TSEM3013 - Trust income and gains: the charge on trustees: standard rate band - the tax pool
For tax years up to 2023/24, ITA/S498(1) ensured that tax charged under ITA/S491 at the basic rate and at the dividend ordinary rate were included in the tax pool. So tax charged at these rates on income within the standard rate band went into the tax pool and could be used to cover the tax credit attaching to discretionary income payments.
From 6 April 2024, the standard rate band provisions are withdrawn.