Who can apply to change a child’s surname?

A parent or guardian who holds parental responsibility applies on the child’s behalf — but the change needs the written consent of everyone who holds parental responsibility, not just the applicant.

What if the other parent refuses?

There is no lawful shortcut: your only route is applying to the family court for a Specific Issue Order using form C100, and a judge decides based on the child’s welfare. We will not sell a document that would not be valid.

Does it matter whether the father is on the birth certificate?

Yes. An unmarried father not named on the birth certificate, without a court order or parental responsibility agreement, does not hold parental responsibility — so his consent is not legally required. If you are unsure who holds parental responsibility, check gov.uk before ordering.

What documents will schools and HMPO want?

The signed child deed poll plus the signed consent letters from every holder of parental responsibility. Schools and GPs usually accept a photocopy; HMPO wants the original wet-ink deed poll.

Changing Your Child’s Surname: Rules and Consent

Quick answer

To change a child’s surname in the UK you need a child deed poll applied for by a parent or guardian — and the written consent of everyone who holds parental responsibility, usually both parents. Without everyone’s consent the only route is a Specific Issue Order (form C100) from the family court. Our £17.99 pack includes the deed poll and the consent letters.

Checked by Sarah Ellison, paralegal — last reviewed 6 January 2026

Start your child’s deed poll — £17.99

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What is the process for changing a child’s surname?

A parent or guardian completes a child deed poll on the child’s behalf; every holder of parental responsibility signs a consent letter; the deed poll is signed in ink in front of two independent witnesses aged 18 or over. Keep the consent letters with the deed poll — HMPO and schools may ask for them. The £17.99 child deed poll pack generates both documents together.

Why does consent matter so much for surnames?

A surname signals family identity, and the law treats changing it as a major decision — so every holder of parental responsibility must agree, whatever the contact or maintenance arrangements. Consent disputes after separation are the single most common reason child deed polls fail; read parental responsibility and name changes and whether the father has to agree.

What happens without the other parent’s consent?

Any deed poll made without everyone’s consent is not valid, and record-holders who discover the dispute will refuse it. The lawful route is a Specific Issue Order (form C100) — the court fee applies and a judge decides on the child’s welfare. Free guidance is at gov.uk/change-a-childs-name.

Can a teenager change their own surname?

From 16, yes — a person executes their own adult deed poll and no parental consent is needed. Child deed polls are for under-16s only.

Good to know

Changing Your Child’s Surname: Rules and Consent

What is the process for changing a child’s surname?

Why does consent matter so much for surnames?

What happens without the other parent’s consent?

Can a teenager change their own surname?

Frequently asked questions

Who can apply to change a child’s surname?+

What if the other parent refuses?+

Does it matter whether the father is on the birth certificate?+

What documents will schools and HMPO want?+