Understanding Intestacy Rules vs. Having a Will: A Comparison is vital for anyone who owns a home, has a partner, children, or simply wants a say in what happens to their estate. Many people assume the law will “sort things out” if they die without a will – but for unmarried partners, blended families and those with estranged relatives, intestacy rules can produce outcomes they would never have chosen.
Tom’s story shows what can go wrong. He lived with his partner Lisa for 12 years, they owned a home together and had two children. Tom assumed Lisa would automatically inherit his share of the house and his savings. Because he died without a will, the intestacy rules meant everything passed to his parents instead. Lisa and the children had to leave the family home, even though that was never what Tom intended.
What Are Intestacy Rules?
Intestacy rules are the UK’s default legal framework for people who die without a valid will. They follow a strict “family tree”:
First: a legal spouse or civil partner
Then: children and their descendants
Then: parents, siblings, and wider relatives
They do not take into account:
Unmarried partners
Stepchildren (unless legally adopted)
Close friends or carers
Charities or causes you support
The law focuses on legal status, not on who you actually live with, care for or depend on.
Who Inherits Under Intestacy?
In England and Wales, the broad structure is:
Married or civil partnered, with children
Spouse/civil partner: personal belongings plus a fixed sum (the statutory legacy) plus half of anything above that
Children: the other half of the remainder, usually held in trust until 18
Married or civil partnered, no children
Spouse/civil partner: the whole estate
No spouse or civil partner
Children inherit everything equally
If there are no children, the estate moves down the family line: parents, siblings, nieces/nephews, grandparents, aunts/uncles and so on
If no relatives at all can be found, the estate ultimately passes to the Crown.
Unmarried partners, even after decades together, are not recognised. Stepchildren only inherit if they have been formally adopted.
Intestacy Rules vs. Having a Will: A Comparison in Practice
Looking at Intestacy Rules vs. Having a Will: A Comparison in real life makes the differences clear:
Without a Will (Intestacy)
Your partner may receive nothing if you’re not married or in a civil partnership.
Stepchildren you treat as your own are excluded.
Children receive money outright at 18, even if that feels too young.
The court decides who administers your estate and who acts for minor children.
Family may have to sell the home to “buy out” other relatives.
Administration can take longer and cost more in legal fees.
With a Will
You choose exactly who inherits and in what shares – partner, children, stepchildren, friends or charities.
You appoint executors to manage the estate and guardians to care for children.
You can use trusts to delay or control when children receive money.
You can protect a partner’s right to live in the property whilst ring-fencing the value for children.
You can make specific gifts of sentimental items, not just money.
You can include guidance on your funeral wishes to reduce family conflict.
In short, intestacy gives you a rigid, one-size-fits-all solution. A will gives you control, flexibility and protection for the people you actually care about.
Who Is Most at Risk If They Don’t Have a Will?
Relying on intestacy is especially risky if you:
Live with a partner but are not married or in a civil partnership
Have children from previous relationships
Have stepchildren you want to provide for
Are estranged from close relatives
Own a home with someone else
Want to leave gifts to friends, grandchildren or charities
A clear, properly drafted will can prevent forced house sales, unfair distributions and bitter disputes between relatives.
How Viva Planning Can Help
Putting a will in place doesn’t have to be complicated or overwhelming. Viva Planning works with experienced estate planners who can help you:
Understand your current position under intestacy
Decide who you want to protect and how
Use wills and trusts to balance the needs of a partner, children and stepchildren
Reduce the risk of disagreements and uncertainty for your family
Talking about the future can feel difficult, but leaving no plan at all is often far harder for those you leave behind.
