AI vs Solicitor: Can I use AI to draft my Will?

Artificial intelligence has rapidly become part of everyday life, assisting with tasks ranging from writing emails to generating templates for complex documents. However, despite its usefulness in certain contexts, AI cannot replace the expertise of a solicitor when it comes to writing a will. A will is one of the most important legal documents an individual will ever create, and its validity depends on meeting strict legal requirements that AI technology simply cannot navigate. While AI can produce text based on the prompts it is given, it cannot provide legal advice, identify risks, or ensure that the document complies with the law. This distinction is vital, because even a seemingly small error in a will can have significant consequences for your family and loved ones.

Correct execution

One of the key limitations of AI generated wills is that they cannot ensure compliance with the Wills Act 1837. Solicitors are trained to ensure that wills are drafted correctly, executed properly, and witnessed in accordance with the law. Improper witnessing, for example, is one of the most common reasons homemade wills fail. AI tools cannot supervise the signing process, warn you if your chosen witnesses are inappropriate, or ensure that the correct formalities are followed. A will that appears perfectly acceptable on the surface can, in fact, be invalid if it has not been executed correctly. If that happens, your wishes may not be honoured, and your estate could fall under the intestacy rules instead.

AI responses are only as good as your prompts

Another major issue is that AI can only work with the information it is given. It cannot ask probing questions, identify missing details, or assess your circumstances. If you are not legally trained, you may not realise what information is needed to produce a valid will, and AI will not know what you have left out. Solicitors, however, know what to ask. They take time to understand your family background, assets, personal dynamics, potential risks, and future concerns. Many people believe their situation is “simple”, but in reality, estates frequently involve complexities such as second marriages, step‑children, business interests, foreign assets, vulnerable beneficiaries, or estranged family members. AI cannot analyse these factors, nor can it provide tailored advice to ensure your wishes are expressed accurately and are legally enforceable.

Estate planning

Wills also play a crucial role in broader estate planning. A solicitor does far more than simply draft a document. They can identify opportunities to minimise inheritance tax, use available allowances and exemptions effectively, and advise on potential liabilities. Planning for the future often requires more than a standalone will; there may be implications for property ownership, trusts, lifetime gifts, or other areas of law. AI cannot offer this kind of integrated estate planning advice, nor can it help you structure your affairs in the most tax‑efficient way. A homemade will may look adequate, but it could result in your estate paying significantly more tax than necessary.

Poor wording

Poor wording is another common problem with DIY or AI generated wills. Ambiguity, contradictions, and missing clauses can easily lead to disputes. A solicitor’s role is not only to write the document but to ensure that your instructions are expressed clearly, precisely and in a way that prevents misinterpretation. Incorrect or unclear drafting can cause arguments among family members or result in beneficiaries receiving more or less than intended. Professionally drafted wills are also less likely to be challenged on grounds such as incapacity, undue influence or ambiguity because they carry the benefit of legal oversight and professional judgment.

AI is experimental

Furthermore, AI technology is still experimental and is not always accurate. It draws from patterns in data rather than applying legal reasoning. This means it can generate text that sounds convincing but is legally incorrect. AI cannot verify whether the law it is applying is current, cannot adapt to new legislation, and cannot give assurances about compliance or validity. When dealing with a document that determines how your estate is distributed after your death, relying on an experimental tool poses unnecessary risks.

Reassurance from a professional

Perhaps the most important point is the reassurance that comes from knowing your will has been drafted and executed correctly by a qualified professional. A solicitor ensures that your will is legally sound, accurately reflects your intentions, and protects your loved ones when you are no longer here to do so yourself. They can review and update your will as circumstances change, ensuring that your estate plan remains appropriate over time. AI cannot replicate this level of ongoing support or accountability.

While AI services may be able to generate a basic will for free, the potential consequences of an invalid or poorly drafted will far outweigh any initial cost savings. A solicitor’s expertise ensures your will is valid, properly executed, and capable of withstanding any future challenge. When the goal is to protect your family and ensure your wishes are honoured, the value of professional advice is immeasurable. A will should offer certainty, clarity and peace of mind and not unnecessary risk.