If you have changed your name by deed poll, you do not automatically need to rewrite your will — and the good news is that a name change does not invalidate an existing will. In England, Wales and Northern Ireland a will stays valid as long as the people in it can still be identified, so a different surname on your deed poll will not cancel a will you signed under your old name. That said, it is genuinely good practice to update your will after a name change so there is no room for confusion, either by adding a short formal amendment (a “codicil”) or by making a fresh will.
This guide explains when an update matters, how to do it, and the one situation that really does revoke a will — getting married or entering a civil partnership. It is general information, not personalised legal advice, so if your estate is complex it is always worth speaking to a solicitor.
Does a name change automatically invalidate your will?
No. Changing your name — whether by unenrolled deed poll, marriage or any other route — does not make your existing will invalid. The law cares about intention and identity, not the exact spelling of your name. If your will was valid when you signed it, and the person named in it (you) is still clearly identifiable, it remains a valid will.
The same principle protects anyone else named in your will. If you left a gift to a beneficiary under their old name, or appointed an executor who has since changed theirs, the gift or appointment still stands — provided it is clear who is meant. Courts and probate registries are used to matching people to slightly different names, especially where a deed poll or marriage certificate can bridge the gap.
So why bother updating it at all? Because “clearly identifiable” can become “arguable” once you are no longer around to explain. Clarity now saves your executors time, cost and stress later.
Why it’s still best practice to update your will after a name change
Updating your will after a name change is about removing doubt, not satisfying a legal requirement. A few reasons it is worth doing:
- Your executors’ job is easier. A will that names you by your current legal name matches your death certificate, bank records and property deeds, so probate runs more smoothly.
- Ambiguity invites disputes. If a beneficiary’s name in the will no longer matches their ID, someone may need to prove they are the intended person — extra evidence, extra delay.
- Your circumstances have often changed too. People frequently change their name around a big life event (marriage, divorce, transition, a fresh start). It is a natural moment to check the will still reflects your wishes.
None of this is urgent in the way a passport or DVLA update is, but it belongs on your wider admin list. Our checklist for updating your ID after a name change is a good companion — your will is one more record that should eventually reflect your new name.
Codicil or a new will: how to update it
According to GOV.UK, if you want to update your will you make an official alteration called a codicil, or you make a new will. You should never simply cross out or write over your existing will — unofficial alterations can cause the change (or the whole will) to fail.
A codicil is a short, separate document that amends your existing will — ideal for a straightforward change such as updating your name or a beneficiary’s name. It must be signed and witnessed with the same formalities as the original will: signed by you in the presence of two independent adult witnesses, who then sign too. A codicil is cheap and simple, but if you have several changes to make, multiple codicils can get confusing.
A new will is the cleaner option if there is a lot to change, or if you simply want one tidy, up-to-date document. A properly drafted new will revokes all previous wills and codicils, so nothing old is left floating around.
For a simple name update, a codicil is often enough. For anything more involved — new relationships, children, property or business interests — a fresh will drafted with a solicitor is usually the safer choice.
Don’t forget the people named in your will
A name change is a good prompt to review not just your name but everyone else’s:
- Executors — the people who will carry out your wishes. If one has changed their name, note it so they are easy to identify.
- Beneficiaries — anyone inheriting under the will. A child who has since married, or a relative who changed their name by deed poll, is worth updating for clarity.
- Guardians — if you have appointed guardians for children, check their details too.
Witnesses are the exception: once a will is validly signed and witnessed, a witness later changing their name does not affect the will at all. There is nothing to redo.
The big exception: marriage and civil partnership
Here is the crucial difference. A simple name change does not revoke your will — but getting married or entering a civil partnership generally does. Under long-standing law in England, Wales and Northern Ireland, marriage or civil partnership automatically revokes any earlier will, unless that will was specifically made “in contemplation of” marrying or forming a civil partnership with that particular person.
This catches a lot of people out, because many change their name because they are getting married. If that is you, be aware that after the wedding your old will is likely to have been cancelled by the marriage itself — not by the name change — and you may effectively have no valid will (meaning your estate would pass under the intestacy rules). The fix is simply to make a new will after marrying, or a will made in contemplation of the marriage beforehand. (Note: Scotland treats this differently, so the rules there are not the same.)
If you are marrying, treat “review my will” as part of the wedding admin, right alongside updating your records with government and banks.
Keep your deed poll with your will
Whether or not you update the wording, keep your deed poll (or marriage certificate) stored safely with your will. It is the document that proves your old and new names belong to the same person, so it lets your executors join the dots without difficulty. Tell whoever holds your will — a solicitor, family member or executor — that the deed poll is there and what it is for.
It’s also a natural moment to update the name on your pension and to check the beneficiaries you’ve nominated there still match your will.
Frequently Asked Questions
Does changing my name by deed poll cancel my will?
No. A deed poll name change does not invalidate an existing will. Your will remains valid as long as you (and anyone named in it) can still be identified. Updating it is best practice for clarity, not a legal requirement.
Do I need a whole new will, or just a codicil?
For a simple name change, a codicil — a short, signed and witnessed amendment — is usually enough. If you have several changes or want a tidy single document, making a new will is often the cleaner choice.
What if a beneficiary in my will has changed their name?
Their gift still stands as long as it is clear who is meant. It is wise to update the will (or add a codicil) so the name matches their current ID, which makes probate simpler and avoids any dispute over identity.
Does getting married affect my will?
Yes — and this is the important one. In England, Wales and Northern Ireland, marriage or civil partnership generally revokes an earlier will automatically, unless the will was made in contemplation of that marriage. If you are marrying, plan to make a new will.
I was a witness to a will and I’ve changed my name — is the will still valid?
Yes. Once a will has been validly signed and witnessed, a witness later changing their name has no effect on it. Nothing needs to be redone.
Where should I keep my deed poll in relation to my will?
Keep the deed poll stored safely with your will, and tell your executor it is there. It proves your old and new names are the same person, which helps everything run smoothly.
Ready to Change Your Name?
If you still need to make your name change official, we can help. Our professionally printed, legally valid unenrolled deed poll starts from just £14.49, with same-day dispatch on orders placed before 3pm and free Royal Mail Tracked delivery. The online order takes around four minutes, and we have helped over 160,000 UK customers change their name with confidence. Order today, keep the deed poll safe with your will, and you will have exactly what your executors need to identify you clearly.