How much life insurance you need is a math problem, not a guess. Add the debts your family would inherit, the income they would lose, the mortgage balance and any education costs, then subtract what you already have. The DIME method does exactly that, and it routinely produces a real number far above what income multiples suggest.
Nearly everyone lands on a round number they heard somewhere. Half a million sounds responsible. A million sounds like a lot. Neither is an answer, because the right amount of life insurance has nothing to do with what sounds reasonable and everything to do with what your family would actually have to pay for if your income stopped tomorrow.
There are three accepted ways to size coverage, and they disagree with each other on purpose. This guide walks each one, shows where they diverge, and gives you a number you can defend. If you have not yet decided which product to buy, our guide to what type of life insurance you need covers that decision separately, because amount and type are two different questions.
What Is the DIME Method?
The short answer: DIME adds your debts, income replacement, mortgage balance and education costs, then subtracts existing coverage and savings.
It is the method most financial planners reach for because it is tied to obligations rather than to a multiple. The four letters stand for Debt, Income, Mortgage and Education, and the arithmetic is deliberately boring: total each category, add them, subtract what you already have in place.
| Component | What to include | Illustrative figure |
|---|---|---|
| Debt | Credit cards, car loans, student loans, plus final expenses | $40,000 |
| Income | Annual income multiplied by the years your family would need support | $80,000 × 10 = $800,000 |
| Mortgage | Current payoff balance on your home | $300,000 |
| Education | Estimated college or school costs per child | $100,000 |
| Subtract | Existing life insurance, group coverage and liquid savings | $150,000 |
| Coverage need | The DIME total | $1,090,000 |
The Insurance Information Institute suggests including at least $15,000 for final expenses in the debt category, which is a line most people forget entirely. The number that comes out of this exercise is usually larger than expected, and that is the point: it reflects what the household actually owes and relies on.
Is Ten Times Income Enough?
The short answer: It is a reasonable first estimate and a poor final answer, because it ignores your mortgage, your debts and what you already own.
The rule exists because it is fast. Multiply gross annual income by ten to fifteen and you have a ballpark in five seconds, which is genuinely useful as a sanity check against a more detailed calculation. Use ten as a floor, twelve as a starting point for families, and fifteen if you are the sole earner with young children.
Where it breaks down is households carrying a large mortgage. MoneyGeek's analysis found that for families with a mortgage above $300,000 and two or more children, the rule of thumb underestimated the coverage need by 35 to 60 percent compared with a needs-based calculation. If you use a multiple, treat it as the lowest number you would consider rather than the target.
According to LIMRA and the Insurance Information Institute's industry research, the average American policy provides roughly $170,000 of coverage, and only about half of adults own any life insurance at all. Against a DIME calculation for a typical family with a mortgage, $170,000 is not a policy, it is a rounding error. Size to your obligations, not to what the average buyer happened to purchase.
How Many Years of Income Should You Replace?
The short answer: Cover the years your family would genuinely depend on your earnings, which usually means until the youngest child is independent or the mortgage is gone.
Ten years is the common default, and for many households it is defensible. But the honest way to choose is to ask when the dependence ends. A parent of a two-year-old is looking at roughly twenty years of dependence. A couple five years from retirement with a paid-off house may need two or three years of transition money and nothing more.
Young children at home
Count the years until your youngest is financially independent, then add a few for a surviving spouse to rebuild earnings. Often 18 to 25 years.
Mortgage as the main exposure
Match the replacement period to the remaining loan term so the house is never at risk mid-term.
Dual-income household
You are replacing a share of income rather than all of it, but do not forget childcare costs that a surviving spouse would suddenly have to pay for.
Stay-at-home parent
The lost income is zero and the replacement cost is not. Childcare, transport and household management are real expenses to insure against.
Nearing retirement
Coverage often shrinks to debts, final expenses and any pension or survivor-benefit gap.
Lifelong dependent
This need never ends, which points toward permanent coverage rather than a longer term.
What Should You Subtract From the Total?
The short answer: Subtract liquid savings and any coverage that will still exist when your family needs it, which is a narrower list than most people assume.
Existing individual policies count in full. Liquid savings count. Retirement accounts count partially, since they are earmarked for a surviving spouse's retirement and spending them early creates a second problem. Home equity generally does not count, because selling the house is the outcome you bought the insurance to prevent.
Employer group coverage is the line to be careful with. It is usually capped near one or two times salary, it typically ends when the job does, and it often becomes unaffordable or unavailable exactly when health problems make private coverage hard to get. Count it as a bonus layer rather than a foundation, and own enough individual coverage to stand on its own.
What If the Right Number Is More Than You Can Afford?
The short answer: Buy the correct amount of term rather than a smaller amount of permanent coverage, because being underinsured is the more expensive mistake.
This is the most common real-world constraint, and it has a straightforward answer. Term life buys the most death benefit per dollar, which is exactly why it dominates for families sizing coverage to obligations. Carrier-published rate materials from Guardian in 2025 put a $500,000, 20-year term policy for a healthy nonsmoking 30-year-old male at roughly $28 a month, and about $34.50 at age 40.
If the full number still does not fit, two structures help. Laddering means buying a longer policy for the mortgage and a shorter one covering the childrearing years, which costs less than one large long policy. Staging means buying what you can afford now and adding coverage later, though every year you wait raises the price, so sooner is cheaper. Our term life page covers both, and our term versus whole life comparison explains why term stretches a budget further.
A 34-year-old earning $80,000 with a $300,000 mortgage, two children under six and $40,000 in other debt runs DIME and gets roughly $1.2 million. That sounds unreachable until it is priced: a large term policy at that age and health can be a manageable monthly figure, while the same budget spent on permanent coverage might buy $150,000 of protection and leave the family a million short during the exact decade they are most exposed. Figures are illustrative; actual premiums depend on underwriting.
When Should You Recalculate Your Coverage?
The short answer: Recalculate after any event that changes your obligations, and at minimum every three to five years.
A new child, a new mortgage, a refinance, a marriage, a divorce, a significant raise or a business loan all move the number. So does paying off debt, which occasionally means you are carrying more coverage than you need and can redirect the premium.
One planning note that saves money: if your health has improved since you bought, particularly if you quit using tobacco, re-shopping can lower your rate meaningfully. Keep the existing policy in force until any replacement is issued, and read our no-exam life insurance guide if you want to know what the application will actually involve.
The Bottom Line
Run DIME, then check it against ten to fifteen times income. If the two disagree, trust DIME, because it is tied to what your family would actually owe. Subtract only the coverage and savings that will genuinely be there, and treat employer group coverage as a bonus rather than a foundation.
Then price the number before you talk yourself out of it. The gap between what families need and what they own is enormous, and it is usually a pricing assumption rather than a budget reality. We will run your number and show you what it costs across 50+ carriers at no charge. Start below, use our quote page, or call and we will do the math with you.