This applies most commonly when spouses or civil partners (
IHTM11032) die within two of years of
each other and the beneficiaries on the death of the second spouse
or civil partner seek to vary the disposition on the death of the
first spouse or civil partner to die. (
IHTM35042)
Although in these circumstances the effect of the variation
is (usually) to reduce the entitlement of the second spouse or
civil partner, a variation may also be used to increase the
entitlement of someone who has died after the person whose estate
is being varied. You should make a full note of the effect of the
IoV at both files setting out clearly the IHT implications. You
should use the boxes on form IOV1 and the reverse of that form for
this purpose.