How Much Life Insurance Do I Need, and for How Long?
Quick answer
The amount of life insurance you need is the gap between what your family would need if you died and what they would already have. Add up the mortgage, the years of living costs you'd want to cover, education and final expenses, then subtract savings, any workplace cover and benefits your family would receive. A parent earning $68,000 with two young children and a $310,000 mortgage might need about $1,000,000 today. That need shrinks as the mortgage falls and the children grow, so several smaller term policies of different lengths can match it more closely than one large policy.
Life insurance is one of those things most people know they should sort out and then put off, partly because it's an uncomfortable thing to think about and partly because the question "how much?" seems impossible to answer. Quick rules like "ten times your salary" exist because the real question feels so open-ended.
It's more answerable than it looks. State insurance regulators describe the same simple method: work out what your family would need, subtract what they would already have, and insure the difference. This guide walks through that method for one family, and then looks at something the quick rules miss entirely, which is that the answer changes as the years go by.
Start with what your family would need
Meet Jo, who is 35, earns $68,000 and is the family's main earner. Jo's partner Sam looks after their two children, aged 2 and 5. They have a $310,000 mortgage and about $40,000 in savings.
If Jo died tomorrow, here is roughly what the family would need. These are Jo and Sam's own estimates, not rules, and yours will be different.
| Need | Amount |
|---|---|
| Pay off the mortgage | $310,000 |
| Living costs of $45,000 a year until the youngest turns 18 (16 years) | $720,000 |
| Help towards the children's education | $60,000 |
| Funeral and final expenses | $15,000 |
| Total | $1,105,000 |
Living costs are shown as a simple total. Invested money earns a return but also loses value to inflation; treating the two as roughly cancelling out keeps the estimate easy to follow.
Then count what they would already have
The second half of the sum is just as important, and it's the part people tend to skip. Jo and Sam have $40,000 in savings, and Jo's job comes with group life cover of one year's salary, $68,000. Taking those away leaves a gap of about $997,000, so around $1,000,000 of cover.
There is also help from Social Security. If a parent dies, each child can receive a monthly benefit until 18, worth up to three-quarters of the parent's full benefit, with a family maximum on the total. That money would cover part of the $45,000 a year of living costs, so many families can reasonably buy a little less than the raw gap. Jo's estimate of their own benefit is on their Social Security statement.
One caution about the workplace cover. It's usually limited, and it often ends when you leave the job. Counting it is fair, but it's worth knowing that part of your protection depends on staying where you are.
The need gets smaller every year
Here's what a single "how much" figure misses. Every year Jo pays down the mortgage, the children get closer to supporting themselves, and the savings, hopefully, grow. In ten years the gap might be nearer $600,000. In twenty, with the mortgage almost gone and the children grown up, perhaps $200,000.
One way to follow that falling need is to buy more than one term policy, each lasting a different length of time. This is sometimes called laddering, and the table below shows how it might look for Jo.
Because you aren't paying to insure $1,000,000 for thirty years, a ladder like this usually costs less than one large policy of the longest length. Prices depend on your age, health and the insurer, so it's worth asking for quotes both ways.
| Policy | Years 1–10 | Years 11–20 | Years 21–30 |
|---|---|---|---|
| $400,000, 10-year term | $400,000 | — | — |
| $400,000, 20-year term | $400,000 | $400,000 | — |
| $200,000, 30-year term | $200,000 | $200,000 | $200,000 |
| Total cover | $1,000,000 | $600,000 | $200,000 |
An example ladder for Jo. Each policy simply ends at the close of its term.
The parent who stays at home needs cover too
It's easy to assume only the person with the salary needs insuring. But if Sam died, Jo would suddenly need to pay for the care and running of the household that Sam provides. If childcare and help at home cost around $22,000 a year until the youngest is 14, that's $264,000 over twelve years.
The figure is entirely an assumption here, and childcare costs vary a great deal by area. The point is that the number isn't zero, and a modest policy on the parent at home is something many families simply never consider.
A few gentle rules of thumb
- Buy only as much as you can comfortably keep paying for. A policy that lapses because the premiums became a strain protects no one.
- Look at your cover again after big changes: a new baby, a new home, a new job, or paying off a large debt.
- Don't rely on workplace cover alone if your family depends on your income. It often stops when your job does.
- If you'd like to check the numbers another way, the Life Insurance Calculator works out a figure from your income, debts and children's education costs.
Frequently Asked Questions
Is ten times my salary enough life insurance?
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It can be a reasonable starting point, but it ignores your mortgage, savings, workplace cover and the age of your children. Working out what your family would need and subtracting what they would already have gives a more personal answer.
Does a stay-at-home parent need life insurance?
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Often, yes. If they died, the family would need to pay for the childcare and household help they currently provide, which can add up to a significant amount over the years until the children are older.
Should I count my workplace life insurance?
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You can, but it is usually limited and often ends when you leave the job. If your family depends on your income, it is worth having cover that does not rely on staying with your employer.
What is laddering life insurance?
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Buying several term policies of different lengths, so your total cover falls over time in step with your family's needs, rather than paying for one large policy for the whole period.
Sources
- Vermont Department of Financial Regulation — Consumer Guide: Purchasing Life Insurance — A state regulator's method for sizing cover: estimate your dependents' needs, list the income and assets they would have (including savings, Social Security benefits and group insurance), and insure the difference. Also notes that group cover is often limited and may end when you leave your employer, that you should buy only what you can afford, and that needs change over time.
- California Department of Insurance — Life Insurance and Annuities Consumer Guide — Sets out the same steps: decide how much cover you need, decide what you can afford, then choose the type of policy, and warns against both under- and over-insuring.
- 20 CFR § 404.353 — Child's benefit amounts (eCFR) — A child's Social Security benefit is three-quarters of the deceased parent's primary insurance amount, subject to the family maximum.