Short answer: yes, an online will is legally binding in the UK, provided it's signed and witnessed correctly. The legal validity of a will doesn't depend on where it was drafted, who typed it, or whether the person buying it ever met a solicitor. It depends on the document itself and the way it's signed.
This guide walks through exactly what makes a will legally binding in England and Wales, the specific section of the law that applies, and the small handful of mistakes that can invalidate a will from any source — online or otherwise.
The legal test: Wills Act 1837, section 9
The validity of a will in England and Wales is governed by section 9 of the Wills Act 1837, which has been repeatedly updated but is still the foundation. A will is valid if:
- It is in writing (paper, typed or handwritten).
- It is signed by the testator (the person making the will), or by another person in their presence and at their direction.
- The testator intended by their signature to give effect to the will.
- The signature is made or acknowledged in the presence of two witnesses, both present at the same time.
- Each witness then signs the will, or acknowledges their signature, in the presence of the testator.
That's the entire legal test. Notice what isn't in there:
- It doesn't say a solicitor must draft the will.
- It doesn't say where the will must be produced.
- It doesn't say the document must be on any particular paper or use any particular wording.
- It doesn't require notarisation.
In short, the law cares about the document and the signing — not the route the document took to get there. Our how to write a will guide walks through each step.
So why does "is an online will valid?" come up so often?
Two reasons. First, the will-writing industry is changing fast and people are understandably cautious about new approaches. Second, there's confusion between the drafting of a will (which can be online) and the signing of a will (which must still be on paper, in person, with witnesses).
A common misconception is that an online will means signing electronically. It doesn't. In England and Wales, you still need to print the document and sign it in wet ink in front of two witnesses. The "online" part is the question-and-answer process that produces the document. There were temporary provisions for video witnessing during the pandemic, but those expired.
If you'd rather just get on with it, the Trusted Hands guided will builder is free to start — you only pay when you download.
What makes an online will fail?
The same things that make any will fail. The Wills Act doesn't have an "online will" exception, so the failure modes are universal:
- The witnesses weren't both present at the same time when you signed. This is the single most common cause of invalid wills.
- A witness was a beneficiary (or married to / in a civil partnership with a beneficiary). The will doesn't fail entirely, but the gift to that beneficiary is voided.
- The will wasn't signed at all, or was signed in the wrong place, or only by some of the parties.
- The testator lacked capacity when they signed.
- The testator was unduly influenced into signing.
- A later will revoked it — most recent valid will wins.
Our common will mistakes guide covers each of these in detail with worked examples.
Why a guided online will is often less error-prone
Counter-intuitively, a well-designed guided will builder eliminates several classes of error that bedevil DIY and even some solicitor-drafted wills:
- The residual clause is always present and always covers all remaining estate (a surprising number of solicitor wills miss this).
- Substitute beneficiaries and executors are prompted automatically.
- Witnessing instructions are issued with the printable document, with explicit warnings about beneficiary witnesses.
- Standard wording is identical between users, so the chance of an ambiguous clause is much lower.
The bit that still depends on you is the signing. The good services give you a clear printed witnessing checklist and a script for the witnesses to follow.
What about will challenges?
Any will from any source can be challenged. The grounds are limited by law and apply equally to online and solicitor-drafted wills:
- Lack of testamentary capacity — you didn't understand what you were doing when you signed.
- Lack of knowledge and approval — you didn't actually know what was in the document.
- Undue influence — someone pressured you into the will.
- Fraud or forgery.
- Failure to comply with the Wills Act 1837 — the technical signing rules.
A claim by a dependent under the Inheritance (Provision for Family and Dependants) Act 1975 is technically not a challenge to the will's validity — it's an application for provision out of the estate where reasonable provision wasn't made. But it's worth noting because it's the most common form of estate dispute.
A solicitor's notes can sometimes be useful evidence if there's later a capacity challenge, but most challenges turn on family circumstances rather than drafting routes. For complex estates, we recommend you seek assistance from a Trusted Hands Advisor or your own legal advice.
Storage and probate
Probate (the official process of administering an estate) requires the original signed paper will. Some practical implications:
- Sign and witness the will in wet ink on paper.
- Don't staple, unstaple, restaple, or attach anything to it after signing — even a removed staple can prompt awkward questions during probate.
- Store it somewhere safe and tell your executors where it is.
- Most online services keep an electronic copy as a backup, but the executable document at probate is the paper original.
How a guided online will is actually produced
Worth being explicit about the workflow, because there's still confusion about what "online" means in this context. A typical guided will builder runs you through:
- Personal details — name, address, marital status, children.
- Executors and substitutes — who you trust to carry out your wishes.
- Guardians for minor children, if applicable.
- Specific gifts — particular items or sums to particular people.
- The residual estate — how the rest is divided.
- Funeral wishes (optional but commonly included).
- A review screen showing the assembled draft.
- A printable PDF with witnessing instructions.
Steps 1-7 happen on screen. Step 8 produces the legally significant document, which then needs to be printed, signed in wet ink, and witnessed in person. The "online" part stops at the printing.
This is the same flow our will-writing how-to covers in more detail.
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> Ready to start your will? Trusted Hands turns these decisions into a 15-30 minute guided builder. Start free → — only pay when you download.
Frequently asked questions
Can a will be signed electronically in England and Wales?
No, not under current law. You still need to print the will and sign it in wet ink in front of two adult witnesses (who must not be beneficiaries) physically present at the same time.
Does the will need to be notarised?
No. There is no requirement to notarise a UK will. The witnessing requirements are the legal formality.
Are online wills accepted at probate?
Yes, provided the original signed paper will is produced. The Probate Registry has no concept of "online" versus "solicitor" wills — it looks at whether the document complies with the Wills Act.
Is a will written abroad valid in the UK?
A will made abroad can be valid in England and Wales if it complies with either the local law of where it was made or the Wills Act 1837. Cross-border estates are inherently more complex, and we'd recommend specialist advice.
What happens if my online will provider goes out of business?
The will doesn't stop being valid — it's a paper document you've signed and stored. The only thing you'd lose is the ability to log back in and update it through that provider, in which case you'd write a new will via another route. Annual subscriptions with reputable providers usually include a backup arrangement.
Ready to write your will?
Trusted Hands is a guided, plain-English will builder. You answer simple questions, see your draft as you go, and only pay when you're ready to download.
- Free to start — no card details to begin
- Smart Will Engine — only asks what's relevant to your situation
- Fixed price — no hourly bills, no surprises
- Annual updates option — keep your will editable as life changes