Inheritance Split Between Siblings

When do siblings inherit an estate?

Siblings inherit only when nobody closer in the intestacy order survives. If a person dies without a will and leaves no spouse or civil partner, no children or grandchildren, and no living parent, the estate passes to their brothers and sisters (gov.uk, as at July 2026, subject to change). A surviving spouse, child or parent takes ahead of a sibling, so siblings often inherit in families where the person was unmarried and had no children.

The order of inheritance without a will

Intestacy follows a strict statutory order, and each category that has a survivor excludes every category below it. A spouse or civil partner comes first, then children and their descendants, then parents, and only then brothers and sisters. The list below reflects the rules for England and Wales (gov.uk, as at July 2026, subject to change).

Order	Who inherits (if no one above survives)
1	Spouse or civil partner (takes the statutory legacy of £322,000, the personal chattels and half the residue where there are also children)
2	Children and their descendants (grandchildren by representation)
3	Parents (equally, if both survive)
4	Brothers and sisters of the whole blood, and their children by representation
5	Brothers and sisters of the half blood, and their children by representation
6	Grandparents (equally)
7	Uncles and aunts of the whole blood, then of the half blood, and their children

Order

Who inherits (if no one above survives)

Spouse or civil partner (takes the statutory legacy of £322,000, the personal chattels and half the residue where there are also children)

Children and their descendants (grandchildren by representation)

Parents (equally, if both survive)

Brothers and sisters of the whole blood, and their children by representation

Brothers and sisters of the half blood, and their children by representation

Grandparents (equally)

Uncles and aunts of the whole blood, then of the half blood, and their children

Siblings share equally

When brothers and sisters do inherit, they take in equal shares. If four siblings survive, each generally receives a quarter of the estate that passes to that class, regardless of age, gender or how close they were to the person who died (gov.uk, as at July 2026, subject to change). Intestacy does not weight shares by need or relationship, which is one reason many people who want a different split choose to make a will instead.

The estate here means what is left after debts, funeral costs and any inheritance tax have been settled. Inheritance tax is charged at 40% on value above the available nil-rate band of £325,000 per person, so a large estate passing to siblings may face tax before the shares are worked out (gov.uk, as at July 2026, subject to change).

For how the estate is gathered and paid out, see What Is Probate?

Full siblings and half-siblings

Full and half-siblings sit in different places in the order. Brothers and sisters of the whole blood, meaning those who share both parents with the person who died, inherit before brothers and sisters of the half blood, who share only one parent (gov.uk, as at July 2026, subject to change). Half-siblings inherit only where there are no full siblings or their descendants. Where they do inherit, half-siblings of the same class share equally among themselves.

What if a brother or sister has already died?

The share does not simply disappear. Where a sibling died before the person whose estate is being distributed but left children, those children, the nieces and nephews, step into their parent's place and take that share between them. This is known as taking by representation, or per stirpes (gov.uk, as at July 2026, subject to change). If a deceased sibling left no children, their share is divided among the surviving siblings instead.

How representation works (illustration only). A woman dies without a will, unmarried, with no children and no living parents. She had three siblings. One brother has already died, leaving two children. Under intestacy the estate is divided into three equal parts: her two surviving siblings take one part each, and the late brother's two children share his one part between them, so a quarter of the estate each within that branch (gov.uk, as at July 2026, subject to change). Change the family and the split changes, so this is general information rather than a calculation for any real estate.

What if there is a will?

A valid will overrides the intestacy rules entirely. Where there is a will, siblings inherit only what the will leaves them, which may be everything, a fixed sum, a share of the residue, or nothing at all (gov.uk, as at July 2026, subject to change). The equal-split rules described above apply only on intestacy. Many people make a will precisely so that brothers and sisters, or particular ones, are provided for in the way they intend rather than by a fixed formula.

A will comes first. Intestacy only fills gaps where there is no valid will, or where part of an estate is left undisposed of.

Unequal shares are allowed. A will can leave siblings different amounts, or leave a sibling out, subject to any claim under the Inheritance (Provision for Family and Dependants) Act 1975.

