A Will at 27 With a Toddler and a Joint Mortgage

Do you need a will in your twenties if you have a baby? Yes — and the reason is not the one that usually gets trotted out. At 27 your chance of dying in any given year is genuinely low, which is exactly why people your age skip a will and feel sensible doing it. But a will in your twenties is not really about your money. It is the only document in which you can name who raises your child, and the only thing that stops a joint mortgage and an intestacy formula deciding your family's future for you. Those problems do not care how young you are. They arrive in full the day they arrive at all.

So the calculation is not "am I likely to die soon" — you are not. It is "if the improbable thing happened, what would my toddler's life look like the next morning, and have I left anyone the tools to sort it out". For a young parent with a small child and a mortgage shared with a partner, the honest answer without a will is: messier, slower and more precarious than it needed to be.

This page looks at what the death data actually says for people your age, then sets out the twenty-minute version of a will that covers the things that genuinely matter.

The short answer: yes, but not for the reason you think

Most articles that tell young parents to make a will lean on "you never know". It is true, but it is weak, because everybody already knows they might die and files it under things that happen to other people. The stronger case is specific. Only a will lets you appoint a guardian. Only a will keeps your estate out of the rigid intestacy formula. And only a will lets you decide the age at which a child gets their hands on money, rather than defaulting to the day they turn eighteen. None of those depends on your being old or wealthy. They depend on your being a parent, which you already are.

The age question is worth taking seriously rather than dismissing, though, because it is the thing quietly telling you not to bother. So let us look at what the numbers really say.

What the death data actually says at your age

Death in your late twenties and thirties is uncommon. In any single year the odds are firmly in your favour, and nothing here is meant to frighten you into thinking otherwise. But two features of the data matter for the decision in front of you.

The first is that when people at this age do die, the causes are mostly sudden. Across people in their twenties and thirties in England and Wales, the leading causes of death are not the slow illnesses of later life. They are external and abrupt — accidents, suicide and drug-related poisoning feature heavily — with cancers and heart conditions only beginning to climb through the later thirties and forties. The practical point is blunt: deaths at your age tend not to come with months of warning in which to finally sort out a will. They come without notice, which is precisely the scenario a will exists for.

Source: Office for National Statistics, Deaths registered in England and Wales (Series DR): 2024, published under the Open Government Licence v3.0.

The second is that a will is not a bet on this year. Once signed, it stands until you replace it. Making one at 27 is not a prediction that 27 is dangerous; it is putting a safety net under every year between now and whenever you next update it. The low annual risk is an argument for how little the will has to cost you in worry, not an argument against having one.

Why parenthood, not age, is the real trigger

Here is the thing a will does that nothing else can. In it, you appoint a guardian: the person who would raise your child if you and the other parent were both gone. Name nobody, and you have not avoided the decision — you have handed it to other people. Relatives may put themselves forward, they may disagree, and if they cannot settle it, the family court decides who raises your child on the basis of the child's welfare rather than your wishes. Your voice is strongest when it is written down; it is weakest when it is a matter of what everyone assumes you would have wanted.

There is also a raw, early gap that catches families out. In the hours after a sudden death, before any guardian is formally in place, someone has to be legally responsible for the child right now. Where nobody with parental responsibility is available, a council can step in temporarily. A named guardian, known to the family and told in advance, is what shortens that limbo from an ordeal to a phone call. If your child has particular needs that make the choice of carer even more consequential, the same logic runs through our piece on who looks after an autistic child when a parent is gone, where naming the right person and funding them properly matters more than anywhere.

The joint mortgage: your half does not clear the debt

The mortgage is where young couples most often assume they are covered and are not. If you own your home with your partner as joint tenants, your share of the property passes to them automatically when you die, outside your will and without waiting for probate. That sounds like the problem solving itself. It is only half the story, and the dangerous half is the debt.

The mortgage does not shrink because one of you has died. On a joint mortgage both borrowers are liable for the whole balance, so your partner does not inherit "their half" of the loan — they were always on the hook for all of it, and now they carry it alone. We set out that trap in full in why the survivor of a joint mortgage owes the entire balance. Worse, the payment that two incomes comfortably covered is suddenly being met from one, and the lender does not adjust it out of sympathy.

The automatic transfer of the property also fools people into thinking there is nothing to deal with, which is its own quiet danger — the property may pass without probate while the mortgage carries straight on, a mismatch we unpick in no probate needed, but the mortgage still needs paying. And if the arithmetic simply does not work on one income, the questions that follow are the hardest of all: whether the survivor can stay, and what happens to the home your child is growing up in, which is the subject of who ends up owning the house if both parents die.

