The rules relating to the eligibility and application of the lower rate of inheritance tax to an estate are set out in Schedule 1A to the Inheritance Tax Act 1984 (IHTA 1984). IHTA 1984, Sch 1A, para 2 provides that if ‘the charitable giving condition’ is met, the lower rate of inheritance tax (currently 36%) applies to the part of the value of an estate which would otherwise be chargeable at a rate other than nil per cent. The charitable giving condition is met if, for one or more components of the estate (taking each component separately), ‘the donated amount’ is at least 10% of ‘the baseline amount’. The components comprise the survivorship component, the settled property component and the general component—see IHTA 1984, Sch 1A, para 3. IHTA 1984, Sch 1A, para 4 defines ‘the donated amount’ as so much