Beneficiaries can redirect. Within two years of death, those who inherit can sometimes vary who receives what by a deed of variation, which can have tax effects (gov.uk, as at July 2026, subject to change).

A worked example

Take a straightforward case to see the split in practice. It is an illustration only, and the answer changes with the family and the figures involved.

Illustration only. A man dies without a will. He was single, had no children and no surviving parents, and his estate after debts is worth £600,000. He is survived by two full brothers and one half-sister. Because he has full siblings, the whole-blood brothers inherit ahead of the half-sister, who does not inherit here (gov.uk, as at July 2026, subject to change). Inheritance tax may apply to value above the £325,000 nil-rate band at 40% first (gov.uk, as at July 2026, subject to change). The net estate is then divided equally, so each brother takes half. Change the survivors and the split changes, so this is general information, not a calculation for any real estate.

Splitting between siblings in Scotland and Northern Ireland

The order differs across the UK. The rules above are for England and Wales. Scotland has its own succession law, with prior rights and legal rights that can give a spouse and children fixed entitlements before siblings are reached, and its intestacy order is set out separately (gov.uk, Scotland intestacy, as at July 2026, subject to change). Northern Ireland follows its own rules again (gov.uk, Northern Ireland intestacy, as at July 2026, subject to change). Where an estate touches more than one UK nation, it can be worth taking advice in each. For the wider picture, see our estate planning guide.

Frequently asked questions

Is inheritance always split equally between siblings?

Only under intestacy, and only within the same class of sibling. Where there is no will and brothers and sisters inherit, they generally share equally, with no weighting for age or closeness (gov.uk, as at July 2026, subject to change). A will can divide an estate unequally or leave a sibling out, so an even split is not automatic in every case.

Do siblings inherit if there is a surviving spouse?

Generally not under intestacy. A surviving spouse or civil partner, and any children, take ahead of brothers and sisters. Where there are children, the spouse first receives the statutory legacy of £322,000, the personal possessions and half the residue (legislation.gov.uk, from 26 July 2023, as at July 2026, subject to change). Siblings usually inherit only where no spouse, children or parents survive.

How do half-siblings inherit compared with full siblings?

Full siblings come first. Brothers and sisters of the whole blood, who share both parents, inherit before half-siblings, who share only one parent, so half-siblings inherit only where there are no full siblings or their descendants (gov.uk, as at July 2026, subject to change). Where half-siblings do inherit, those of the same class share equally between themselves.

What happens to a share if a sibling has died?

Where a brother or sister died before the person whose estate is being shared but left children, those nieces and nephews take their parent's share between them, known as taking by representation (gov.uk, as at July 2026, subject to change). If a deceased sibling left no children, that share is instead divided among the surviving siblings.

Can I leave more to one sibling than another?

Yes, through a will. A will can leave siblings different amounts, or nothing, rather than the equal split intestacy imposes (gov.uk, as at July 2026, subject to change). Bear in mind that certain people can bring a claim under the Inheritance (Provision for Family and Dependants) Act 1975. Many people discuss how to word a will with a qualified professional.

Do step-siblings inherit under intestacy?

Not automatically. The intestacy rules pass an estate to blood relatives and to a spouse or civil partner, and a step-sibling who is not related by blood and not adopted into the family is not in the statutory order (gov.uk, as at July 2026, subject to change). To provide for a step-sibling, one option some consider is naming them in a will.

About Fairchild Oldfield

The Fairchild Oldfield team brings together estate planning, tax, independent financial advice and client care, working with families across England and Wales.

Fairchild Oldfield are estate planning specialists and will writers, not a firm of solicitors. This article is general information based on practical experience, not legal, tax or financial advice.

Important: This article is general information only and is not legal, tax or financial advice. Reading it does not create a professional relationship. It is based on the law of England and Wales, and other UK jurisdictions such as Scotland and Northern Ireland may differ. Figures and rules are current as at July 2026 and are subject to change. Before acting, many people choose to seek advice from a suitably qualified professional, such as a solicitor, a STEP practitioner, an accountant, or an FCA-authorised financial adviser, who can consider individual circumstances.

How Inheritance Is Split Between Siblings