Subsection (2) applies to a single-dwelling interest if—
The taxable value of the single-dwelling interest on any day is taken to be zero if no chargeable event has occurred with respect to the dwelling in the time between the transfer of value and the beginning of that day.
Subsection (4) applies to a single-dwelling interest if—
The taxable value of the single-dwelling interest on any day is taken to be zero if no chargeable event has occurred with respect to the dwelling in the time between the conditionally exempt occasion and the beginning of that day.
In this section—
"chargeable event" means an event which is a chargeable event under section 32 of IHTA 1984;
"conditionally exempt occasion" is to be read in accordance with section 78(2) of that Act;
"transfer of value" has the same meaning as in that Act.