Costing a Childhood You Would Not Be There For

The honest answer to how much life insurance you need for your child is not a round number you can copy from an advert. It is the size of the gap your income fills, measured against the years your child still depends on you. Two families with the same salary can need very different amounts, because one has a toddler and a big mortgage and the other has a teenager and almost no debt. So the useful question is not what it costs to raise a child in the abstract, but what your household would actually be short of each month if you were not here to earn.

Published averages for the cost of raising a child exist, and they are large enough to frighten anyone. But an average is the wrong tool for this job. It bundles together families in circumstances nothing like yours, and it produces a single lump sum that feels authoritative and is almost certainly wrong for you. Worse, a lump sum is the hardest shape of money for a grieving partner to handle well. This page shows a better method: turn the years of dependency into a monthly figure, work out how many of those years remain, and only then decide what shape the cover should take.

None of this requires a spreadsheet you dread opening. It requires one date and a short list of what your income currently pays for.

The short answer: size the gap, not the child

Life cover for a parent is not really insuring the child. It is replacing the money you would have brought in while that child grew up. That reframing does most of the work, because it turns a vague, upsetting question into an arithmetic one you can actually answer.

Start from what your income currently pays for and ask what would still have to be paid if it stopped. The mortgage or rent would still be due. The children would still need feeding, clothing and getting to school. Childcare that you or your partner currently provide for free might have to be bought in, which is often the single largest hidden cost, because a surviving partner who has to keep working suddenly has to pay someone to do what two parents used to share. Add the ordinary running of a household, and you have the monthly figure the cover exists to protect.

What you are deliberately not doing is reaching for a headline number. A national average for the cost of a childhood is a real figure, but it answers a different question and it invites you to insure a stranger's life rather than your own. Your gap is smaller or larger than the average, and it is the only figure that matters.

Start with a date, not a sum

The reason a child's dependency is easier to insure than most risks is that it ends on a date you can more or less see. A mortgage runs to a known year. A newborn is roughly eighteen years from independence, a ten-year-old about eight, and a child heading to university perhaps to their early twenties. Fix that end date first, because it decides how long the money has to last, and the length of time matters more than a few thousand pounds either way on the amount.

Choosing the date is a judgement about your own family. Some parents size cover to the end of school; others to the end of a first degree; a few, out of caution, to the point a child could realistically support themselves. There is no single correct answer, only the one that fits how your family works. The point is to choose deliberately rather than let an insurer's default term choose for you.

For most children that date genuinely arrives and the cover can safely end with it. For some it never comes. A child with a lifelong disability may depend on you for as long as you live and beyond, and term cover that expires at 65 is exactly the wrong instrument, because the need outlasts the policy. That situation needs its own approach, which we set out in the guide to a diagnosis at three and cover that has to outlive you. For every other child, the ending is the feature that keeps the cover honest and affordable.

Building the monthly figure

With the end date fixed, build the monthly gap from the parts you can see. Take the income your household would lose. Add the childcare you would have to pay for that is currently done by a parent. Keep in the ongoing costs that do not disappear because one earner has gone: the mortgage or rent, the utilities, the food, the school trips and shoes and everything else a family quietly spends. That total, month by month, until your end date, is the shape of what your family would need.

This is what most online life insurance calculators are trying to approximate when they ask about your income, mortgage and children. Treated as a prompt rather than an oracle, a calculator is useful; treated as a verdict, it can push you toward a single large sum that suits the arithmetic more than the family. The manual version above is slower but it produces a figure you understand and can defend, which is worth far more than a precise-looking number you cannot explain.

One caution on the mortgage. If you already have a policy set up to clear the mortgage on death, do not double-count it here. Cover for the family's living costs and cover for the loan are two different jobs, and it is common to hold one and assume it does the other. Check what your existing policies are actually written to pay before you decide what new cover, if any, the monthly gap needs.

Family income benefit versus a lump sum

Here is where the shape of the cover matters as much as the amount. A lump sum pays one large payment on death. Family income benefit instead pays a regular, usually monthly, amount for the rest of the policy term. Both can be right, but they ask very different things of the person left behind.

