This Practice Note: • outlines the UK rules imposing a requirement to deduct (and account to HMRC for) an amount in respect of UK income tax at the basic rate (currently, 20%) from payments for the use of, or the right to use, intellectual property (IP), including royalties • explains the concepts of IP and UK source, which are relevant to the rules requiring income tax to be withheld at the basic rate from IP-related payments • covers the reliefs that may be available from UK withholding tax applicable to IP-related payments, and • discusses the anti-abuse rules that may apply to prevent double tax treaty (DTT) relief from applying to the relevant IP-related payment, including: ◦ the principal purpose test, and ◦ the anti-treaty shopping rule for connected parties This Practice Note also briefly discusses the subject to tax rule. IP-related payment is the term used in this Practice Note to refer to royalties and other sums paid for the use of, or for the right to use, IP. This