Start with your debts and dependents, not a rule of thumb

The amount of life insurance you need depends on what your family would owe and what they would lose if you died — not on a multiple of your salary or a number someone else suggests. A common shortcut is "10 times your income," but that misses the point. A single person with no dependents needs almost nothing. A parent with a mortgage, young children, and a spouse who doesn't work needs far more than 10 times their salary.

The real calculation starts with three numbers: what your family owes right now, what they would need to replace your income, and what they would need for one-time costs like funeral expenses and estate taxes. Once you know those, you can pick a coverage amount that makes sense for your actual situation.

Key Takeaways

  • Add up your mortgage balance, car loans, credit card debt, and any other money your family would inherit as obligations, not assets.
  • Estimate how many years your spouse or dependents would need income replacement and multiply by what they would need each year.
  • Include funeral costs (typically $7,000 to $12,000), final medical bills, and probate fees in your total.
  • Subtract what your family already has in savings, investments, and Social Security survivor benefits to find the gap life insurance should cover.
  • A term life insurance calculator can walk you through these steps, but the math itself is straightforward enough to do on paper.

List your debts as the floor

Start by writing down every debt your name is on: the mortgage balance (not the original loan amount), car loans, student loans, credit cards, medical debt, and any personal loans. This is the minimum your life insurance should cover, because these debts don't disappear when you die — they come out of your estate or fall to a co-signer.

If your spouse is a co-signer on a mortgage or car loan, that debt is their problem whether you have insurance or not. But if you are the only one responsible, life insurance should pay it off so your family doesn't inherit the payment. Add these numbers together. This is your floor.

Calculate income replacement for dependents

If you have a spouse, children, or anyone else who depends on your paycheck, life insurance should replace that income for some period of time. The length depends on your family's situation: a spouse might need replacement income until they reach retirement age or until the youngest child finishes school. Young children might need support until age 18 or 22.

Multiply the annual income your family would need by the number of years they would need it. If your household income is $80,000 and your spouse would need 20 years of replacement income, that is $1.6 million. This is usually the largest part of the calculation. Be realistic about what your family would actually spend — not what you spend now, but what they would need to cover housing, food, childcare, and school.

If your spouse works, you can reduce this number by their income. If your family would receive Social Security survivor benefits (which they would, for children and a surviving spouse), subtract that too. Social Security pays a percentage of your benefit to each child under 19 and to a spouse caring for children under 16, so the total can be substantial — check your Social Security statement or use the calculator at ssa.gov to estimate it.

Add one-time costs

When someone dies, there are immediate bills: funeral costs typically run $7,000 to $12,000, depending on location and choices. There may be final medical bills, probate fees (usually 3 to 7 percent of the estate), and estate taxes if your total assets are large enough. There may also be costs to settle the estate, like hiring a lawyer or accountant.

Add a buffer for these — $15,000 to $25,000 is reasonable for most families. If your estate is large or complicated, talk to an estate attorney about what to expect.

Subtract what your family already has

Now subtract the resources your family would actually have. This includes savings and investment accounts in your name, retirement accounts with a named beneficiary (which pass directly to that person and don't go through probate), and any existing life insurance through your employer. It also includes the lump-sum death benefit from Social Security, which is a one-time payment of $255 to a surviving spouse or child.

The number left over is what term life insurance should cover. This is your target coverage amount.

Example: A parent with a mortgage

Say you are 35, married with two children, and you earn $75,000 a year. Your mortgage balance is $280,000, you have a car loan of $15,000, and credit card debt of $8,000. Your spouse doesn't work outside the home. You have $20,000 in savings.

Your debts total $303,000. Your family would need your income replaced for about 18 years (until the youngest child is 18 and your spouse could work full-time). At $75,000 a year, that is $1.35 million. Subtract your spouse's expected Social Security survivor benefit of roughly $2,000 per month ($24,000 per year), which reduces the need to about $1.08 million. Add $20,000 for one-time costs. That is $1.1 million total. Subtract your $20,000 in savings. Your target coverage is roughly $1.08 million.

In practice, you might buy $1 million in term life insurance, which is a standard amount and usually costs less than $50 per month for a healthy 35-year-old. This covers your debts, replaces most of your income for the years your family needs it, and leaves a small cushion.

Why calculators can help, but the math is simple

Many life insurance companies offer free calculators that walk you through these steps. They are useful because they organize the questions and do the arithmetic, but they are not magic. You are providing the numbers; the calculator just adds and subtracts. If you prefer to do it on paper or a spreadsheet, the result will be the same.

The real work is thinking honestly about what your family would need. Overestimating is not dangerous — you just pay for more insurance than necessary. Underestimating is the real risk, because it leaves your family short. If you are unsure, err on the side of more coverage rather than less.

Frequently Asked Questions

Should I use the 10-times-income rule?

The 10-times-income rule is a starting point, not a target. It works reasonably well for someone with average debts and dependents, but it misses the specifics of your situation. A person with no dependents needs far less; a parent with a large mortgage needs more. Do the actual calculation instead.

What if I have no dependents?

You need enough to cover your debts and funeral costs — typically $10,000 to $50,000. If you have no one depending on your income, you do not need to replace it. A small term policy is usually enough to keep your family from inheriting your bills.

Do I need to update my coverage amount over time?

Yes. As you pay down your mortgage, your children grow up, and your savings increase, you need less insurance. Review your coverage every few years or after a major life change — a new child, a job loss, a large inheritance, or a significant debt payoff.

What if my spouse also works?

Calculate the income replacement for both of you separately, then add them together. If your spouse earns $50,000 and you earn $75,000, your family might need both incomes replaced for some period. You would each want coverage that protects the other in case one of you dies.

Should I buy more coverage than I calculated?

A small cushion above your calculated need is reasonable — maybe 10 to 20 percent more — to account for inflation and unexpected costs. Buying significantly more than you need just means paying for insurance you will not use.