IHTM12074 | Succession: Wills: Revocation of a Will: By marriage or civil partnership
From HM Revenue & Customs · Inheritance Tax Manual
In England, Wales and Northern Ireland, it is still a general rule that marriage automatically revokes a Will.
S18 (1) Administration of Justice Act 1982 replaces S18 of the Wills Act 1837, which provides that a Will made on or after 1 January 1983 is no longer revoked by marriage if at the time the Will was made
the testator or testatrix (IHTM12001) was expecting to marry a particular person, and
they did not intend to revoke their Will by the subsequent marriage to that person.
The equivalent provision applying to Wills made in Northern Ireland on or after 1 January 1983 is the Wills and Administration Proceedings (NI) Order 1994.
The formation of a civil partnership (IHTM11032) will generally revoke a Will. But, as with marriages, if it appears from a Will that the testator was expecting to form a civil partnership with a particular person and intended that the Will should not be revoked by the formation of the civil partnership, the Will is not revoked. This is provided for in Sch 4 of the Civil Partnership Act 2004 for civil partnerships in England and Wales and in Sch 14 of CPA 2004 for civil partnerships in Northern Ireland.