No will and a young child: the intestacy trap

If you die without a will, the intestacy rules decide who inherits, in a fixed order that pays no attention to your particular family. For a young parent, two features of those rules bite hard.

The first catches unmarried couples, which a great many parents in their twenties are. Under the intestacy rules, a partner you are not married to and not in a civil partnership with inherits nothing — nothing at all — however long you have been together, however many children you share, and whoever's name is on the door. Your estate goes to your children, held in trust, and your surviving partner has no automatic entitlement to any of it. They may end up raising your child while having no claim on the money meant to support them. If that is your situation, a will is not optional housekeeping; it is the only thing standing between your partner and that outcome.

The second catches everyone. Anything your child inherits under intestacy is held for them only until they turn 18, at which point they receive it outright, in full, on their birthday. A will lets you push that age back — to 21, 25, or wherever you judge sensible — and appoint trustees to look after the money in the meantime, releasing it for school, a first car or a deposit as needed. Eighteen is young to hand someone a lump sum shaped by a parent's death. A will is where you get to say so.

The twenty-minute will, and the money to back it

The good news is that the will that matters for a young family is short. Strip away the refinements and it does four jobs. It appoints an executor to deal with your estate. It appoints a guardian for your children. It sets up a simple trust holding whatever the children inherit until an age you choose, with trustees you name. And it says how your estate is divided. Everything beyond that is detail you can add later; those four are the spine.

To be valid in England and Wales, it must be in writing, signed by you, and witnessed by two people who sign in your presence — and crucially, neither witness, nor their spouse, can be someone who benefits under the will, or their gift fails. You can use a solicitor, a regulated will-writer, or a reputable online service for a straightforward estate, and some charities run free will-writing schemes at certain times of year. The government's own guidance on making a will is a sensible, neutral starting point, and free help with the wider picture is available from MoneyHelper. A will is also a living document: it needs a look whenever your family changes, including where a second child arrives after you signed it, and it is worth understanding when a will is genuinely needed even for couples who assume they are the exception, as in whether a married couple with no children needs one.

One limit is worth stating plainly, because it is where a will stops. Naming a guardian does not pay for one, and appointing trustees does not give them anything to hold. A will is the instructions; it is not the money. For a young family with a mortgage on two incomes and a small child to raise for the next two decades, the money usually has to come from cover written for the purpose — enough to clear or carry the mortgage and to fund the years of raising your child that your income would otherwise have paid for. An FCA-authorised broker can size that against your actual mortgage and family, and you can get life insurance quotes to see what it would take. The will and the cover are two halves of the same plan: one decides what happens, the other makes it affordable. Both together are the wider subject of our guide to wills, guardianship and children.

Scotland and Northern Ireland

The core message holds across the United Kingdom: if you are a parent, a will is where you appoint a guardian and take control of what your children inherit. The detail differs. In Scotland, guardianship is dealt with under the Children (Scotland) Act 1995, and Scottish intestacy and succession law is quite different again — prior rights and legal rights share out an estate in their own way, and children have legal rights a will cannot simply remove. Northern Ireland has its own rules on wills, guardianship and intestacy, with figures and procedures that differ from those in England and Wales. If you live in Scotland or Northern Ireland, have your will drawn up by a solicitor qualified there so the guardian clause and the trust work under your own system. The urgency, wherever you are, is the same the moment there is a child.

Frequently asked questions

Do I really need a will at 27 if I have a baby?

A will is the only place you can appoint a guardian for your child, so parenthood matters far more than your age. It also decides who holds money for a toddler until adulthood, and lets you set an age later than 18 for them to receive it. Without one, the intestacy rules and, if relatives disagree, the family court decide both for you.

Does my half of the mortgage pass to my partner automatically?

If you own as joint tenants, your share passes to the survivor outside your will. The debt does not vanish, though. On a joint mortgage each borrower is liable for the whole balance, so the lender still expects the full monthly payment from whoever remains on the loan, and affordability is suddenly being judged on one income rather than two.

What is the minimum a young parent's will should contain?

Four things: an executor, a guardian for your children, a trust holding anything they inherit until an age you choose, and how the estate is divided. Anything else is refinement. It must be signed and witnessed by two people who take no benefit under it, or the gifts to those witnesses fail.