“Next of kin” is one of the most widely used and most widely misunderstood phrases in British life. It appears on hospital admission forms, employment records, and school paperwork, and it comes up constantly in the days after a death. Most people assume it carries legal weight – that being someone’s next of kin means you can make decisions about their care, access their records, or take charge of their estate.
In England and Wales, it means none of those things. The short answer is this: next of kin has no legal definition in England and Wales, and being named as someone’s next of kin gives you no automatic authority over their medical treatment, their money, or their estate. It identifies who should be contacted and consulted. Real legal authority comes from somewhere else entirely – a lasting power of attorney while the person is alive, and a grant of probate or letters of administration after they die.
This guide explains what the term means in practice, who tends to count, why the eldest child is not automatically next of kin, and which documents give you the authority people assume the phrase carries.
What does next of kin mean in the UK?
Next of kin is an everyday phrase describing a person’s closest living relative or the person they have nominated as their main point of contact. It is not a legal status and no single statute in England and Wales defines it.
National Police Chiefs’ Council guidance for family liaison officers puts it directly: “The term NoK is widely used, but has no legal definition in the UK. An individual can nominate any person as their NoK.” The same document is equally blunt about what follows from that: “The status of NoK confers no legal rights or powers and has no special responsibilities, except in the specific context of the Mental Health Act” (NPCC – Next of Kin: Glossary of Terms, November 2020).
What makes the term confusing is that several different legal tests all sit underneath it, and each one can point to a different person:
| Context | The term the law uses | Source |
|---|---|---|
| Hospital admission, GP registration | Next of kin or emergency contact – freely nominated | No statutory basis; local NHS practice |
| Detention and discharge under mental health law | Nearest relative – fixed statutory order | Mental Health Act 1983, s.26 |
| Consent to post-mortem tissue retention | Qualifying relationship – fixed statutory ranking | Human Tissue Act 2004 |
| Decisions for someone who lacks capacity | Attorney under an LPA, or court-appointed deputy | Mental Capacity Act 2005 |
| Inheriting where there is no will | Order of priority under the intestacy rules | Administration of Estates Act 1925, s.46 |
| Administering an estate | Personal representative – executor or administrator | Grant of probate or letters of administration |
Someone can be the next of kin on a hospital form, the nearest relative under the Mental Health Act, and have no entitlement whatsoever to administer the estate. All three can be true of different people in the same family at the same time.
Who counts as next of kin?
There is no statutory list for general purposes, but institutions that ask the question tend to work down a familiar order of closeness:
- Spouse or civil partner
- Children aged 18 or over
- Parents
- Siblings
- Grandparents
- Grandchildren
- Aunts and uncles, nieces and nephews
This ordering is a convention rather than a rule, and it is applied loosely. Where the law does fix a ranking, it does so for one narrow purpose only. The Human Tissue Act 2004, for example, ranks people in a “qualifying relationship” for consent to post-mortem tissue retention, and that ranking runs: spouse or partner; parent or child; brother or sister; grandparent or grandchild; niece or nephew; stepfather or stepmother; half-brother or half-sister; and finally friend of long standing (Human Tissue Act 2004, s.27).
Two points about that list are worth drawing out, because they surprise people.
A friend can be next of kin. In a hospital setting you can nominate anyone. There is no requirement for a blood relationship or a marriage, and hospitals routinely record partners, friends, and neighbours. The Human Tissue Act ranking even includes a “friend of long standing” as a formal category.
Cohabiting partners occupy an awkward middle ground. A partner you were not married to will usually be treated as your next of kin by a hospital without question. Under the intestacy rules they inherit nothing at all, regardless of how many years you lived together. The same person, the same relationship, two completely opposite answers depending on which question is being asked. Our guide to the intestacy rules covers what cohabiting partners can do about this.
Is the eldest child next of kin in the UK?
No. Where a parent dies and their children are the closest surviving relatives, every child ranks equally – regardless of age, and regardless of sex. There is no rule anywhere in English inheritance law that puts the eldest child ahead of their siblings.
Under the intestacy rules, children inherit in equal shares. When applying for letters of administration, gov.uk describes the entitled applicants as “the closest living relative - normally the husband, wife or civil partner (including if you were separated) followed by any children 18 or over (including legally adopted children but not step-children)” – as a class, with no seniority among them (gov.uk – Applying for probate: if there’s not a will). Where several children are equally entitled, any of them can apply, or up to four can apply together.