A single lump sum sounds like the safer, bigger thing, and for clearing a debt it is. But handed to someone in the first weeks of grief, a large sum is a burden as much as a relief. It has to be kept somewhere, protected from being spent too fast or, just as damaging, left untouched out of fear while the bills still come. Managing a big pot of money well is a skill, and it is a cruel time to have to learn it.

Family income benefit sidesteps that. It replaces a salary with something that behaves like a salary: a payment that arrives every month, on time, for a set number of years, that a household can simply live on without having to make investment decisions in the worst year of their life. Because the total paid out falls as the term runs down, family income benefit usually costs less for the same overall protection than an equivalent lump sum. Many parents use both, a smaller lump sum to clear debts and cover one-off costs, with a monthly income underneath it to run the household.

Subtract what already exists

Before you insure the whole gap, subtract what would already arrive. Insuring money you do not need is simply paying for cover you will never use.

The commonest existing provision is an employer's death in service benefit, often a lump sum of a few times salary, paid if you die while employed. It is genuinely valuable, but rely on it carefully. It is a benefit of the job, not a personal policy, so it disappears the day the employment does, a point we set out in the guide to how death in service ends the day you retire. And where a relationship has broken down, the money is usually paid at the discretion of the scheme trustees rather than automatically to the person you would expect, which we cover in the piece on a death in service benefit after a divorce. Count it in, but do not build the whole plan on a benefit that can move or vanish.

Then subtract savings, any existing life cover, and any survivor's pension a partner would receive. What is left after all of that is the real gap, and it is almost always smaller than the frightening number you started with. Sizing cover to the gap rather than to a round figure is what keeps the plan proportionate.

How likely is this, and pricing it properly

It is reasonable to ask whether this is a risk worth insuring at all. The death of a working-age parent in any single year is uncommon, and it should be said plainly that most parents reading this will see their children grow up. But across a whole population and across the eighteen or so years of a childhood, it is far from unknown, and every year a number of children in England and Wales lose a parent who was still earning. The Office for National Statistics publishes the standard reference for deaths by age, which is the sober place to look rather than a headline.

Source: Office for National Statistics, Deaths registered in England and Wales (Series DR), 2024, Table 4, published under the Open Government Licence v3.0.

When you come to arrange cover, the single most important thing is to answer the medical questions on the application fully and honestly. Underwriting is the process an insurer uses to decide the terms, and it depends entirely on what you disclose. Leaving something out to keep things simple is the one move that can cause a claim to be refused later, when your family can least withstand it. That applies to the awkward things people would rather not mention, such as declaring recreational drug use, and to medical findings that sound worse than they are, such as why an echo showing HCM is not a genetic test. Tell the insurer everything and let them price it. When you are ready to see figures against your own circumstances, you can get life insurance quotes and have an FCA-authorised broker match the amount and the term to your family rather than to a template.

A note on Scotland, and money meant for a child

The method above is the same wherever in the UK you live, because it is arithmetic about your own household rather than a point of law. What differs is what happens to money that ends up meant for a child directly, and this is worth a moment.

Cover intended to support children is usually best written in trust or paid to the surviving parent to manage, rather than left to a young child outright, because a child cannot manage a large sum and the age at which they gain control varies. In Scotland a young person can hold and control property from age sixteen, earlier than the eighteen that applies in England and Wales, which affects when money would pass into their own hands if it is not held in trust for longer. Scotland also gives children protected legal rights over a parent's estate that do not depend on a will. These are reasons to have the money held and released on terms you set, not reasons to insure a different amount. Get the gap right first; then make sure the payout lands somewhere sensible.

Frequently asked questions

How much life cover does a parent actually need?

Work from the gap, not from a round number. Add the income your household would lose, the years until your youngest child is independent, the childcare you would have to buy in, and any mortgage or debts, then subtract savings and employer death benefits. What remains is the amount to insure, and it is usually smaller than a national average would suggest.

Is it better to leave a lump sum or a monthly income?

Both can work. A lump sum clears debts immediately, while family income benefit pays a regular amount for the rest of the policy term, which is easier to budget with and usually costs less for the same total. Many parents combine a smaller lump sum to settle debts with a monthly income to run the household.

When does a child stop being financially dependent?

There is no fixed point. Many parents size cover to the end of school, others to the end of a degree, and a child with a lifelong disability never reaches independence at all. Choosing that end date matters more than getting the exact amount right, because it sets how long the money has to last.