The interaction between the 0% starting rate for the personal savings allowance (PSA), the most beneficial allocation of the personal allowance, the dividend allowance and top slicing relief is a three-pronged problem.

A taxpayer has non-savings income of £9,000, dividend income of £25,000, bank interest of £2,000 and a chargeable event gain (CEG) of £60,000 having held the policy for 19 years. What is his top slicing relief (TSR) for the 2016/17 year?

HMRC and, of necessity, the software companies, will give one answer, but following the legislation to the letter gives quite a different total.