The belief is so persistent because it has one real statutory root, in a place most people will never encounter. Section 26(3) of the Mental Health Act 1983 sets out how to identify a patient’s “nearest relative”, and it does prefer “the elder or eldest of two or more relatives described in any paragraph of that subsection being preferred to the other or others of those relatives, regardless of sex” (Mental Health Act 1983, s.26).
So the eldest child does take priority there – but only for deciding who holds nearest-relative rights over a detained psychiatric patient, and only while that person is alive. It has no application to funerals, wills, probate, or inheritance. Anyone citing “eldest child is next of kin” in an argument over a parent’s estate is borrowing a rule from a completely unrelated part of the law.
Can next of kin make medical decisions?
No. This is the misunderstanding with the most serious consequences, because families often discover it at the worst possible moment.
If an adult loses the capacity to make a decision about their own treatment, their next of kin cannot consent to or refuse that treatment on their behalf. NHS guidance is that where a person lacks capacity and has not appointed a lasting power of attorney, “the healthcare professionals treating them can go ahead and give treatment if they believe it’s in the person’s best interests” (NHS – Consent to treatment).
Family are consulted, and that consultation is a legal requirement rather than a courtesy. Section 4(7) of the Mental Capacity Act 2005 requires the decision-maker to take into account the views of anyone named by the person as someone to be consulted, anyone engaged in caring for them or interested in their welfare, any attorney under a lasting power of attorney, and any court-appointed deputy (Mental Capacity Act 2005, s.4). What you know about the person’s wishes, beliefs, and values matters, and should be recorded. The final decision still rests with the clinical team.
The NPCC guidance describes the same position from the other direction: an emergency contact “has no power to make any decisions regarding medical care and can neither override the previously stated wishes of the patient, nor prevent the medical team acting in what they consider to be the best interests of the patient.”
Where medical decision-making authority does come from
Only two routes give a person legal authority over another adult’s health and welfare decisions:
- A registered health and welfare lasting power of attorney. The person must set this up while they still have capacity, and it must be registered with the Office of the Public Guardian before it can be used. Our guide to lasting power of attorney covers the process and the current registration fee.
- A deputy appointed by the Court of Protection. This is the route where someone has already lost capacity without making an LPA. It is slower and more expensive – see our guide to Court of Protection deputyship for the application process and costs.
Gov.uk’s guidance on making decisions for someone else lists the lasting power of attorney, the Court of Protection deputyship, and the pre-2007 enduring power of attorney as the available routes. Next of kin does not appear on that page at all (gov.uk – Make decisions on behalf of someone).
A person can also record their own refusal of specific treatment in advance, which binds clinicians in a way that a relative’s opinion does not. See our guide to advance decisions.
Next of kin when someone dies
When someone dies, “next of kin” describes whoever the hospital, police, or coroner contacts first. It does not describe who is in charge.
Here is what practically happens, and who holds authority at each stage.
Being informed and consulted. If the death happens in hospital or is reported to a coroner, the recorded next of kin is contacted. The Coroners and Justice Act 2009 uses its own separate category of “properly interested person”, which is a broad list including spouses, partners, parents, children, siblings, personal representatives, and anyone the coroner considers to have sufficient interest. That list is wider than any one family’s idea of next of kin.
Registering the death. This is done by a qualified informant – usually a relative present at the death or living in the area, and in practice often the person the family thinks of as next of kin. It is an administrative step and confers no ongoing authority.
Arranging the funeral. Funeral directors act on the instructions of whoever engages them, known as the applicant. As the NPCC guidance explains, “the applicant may be the executor, next of kin (NoK), a relative or another person”, and ashes can only be released to that applicant or to someone they authorise in writing under section 7 of the Cremation Act 1902. Being next of kin gives no automatic right to control the funeral or to take possession of the ashes – signing the paperwork does.
