Can I Write My Own Will in the UK? Rules, Risks and What to Know (2026)

Short answer first, because this question deserves a straight one: yes, you can legally write your own will in the UK. There’s no requirement to use a solicitor. But “legal” and “wise” aren’t the same word, and the gap between them is exactly where thousands of DIY wills quietly fail every year — not at the moment they’re written, but months or years later, when someone tries to use them and discovers a technical flaw nobody caught in time. Let’s go through the actual rules, what invalidates a will, and an honest self-check on whether you’re a good candidate for doing this yourself.

Can I Just Write My Own Will in the UK?

Yes. Will writing isn’t a reserved legal activity in England and Wales, meaning it’s not restricted to solicitors the way, say, conveyancing or litigation is. A handwritten will can be entirely valid, provided it meets the same formal requirements as a typed one: written down, signed by you, and witnessed correctly. What you can’t do is skip the formalities and expect it to hold up — an unwitnessed handwritten will, however heartfelt, generally isn’t valid in England and Wales.

What Invalidates a Will in the UK?

This is the section worth reading twice, because every point here has genuinely undone real wills:

• Not being in writing. Verbal wills aren’t valid, except in narrow circumstances for active military personnel.
• Missing or incorrect signature. You must sign it yourself (or direct someone to sign on your behalf, in your presence).
• Witnesses not present together. Both witnesses must watch you sign at the same time — if you leave the room before both have signed, the will can be invalidated.
• A beneficiary (or their spouse) acting as a witness. Under Section 15 of the Wills Act 1837, this doesn’t void the whole will, but it does void that specific person’s gift — which can send it falling into intestacy or an unintended distribution instead.
• Lack of testamentary capacity. The testator must understand what they’re doing, the extent of their estate, and who might reasonably expect to benefit — this is tested against a long-standing legal standard from the case Banks v Goodfellow.
• Undue influence. If the will reflects someone else’s pressure rather than the testator’s genuine wishes, it can be challenged and set aside.
• A later marriage or civil partnership, which automatically revokes an earlier will unless it was made specifically in contemplation of that marriage.

What to Consider When Writing a Will in the UK

Beyond just avoiding invalidation, a genuinely solid will needs to address:

• Your full asset picture — property, savings, investments, digital assets, and anything of sentimental or significant value
• Specific versus general gifts — vague language invites disputes later
• Your executor and a backup, in case your first choice can’t act
• A guardian, if you have children under 18
• Contingencies — what happens if a beneficiary dies before you, or you and a spouse die together
• Whether your estate has any complexity — property abroad, a business, a blended family, or anything touching inheritance tax

That last point is really the dividing line for whether DIY is a sensible choice at all.

A Quick Self-Assessment: Is DIY Right for Your Will?

Answer honestly, and count how many apply to you:

• I have a single, clear main beneficiary (or a small, uncomplicated group)
• I don’t own property jointly with anyone other than a spouse as a simple joint tenancy
• I don’t have children from a previous relationship or a blended family situation
• I don’t own a business or have significant overseas assets
• There’s no concern about my mental capacity, now or reasonably foreseeable
• Nobody involved is likely to challenge or dispute the will

Five or six ticked: a well-reviewed template or online service is likely a reasonable fit.
Three or four ticked: consider at least a professional review of a self-drafted will, even if you don’t pay for a full solicitor consultation.
One or two ticked: this is the territory where DIY carries real risk, and professional drafting is worth the cost.

Your Will (UK): What Format Actually Works

Whether typed or handwritten, a valid UK will needs:

1. A clear statement that it’s your will and revokes previous wills
2. Your named executor(s)
3. A guardian, if applicable
4. Clear distribution instructions
5. Your signature
6. Two independent witnesses, present at the same time, who aren’t beneficiaries or married to one, signing in your presence

Martin Lewis Will Writing: What He Actually Recommends

Martin Lewis and MoneySavingExpert consistently point people toward free routes where eligible — Free Wills Month (March and October, for over-55s) and the National Free Wills Network — both of which involve an actual solicitor rather than a bare template. His broader caution is consistent with everything above: DIY kits are fine for simple estates, but the more complexity involved, the more a professional review matters.

Will Template UK and Writing a Will Template: What “Good” Looks Like

A decent template should walk you through each section with plain-language explanations rather than handing you a blank form, flag common pitfalls (like the beneficiary-witness rule) as you go, and ideally offer some form of review before finalising. Purely blank paper templates from a stationery shop carry the highest risk precisely because there’s no guidance built in at all.

Best Free Will Template UK and Make a Will Online Free UK

Free options generally come through seasonal charity schemes for over-55s, or occasionally through union membership benefits — both of which typically involve a real solicitor rather than a template alone. Outside of those windows, paid online services starting around £69 are the next most affordable step up, usually including at least a basic review process.

How Much Does It Cost to Make a Will With a Solicitor?

As a general 2026 guide: £150–£500 for a single will, £250–£900 for mirror wills as a couple, and £1,500 or more for anything involving a trust, business assets, or a genuinely complex estate. Regional pricing varies too, with London and the South East typically running 20–40% higher than elsewhere.

Common Mistakes to Avoid

• Using a beneficiary (or their spouse) as a witness, which voids that person’s specific gift.
• Signing without both witnesses present at the same time.
• Assuming a blank template is equivalent to a guided online service. The guidance is where the real protection lives.
• Ignoring capacity concerns. If there’s any doubt about mental capacity, professional involvement (and sometimes a medical assessment) matters far more than cost savings.
• Skipping contingency planning. What happens if a beneficiary predeceases you is one of the most commonly missed provisions.

Final Thoughts

DIY will writing isn’t reckless by default — for a genuinely simple estate, it’s a legitimate, legal, and often perfectly adequate choice. The risk isn’t in doing it yourself; it’s in doing it yourself when your situation actually needed more care than a template could give it, and not realising that until it’s too late to fix. Run the honest self-check above before you decide, not after you’ve already written it.

FAQ

Can I just write my own will in the UK?
Yes, will writing isn’t a regulated activity, so a self-written or handwritten will is legally valid provided it meets the formal signing and witnessing requirements.

What is a common mistake with a will?
Using a beneficiary or their spouse as a witness, which voids that person’s gift even though the rest of the will remains valid.

What to consider when writing a will in the UK?
Your full asset picture, specific rather than vague gifts, your executor and backup, guardianship if you have children, and any complexity like property, a business, or a blended family.

What invalidates a will in the UK?
Missing signatures, witnesses not present together, a beneficiary acting as a witness, lack of testamentary capacity, undue influence, and a later marriage that wasn’t accounted for.