Can a Beneficiary Witness a Will?

Section 15 of the Wills Act 1837 deals directly with this situation. If a witness to a will, or the spouse or civil partner of a witness, is also named as a beneficiary, the gift to that person is void. The witnessing itself remains valid for the purposes of properly executing the will, but the beneficiary loses their inheritance under it.

This is an important distinction. People sometimes assume that a beneficiary witnessing a will makes the entire document invalid, but that is not correct. The will as a whole still stands, is admitted to probate, and is carried out according to its terms, with the single exception of the gift that has failed.

The rule is designed to prevent a conflict of interest at the moment of signing. A witness is meant to be an independent observer confirming that the will was properly executed, with no personal stake in its contents. If a witness stands to gain financially, there is a risk, or at least an appearance, that they had an incentive to influence the process.

By automatically voiding the gift rather than the whole will, the law protects the testator's overall wishes while removing the specific conflict. It is a pragmatic solution that avoids punishing the testator for an honest mistake made at signing.

If a specific gift fails under section 15, it usually falls into the residuary estate, meaning it is distributed according to whatever the will says should happen to the remainder of the estate after specific gifts are paid out. If the failed gift was itself part of the residuary estate, the share may pass under the rules for that clause, or in some cases under intestacy rules if there is no other provision.

The exact outcome depends on how the will is worded, which is why it matters to review a will carefully with someone who understands its structure if this situation arises.

If you discover that a beneficiary witnessed a will, the safest and most reliable solution is to make a new will with two independent witnesses who have no interest in the estate. This avoids any argument later about which gifts survive and preserves the testator's original intentions in full.

Trying to fix the problem by adding a note, crossing something out, or getting an additional signature after the event does not work reliably and can create further uncertainty. My Posh Will's guided process flags this issue clearly during the signing stage to help avoid it happening in the first place.

Suppose a will leaves a house to a daughter and the residue of the estate equally between two sons. If the daughter's husband acts as one of the two witnesses, the gift of the house to the daughter fails under section 15, because he is the spouse of a beneficiary. The two sons' shares of the residue are unaffected, since neither of them nor their spouses witnessed the will.

In this example, the house would most likely pass as part of the residuary estate instead, meaning it is effectively shared between the two sons rather than going to the daughter as originally intended. This is very unlikely to reflect what the testator actually wanted, which is why the rule matters so much in practice, even though it can feel like a technicality at the time of signing.

If you are an executor or a beneficiary reviewing a will after someone has died, it is worth checking whether either witness, or their spouse or civil partner, is named anywhere in the will as a beneficiary. This is easy to overlook, particularly in older wills where family relationships may not be obvious from names alone.

If you find that a witness is also a beneficiary, it is worth getting advice on how the gift is likely to be treated and what happens to it under the specific wording of that will, since the residuary clause and any substitution provisions will determine where the gift actually ends up.