This Q&A assumes that: • UK shares are being transferred, and • there are no tax avoidance arrangements As noted in Practice Note: Stamp duty and SDRT on the sale of certificated registered UK shares, a share purchase agreement (SPA) does not normally attract UK stamp duty. As noted in Practice Note: Stamp duty on transfers—scope, administration and enforcement: • UK stamp duty at 0.5% of the consideration (rounded up to the nearest £5) applies (among other things) to an instrument, such as a stock transfer form, that transfers stock or marketable securities (section 125 of the Finance Act 2003,paragraph 1 of Part I, Schedule 13 to the Finance Act 1999 (FA 1999); STSM011010) • an instrument's liability to stamp duty is determined as at the date that the instrument is executed (FA 1999, Sch 13 Pt I, para 1; STSM011010), and • the instrument must include all facts and circumstances relevant to determining (i) its liability