Plot No. 70 · Money & Finance
Life Insurance Needs Calculator
Estimate how much life insurance cover you actually need. It adds up outstanding debts, your mortgage, a set number of years of income for your dependants and future education costs, then subtracts savings and any cover you already hold to leave a single recommended sum assured.
Debts plus mortgage plus income replacement plus education, minus savings and any cover you already hold. Adjust the years figure to match how long dependants would need support.
The link saves your inputs so you can bookmark or share this exact result.
Income replacement by salary and years covered
Income replacement is almost always the largest line in a life insurance needs analysis, and it is pure multiplication: the annual income your household would lose, times the number of years it would need replacing. This table is that sum worked out across the range most people enter, so you can read your figure straight off before adding a mortgage or debts on top. The number of years matters more than people expect, because doubling the window doubles the cover.
| Annual income | 5 years | 10 years | 15 years | 20 years |
|---|---|---|---|---|
| £25,000 | £125,000 | £250,000 | £375,000 | £500,000 |
| £30,000 | £150,000 | £300,000 | £450,000 | £600,000 |
| £35,000 | £175,000 | £350,000 | £525,000 | £700,000 |
| £40,000 | £200,000 | £400,000 | £600,000 | £800,000 |
| £50,000 | £250,000 | £500,000 | £750,000 | £1,000,000 |
| £60,000 | £300,000 | £600,000 | £900,000 | £1,200,000 |
| £70,000 | £350,000 | £700,000 | £1,050,000 | £1,400,000 |
These figures ignore investment growth and inflation. A lump sum invested would last a little longer than the plain multiplication suggests, while rising prices would erode it. The two pull in opposite directions, which is why a flat multiple remains a fair starting point.
Five worked households
Every row below is run through the same calculation as the tool above, so the recommended figure is exactly what you would see by typing those inputs in. The second row is this page's default, which is why the calculator lands on £565,000.
| Household | Mortgage | Income replaced | Total need | Offsets | Cover to buy |
|---|---|---|---|---|---|
| First home, no children | £180,000 | £32,000 x 10 | £503,000 | £8,000 | £495,000 |
| Two young children | £200,000 | £35,000 x 10 | £575,000 | £10,000 | £565,000 |
| Mid-career with employer cover | £150,000 | £45,000 x 15 | £873,000 | £160,000 | £713,000 |
| Mortgage nearly clear, children grown | £25,000 | £40,000 x 5 | £225,000 | £60,000 | £165,000 |
| Single, no dependants | £0 | none | £2,000 | £5,000 | £0 |
- First home, no children: Cover the mortgage and replace a decade of income for a partner.
- Two young children: The default on this page: a mortgage, ten years of income and university costs.
- Mid-career with employer cover: Death in service of three times salary counts as existing cover and cuts the gap.
- Mortgage nearly clear, children grown: A short income-replacement window and real savings shrink the need sharply.
- Single, no dependants: Nobody relies on the income, so savings already clear the debt and the need is nil.
Four ways to work out how much cover you need
There is no single agreed method, and the four in common use can differ by a factor of three for the same household. The table applies each one to this page's default figures: a £35,000 income, a £200,000 mortgage, £20,000 of education costs and £10,000 of savings.
| Method | How it works | Result here |
|---|---|---|
| Income multiple | Ten times annual income, ignoring everything else. Fast, and the usual rule of thumb. | £350,000 |
| Mortgage only | Cover the outstanding home loan and nothing more. Keeps the roof on but replaces no income. | £200,000 |
| DIME needs analysis | Debts, Income, Mortgage and Education added up, then savings and existing cover taken off. The method this calculator uses. | £565,000 |
| Capital needs analysis | A lump sum large enough to throw off the lost income indefinitely without being spent, at a chosen withdrawal rate. | £700,000 at 5%, £875,000 at 4%, £1,166,667 at 3% |
Capital needs analysis, sometimes called the human life value approach, is the most conservative because the capital is never run down. Dividing income by the withdrawal rate is what produces the jump in size: at 3 percent the same salary needs well over a million pounds behind it. DIME sits in the middle because it assumes the lump sum is spent over a defined period rather than preserved forever, which is what most families actually do.
