To change the name of a child under 16 in the UK, every person with parental responsibility for that child must consent. Not just the parent the child lives with, not just the parents on the birth certificate — everyone who holds parental responsibility, including a parent the child rarely sees. If one of them will not agree, the only lawful route is an application to the family court. This guide explains who has parental responsibility, how to check, and what happens when consent is missing.
Checked against GOV.UK and HM Passport Office guidance, September 2026. England and Wales unless stated; Scotland and Northern Ireland differences are noted where they apply.
The rule exists because a child's name is treated as a decision belonging to both parents, and the law will not let one parent make it alone. It catches people out most often after a separation, when the resident parent assumes they can change the child's surname to match their own. They cannot, unless the other parent with parental responsibility agrees or a court orders it.
Who has parental responsibility
| Who | Has parental responsibility? | How |
|---|---|---|
| The mother | Always | Automatically, from birth |
| A father married to the mother (at the birth or later) | Yes | Automatically |
| An unmarried father named on the birth certificate | Yes, if the birth was registered on or after 1 Dec 2003 (England & Wales), 4 May 2006 (Scotland) or 15 Apr 2002 (Northern Ireland) | By registration |
| An unmarried father not on the certificate, or registered before those dates | Not automatically | Parental responsibility agreement with the mother, joint re-registration, marriage, or a court order |
| A second female parent (fertility treatment, conditions met) | Same rules as a father | Registration, agreement or order |
| A step-parent | Not by marriage alone | Agreement signed by everyone who already holds it, or a court order |
| Adoptive parents | Yes | The adoption order (birth parents' responsibility ends) |
| Special guardians | Yes | The special guardianship order |
| A local authority | Shares it | Under a care order |
| Grandparents, relatives, long-term carers | No | Unless a court has granted it |
How to check who has parental responsibility
- Look at the birth certificate. If the father is named and the birth was registered after the dates above, he has parental responsibility. If only the mother is named, he does not, unless he has acquired it since.
- Ask about marriage. If the parents were married at the birth or married later, the father has it regardless of the certificate.
- Ask about agreements and orders. A signed parental responsibility agreement or any court order (parental responsibility order, child arrangements order naming the person the child lives with, special guardianship order, adoption order) confers it. Keep copies.
If you are unsure, assume the other parent has it. The consequence of getting this wrong — a deed poll signed without a required consent — is that the document is not valid and organisations will refuse it.
What consent looks like
Everyone with parental responsibility signs the child's deed poll, or signs a consent form that accompanies it. Consent must be freely given and informed: the person must know the exact new name. An organisation such as HM Passport Office will check that the deed poll carries the consent of everyone who holds parental responsibility before it will issue a passport in the new name.
Our child deed poll is built around this rule: the form captures each person with parental responsibility, and the printed document includes the consent declarations for them to sign. If only one person holds parental responsibility — for example an unmarried mother whose child's father is not on the birth certificate and has never acquired it — that one signature is enough, and the deed poll should say so.
If a parent will not consent, or cannot be found
You cannot go around them. The route is an application to the family court for a specific issue order under the Children Act 1989, asking the court to decide the question of the child's name. The court's only test is the child's welfare, and it will weigh things like the child's own wishes (increasingly with age), the child's relationship with each parent, and any confusion or distress the current name causes. Courts are generally reluctant to change a child's surname simply because a parent has remarried or separated, but they do grant orders where the welfare case is clear. Our guide to changing a child's surname without the other parent goes through that application in detail.
If the other parent cannot be traced, the court can still make an order, but it will expect evidence that you have made genuine efforts to find and notify them. In all cases a court fee applies and the process takes months, so it is worth exhausting agreement first — a mediated conversation about the child's name resolves many disputes without proceedings. If you are separating, changing your own name after separation needs nobody's consent; it is only the child's name that does.
Children aged 16 and 17, and Scotland
In England, Wales and Northern Ireland, a young person aged 16 or 17 can change their own name by deed poll without parental consent, though they may find it useful to have a parent's support with the paperwork. In Scotland, a person can change their own name from 16, and the parental-responsibility rules for younger children mirror those above with the Scottish dates. Our guide to a deed poll for a child over 16 covers the details.
Schools and “known as” names
A school can agree to use a different name informally on registers and in class without a legal name change, and some will do so at the request of the resident parent. That does not change the child's legal name, and it does not need parental responsibility consent, but many schools will ask whether the other parent objects. Passports, GP records and official documents stay in the legal name until a valid deed poll is made. The wider process is in our guide to changing a child's name in the UK.
Frequently Asked Questions
Can I change my child's surname without the father's consent?
Only if he does not have parental responsibility, or a court orders it. If he is named on the birth certificate (for a birth registered after 1 December 2003 in England and Wales) or was married to you, he has it and must consent.
Does a step-parent have parental responsibility?
Not by marriage alone. A step-parent acquires it through a parental responsibility agreement signed by everyone who already holds it, or through a court order.
What if the other parent has had no contact for years?
Parental responsibility does not lapse through absence. Their consent is still needed, or a court order. If they cannot be traced, the court can decide, but it will expect evidence that you tried to find them.
Can the court change a child's name?
Yes, through a specific issue order under the Children Act 1989. The court decides on the child's welfare alone and will listen to the child's own wishes as they get older.
At what age can a child change their own name?
From 16 in England, Wales, Northern Ireland and Scotland a young person can make their own deed poll without parental consent.
Is a child's deed poll valid if one consent is missing?
No. If someone with parental responsibility did not consent, the deed poll is not valid and HM Passport Office and other bodies will refuse it. Get every consent, or a court order, before the document is signed.
Ready to Change Your Child's Name?
Once everyone with parental responsibility agrees, UK Name Change provides a professionally printed child deed poll for £14.49 with the consent declarations built in, accepted by HM Passport Office, the DVLA, the NHS and every UK school and bank. Same-day dispatch before 3pm and free Royal Mail Tracked delivery.
