How Much Life Insurance Do I Need? The Arithmetic, Not the Rule of Thumb

Almost every answer to this question is a multiple. Ten times your income. Twelve if you have young children. Seven if you are close to retirement.

Multiples are not wrong, exactly. They are an average of a calculation somebody else did for a household that is not yours. They are a starting guess dressed up as a conclusion, and they are the reason a lot of people carry a number they cannot explain.

The better question is not how much. It is what is this money supposed to do? Once that is written down, the amount falls out of it.

The arithmetic

There are four things the money typically has to accomplish, and one subtraction.

1. Replace the income, for as long as it is needed

Not forever. For the number of years your household would actually depend on it. If the youngest child is eight, the honest horizon is at least ten years, and probably more if college is part of the plan. If your spouse earns well and would keep working, the figure is smaller. If your spouse would realistically cut back for a year or more — which is what usually happens — the figure is larger than the salary gap alone suggests.

Take the income your household would lose and multiply it by the years it would be missed. That is the largest number in the calculation and the one people most often shorten.

2. Clear the mortgage

The remaining balance, not the original loan. This is the number that decides whether your family stays in the house or has to make a decision about the house during the worst year of their lives. It is also the easiest number in the whole exercise to look up, and the one most people can recite.

3. Clear the other debt

Car loans, credit cards, any personal loan someone else co-signed. Anything that does not quietly disappear and that somebody would inherit the payment on.

4. Get the children to adulthood

Add up the years each child has left at home and cost them out. Two children aged ten and fourteen are twelve child-years between them. What that costs per year is a real decision and it varies enormously by household — but zero is not the right entry, and neither is a number so large it prices the policy out of reach.

Then subtract what is already in force

Any individual policy you own. Any group coverage through work. And this is where most calculations quietly go wrong, because the work coverage is counted at full value when it should be counted with an asterisk.

The part that surprises people

Employer group life is typically one to two times salary, and large employers frequently cap the company-paid amount at a flat figure regardless of what you earn. It requires no underwriting, your employer often pays for it, and it is worth having.

It also ends when the job ends.

Not at retirement. Not eventually. On your last day, usually with about a month to convert it into something you own — a window most people find out about after it has closed. So the honest way to read your coverage is twice: what is my gap today, and what is my gap the morning after I change jobs. For a household whose only coverage is a $50,000 group policy, those two numbers are almost identical, because the coverage was never theirs.

We built a calculator that does both at once. It takes about ninety seconds and it asks for no email address: is my work coverage enough? If you are actually leaving a job, this page explains the conversion window before it closes on you.

What the research says about the gap

LIMRA and Life Happens run an annual study of how Americans actually think about this. Their 2026 Insurance Barometer found that 52% of U.S. adults own life insurance, while 98 million Americans are uninsured or underinsured — 29% who say they need coverage and do not have it, plus another 9% who have some and know it is not enough.

The reasons people give are worth reading, because only one of them is about money and even that one is usually a misunderstanding. About 70% of Americans overestimate what life insurance costs, and among consumers aged 30 and under, only 21% priced a basic policy correctly. LIMRA puts the median annual cost for a healthy adult under 31 at roughly $192 a year.

The other reasons are more human: other financial priorities, not being sure what they need, not having gotten around to it, and not wanting to think about dying. 37% say they are only somewhat or not at all knowledgeable about how any of it works.

That last figure is the real problem. Not cost. Not apathy. People do not buy a thing they do not understand, and the industry has not made it easy to understand.

Where the arithmetic stops and judgment starts

The calculation above gives you a number. It does not tell you whether to buy all of it, and honest advice sometimes says not to.

Coverage that lapses protects nobody. A policy sized to a spreadsheet and priced beyond what the household can comfortably pay in year three is worse than a smaller policy that stays in force, because the family ends up with neither the money nor the premium. If the full number is not affordable, the right move is usually to cover the most catastrophic part of the job now — typically the mortgage and the years the children are still at home — and revisit it when income allows, rather than buying nothing because the ideal figure looked impossible.

It also matters which tool does the job. A thirty-year need and a permanent need are different problems, and using one product for both is how people end up overpaying for coverage they will outlive or underinsured on the part that never expires.

Four questions, then a number

This is the order every conversation here runs in, and it is deliberately the reverse of how most of the industry does it:

1. Why are we talking? What changed, or what worried you enough to look this up.
2. Why does it matter? Who is depending on this, and what happens to them if nothing is in place.
3. What should the policy accomplish? Every policy has one job. Name the job before naming a product.
4. What fits comfortably? A premium still payable in ten years.

Then one recommendation, not five options dropped in your lap.

If you want to run your own numbers first, the gap calculator is free and asks nothing of you. If you would rather have someone do it with you, twenty minutes on the calendar gets it done properly.