A DIY will can be legal, and self made wills are not prohibited under UK law, but that doesn’t mean they are reliable. The difficulty with self made wills is rarely the idea behind them, but the execution. A template cannot ask follow-up questions, identify a contradiction in your instructions, or recognise that your circumstances need more than a standard clause whereas a solicitor can.
The most common problems with DIY wills include:
- Witnessing errors: A beneficiary, or the spouse or civil partner of a beneficiary, acting as a witness. This does not usually invalidate the whole will, but it does invalidate their inheritance.
- Ambiguous wording: Phrases such as “my belongings” or “my savings” can be interpreted in different ways once a solicitor, a bank or a family member is trying to establish what was meant.
- Failing to revoke earlier wills: An old will that is not properly revoked can sit alongside the new one and create confusion about which version applies.
- Overlooking jointly owned property: Jointly owned assets often pass automatically to the surviving owner regardless of what the will says, and a DIY will rarely accounts for this.
- No planning for future changes: A standard template will not account for circumstances such as a beneficiary dying before you, or a change in your situation through marriage, divorce or a new child. A solicitor plans for this from the outset.
Of these, witnessing errors are one of the most common reasons a will, or part of it, fails. Once the person has died, that kind of error can no longer be corrected. Even Martin Lewis and MoneySavingExpert have warned that DIY kits carry this same risk of errors that only surface once it is too late to fix them.
DIY wills tend to work best for very simple estates, with no property, no business interests and no complicated family situations. This is often why DIY wills don’t work for most people. Second marriages, stepchildren, jointly owned homes, inheritance tax planning and family members who might contest a will are all common, and none of these are well served by a generic template.