Dealing with the estate. Legal authority over the deceased’s money and property belongs to the personal representative, and to nobody else:
| Next of kin | Attorney under an LPA | Executor or administrator | |
|---|---|---|---|
| Where it comes from | Nomination or family relationship | A registered LPA the person made | A will, or a grant from the probate registry |
| Can make medical decisions | No | Yes, if a health and welfare LPA | No – authority begins at death |
| Can access bank accounts | No | Yes, if a property and financial affairs LPA | Yes, once the grant is issued |
| Can sell property or distribute the estate | No | No | Yes |
| Status after death | A contact, consulted as family | Ends immediately at death | Active from death until the estate is settled |
A lasting power of attorney is worth singling out, because families often assume it carries over. It does not. An LPA ends the moment the person dies, and an attorney has no authority over the estate unless they were separately named as executor.
Where there is a will, the executor named in it applies for a grant of probate. Where there is no will, the closest relative applies for letters of administration, and the right to apply follows the same order of priority as the intestacy rules. This is why next of kin and administrator are so often the same person, and why the distinction still matters: the authority comes from the grant, not from the relationship. Before either applies, check whether a grant is needed at all – many smaller estates are settled without one, as our guide on whether you need probate explains.
Notifying government departments. Next of kin is one of the categories of person who can use the Tell Us Once service to report a death to most government departments and the local council in a single step. This is one of the few places where the term does real work, because the service is open to the next of kin, the executor, or anyone dealing with the deceased’s affairs.
Does next of kin have to pay for the funeral?
Being next of kin does not by itself make you personally liable for the funeral bill. The liability follows the contract – whoever signs as the applicant with the funeral director is responsible for paying, whether or not they are the closest relative.
Reasonable funeral expenses rank ahead of most other debts and are payable from the deceased’s estate. Many banks will release funds directly to a funeral director from the deceased’s account before probate is granted, on production of the invoice and the death certificate.
Where the estate cannot cover the cost, a Funeral Expenses Payment may be available to people receiving certain benefits. If nobody is able or willing to arrange a funeral, the local authority or NHS trust has a duty to do so under section 46 of the Public Health (Control of Disease) Act 1984.
Can next of kin see someone’s medical records?
Not automatically, in either direction.
While the person is alive and has capacity, their medical records are confidential to them. Being their next of kin gives no right of access, and staff should not share clinical details without the patient’s agreement. Even the Mental Health Act’s “nearest relative”, who holds real statutory powers, does not have a right to be told everything about a patient’s treatment.
After a death, access is governed by the Access to Health Records Act 1990, which gives a right of access to the deceased’s personal representative and to anyone who may have a claim arising out of the death (Access to Health Records Act 1990, s.3). The personal representative is the executor or administrator. A relative who holds neither role has no automatic entitlement, though records may still be shared at the organisation’s discretion.
How to make sure the right person has authority
If you have read this far because you want the person you trust to have real standing, the term “next of kin” will not deliver it. Four documents will:
- A registered lasting power of attorney, covering health and welfare, property and financial affairs, or both. Register it well before you think you might need it – see lasting power of attorney.
- An advance decision to refuse treatment, if there is specific treatment you would not want. See advance decisions.
- A will naming an executor. This is the single most important step for anyone unmarried, in a blended family, or with a cohabiting partner, because it overrides the intestacy order entirely. See how to write a will.
- Nominations on pensions and life insurance. These pass outside the estate to whoever is named, so keep the nominations current.
For anyone living with a partner they are not married to, the third and fourth items are the difference between their partner inheriting and their partner inheriting nothing.
Summary
Next of kin is a contact, not a title. In England and Wales it has no statutory definition, and it gives you no power to consent to medical treatment, no right of access to medical records, and no authority over a deceased person’s estate. You can nominate whoever you like as your next of kin in a hospital setting, including a friend, and that nomination carries no legal weight beyond identifying who gets the phone call.
The eldest child is not automatically next of kin. Children rank equally under the intestacy rules and equally as applicants for letters of administration. The eldest-child rule exists in one narrow statutory corner – identifying a “nearest relative” under the Mental Health Act 1983 – and has nothing to do with estates.
Where authority matters, it comes from a document: a registered lasting power of attorney during someone’s lifetime, and a grant of probate or letters of administration after their death. If you are dealing with an estate now, start with our guides to the intestacy rules and executor duties. If you are planning ahead, a will and an LPA between them settle every question this article raises.