Which policy type pays out the figure you calculated
The number this tool produces is a sum assured, not a product choice. How that sum behaves over the years depends entirely on the type of term you buy, and the wrong type can leave a correct figure paying out far less than you planned.
| Type | What the payout does | Best suited to |
|---|---|---|
| Level term | Stays at the same sum assured for the whole term. | Income replacement, education costs, interest-only mortgages. |
| Decreasing term | Falls over the term, roughly tracking a repayment mortgage balance. | The mortgage line of your calculation, on a repayment loan. |
| Annual renewable term | A one-year policy you renew each year without new medical evidence, with the premium stepping up as you age. | Short, uncertain gaps in cover rather than a twenty-year need. |
| Family income benefit | Pays a regular monthly income for the rest of the term instead of one lump sum. | Households who want the income line paid as income. |
| Whole of life | Pays whenever you die rather than only within a fixed term. | Estate planning and funeral costs, not temporary needs. |
What this calculator does not account for
- Inheritance tax on the payout. A life insurance payout is not normally subject to income tax or capital gains tax, but it does form part of your estate for inheritance tax unless the policy is written in trust. Writing it in trust is usually free at the point of application and also gets the money to your family without waiting for probate.
- Employer death in service. Many UK employers provide cover of two to four times salary automatically. It counts as existing cover in the field above, so check your benefits statement before buying: on the mid-career row in the table, three times salary cuts the gap by £135,000. It normally ends when the job does, so do not rely on it for a twenty-year need.
- State support and pensions. Bereavement Support Payment and any death benefit from a workplace pension can reduce the shortfall, and neither is visible to this tool.
- The cost of the cover. This works out how much cover you need, not what it would cost. Premiums depend on your age, health, smoking status and the term length, so two people buying an identical sum assured can pay very different amounts.
- Joint policies. A joint life first death policy pays out once and then ends. Two single policies cost more but pay twice, which matters when both incomes are being replaced.
Frequently asked questions
What method does this calculator use?
It uses a DIME-style approach: Debts, Income replacement, Mortgage and Education. It adds your non-mortgage debts, your mortgage balance, a chosen number of years of income and future education costs, then subtracts savings and existing cover to leave the extra cover to buy.
How many years of income should I replace?
Ten years is a common starting point for dependants who will eventually become financially independent, such as children reaching adulthood. Choose more if a partner would rely on the income for longer, or fewer if other income sources would cover part of the gap.
Does this replace advice from a financial adviser?
No. This gives a starting estimate based on the numbers you enter, not a recommendation. A qualified adviser can factor in your pension, state benefits, employer death-in-service cover and health, which this calculator does not see.
How do I calculate life insurance needs with a mortgage and children?
Enter the mortgage balance in full, because a repayment mortgage is the single largest debt most households leave behind. Then set the years of income to replace so that it reaches the point your youngest child becomes financially independent, which for a newborn is closer to twenty years than ten. Add expected university or school costs in the education field. On the default figures, a 200,000 mortgage, 35,000 of income for ten years, 20,000 of education costs and 5,000 of other debts gives a total need of 575,000, and 10,000 of savings brings the recommended cover to 565,000.
What is the difference between a needs analysis and the ten times income rule?
The ten times income rule multiplies your salary and stops there, so on a 35,000 income it returns 350,000 regardless of your mortgage or family. A needs analysis like this one adds the specific liabilities your household would actually face and subtracts what it already has, which on the same income gives 565,000 once a 200,000 mortgage and education costs are counted. The rule of thumb is faster; the needs analysis is the one that reflects your balance sheet.
Should the cover match my mortgage term?
The mortgage portion should, and that is what decreasing term assurance is designed for: the sum assured falls roughly in step with a repayment mortgage balance, so the policy ends when the debt does. The income replacement and education portions usually need level term cover instead, because those amounts do not shrink as the years pass. Many households hold both, sized separately, rather than one policy covering everything.
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