A DIY Will Could End Up Costing Your Family Thousands

June 25, 2026

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Writing a Will is one of the most important things you can do for the people you love. It is also one of those tasks that is easy to put off, or to approach with the best of intentions but without the right guidance. With online templates and DIY Will kits widely available, the idea of sorting it yourself can feel like a sensible and straightforward solution. The problem is that the mistakes most commonly made in homemade Wills are rarely discovered until it is too late to do anything about them.

A Will is not simply a matter of writing down who should receive your belongings. It is a legal document that must comply with specific requirements, be executed correctly and be drafted clearly enough that the people administering your estate can carry out your wishes without ambiguity or dispute. A small error in any of these areas can create significant problems for the very people you were trying to protect.

One of the most common issues with DIY Wills is incorrect witnessing. For a Will to be valid, it must be signed and witnessed in a very particular way. If those requirements are not met, the document may be challenged or declared invalid altogether, leaving your estate to be distributed under the intestacy rules rather than according to your wishes.

Even where a Will is validly executed, poorly drafted wording can create its own complications. What feels perfectly clear to the person writing it is not always clear to those administering it years later. Ambiguous clauses can lead to disagreements between beneficiaries and, in some cases, legal proceedings to determine what was actually intended. The cost of resolving those disputes can quickly and significantly exceed whatever was saved by using a template in the first place.

Family circumstances add another layer of complexity. Second marriages, unmarried partners, stepchildren, business interests and jointly owned property can all affect how an estate should be structured, and a DIY Will may not properly account for any of them. The consequences of getting this wrong can be deeply unfair to the people you most wanted to benefit.

There is also the question of tax. Many people focus entirely on who should inherit without considering whether their estate could be exposed to unnecessary inheritance tax. A professionally drafted Will allows those conversations to happen at the right time, ensuring that available reliefs and allowances are factored into the planning rather than discovered too late.

The appeal of a DIY Will is almost always the upfront saving. But when mistakes lead to delays, disputes, additional legal work or court proceedings, the eventual cost to your family is almost always far greater than the amount that was saved. And the people left dealing with those consequences are, more often than not, the very people you were trying to look after.

Having a Will prepared professionally provides reassurance that your wishes have been clearly documented, that the document is legally sound and that any circumstances particular to your situation have been properly considered. For most people, that peace of mind is worth considerably more than the cost of getting it done properly in the first place.

At Marsons Solicitors, our private client team helps individuals and families prepare Wills that reflect their wishes and take proper account of their circumstances. Whether you are making your first Will or reviewing an existing one, we would be happy to help.

In the meantime, why not read some of our extensive 5-star Google Reviews showcasing our assistance for other clients?

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