
Thank you.