The DIME Method: Estimating Your Life Insurance Coverage in Four Parts

Once a family decides to buy life insurance, the first question they usually get stuck on is how much coverage they need. The coverage amount (the death benefit) is what the insurance company pays the beneficiaries when the insured person dies. Buy too little and the family is left with a gap; buy too much and the extra premium crowds out other savings. The DIME method is a common starting point: it breaks the coverage need into four amounts you can calculate directly.

What Is the DIME Method

DIME takes the first letter of four words that together describe the expenses a family would need to cover if its main earner died:

• D (Debt)
• I (Income replacement)
• M (Mortgage)
• E (Education)

Adding the four together gives a rough estimate of the coverage you need.

The DIME Method in Detail

D (Debt)

Start by listing every outstanding debt other than the mortgage, including credit card balances, personal loans and auto loans. Some versions of the method also include funeral and final expenses here. If there is no insurance to pay these off, they fall on the family.

I (Income Replacement)

This part asks how many years your family would still need your income if you were gone. The usual approach is to multiply your annual income by the number of years to be covered. Many people use 5 to 10 years, and families with young children sometimes count until the youngest child reaches adulthood. That time gives the family room to adjust its lifestyle and rearrange its sources of income.

M (Mortgage)

If you still have a mortgage, include the current outstanding balance. That way your family can choose to pay off the mortgage and will not lose their home because they cannot keep up with the payments.

E (Education)

If you have children, estimate what college or other education will cost and include it in the coverage amount, so their education plans are not interrupted by the loss of an income.

How to Run the DIME Calculation

1. Add up all debts other than the mortgage.
2. Multiply your annual income by the number of years to be covered (for example, 5 to 10 years) to get the income replacement amount.
3. Add the outstanding mortgage balance.
4. Estimate total education costs for all of your children.
5. Add the four parts together to get a first-pass coverage number.

Examples

Both examples below are hypothetical, with rounded numbers, and are only meant to show how the calculation works.

Example 1: A young couple who just bought a home, no children yet

A young couple has just bought their first home and plans to have children in a few years. We run the numbers for the household’s main earner:

• Debt: $10,000 credit card plus $30,000 auto loan, $40,000 total
• Income replacement: $150,000 a year for 8 years, $1,200,000
• Mortgage balance: $800,000
• Education: no children yet, so nothing for now

DIME estimate: $40,000 + $1,200,000 + $800,000 = $2,040,000.

Example 2: A family with two children

Mr. Zhao and his wife have two children, and their main concern is the children’s education costs. We run the numbers for Mr. Zhao:

• Debt: $30,000 auto loan plus $10,000 credit card, $40,000 total
• Income replacement: $200,000 a year for 8 years, $1,600,000
• Mortgage balance: $600,000
• Education: an estimated $200,000 per child, $400,000 for two

DIME estimate: $40,000 + $1,600,000 + $600,000 + $400,000 = $2,640,000.

Things to Keep in Mind

What DIME produces is a gross need, meaning the number before subtracting resources the family already has. The following points can push the result up or down.

• Existing coverage and assets. DIME does not subtract insurance or savings you already have. Suppose Mr. Zhao’s group life insurance through work (coverage an employer buys for its employees, typically one to two times salary) would pay $400,000, and the family has $300,000 in savings and investments it could draw on. The actual gap is then about $2,640,000 − $400,000 − $300,000 = $1,940,000. Group coverage generally stays with the job and may end if you leave.
• Social Security survivor benefits. If the spouse who dies paid into Social Security in the U.S. long enough, children under 18 and a surviving spouse caring for a child under 16 can receive monthly survivor benefits based on that person’s earnings record. This income reduces the income replacement need, and you can see an estimate in your my Social Security account; families where the earner has not paid in long enough should not count on it.
• Inflation and investment returns. Multiplying income by years ignores inflation and also ignores that the death benefit can be invested. The two partly offset each other, but education costs usually rise faster than general inflation, so leave some margin there.
• Estate tax liquidity for high-net-worth families. Estate tax is a federal tax on the portion of assets above the exemption amount when they pass to the next generation at death. For 2026 the federal estate tax exemption is $15 million per person, the top rate on the excess is 40%, and the tax is generally due within nine months of death. Families whose wealth is mostly real estate or business interests may need life insurance proceeds to pay that tax so they are not forced to sell assets at a discount. DIME does not address this need, so it has to be calculated separately; if a spouse is not a U.S. citizen, different rules apply.
• Calculate separately for two-income households. When both spouses earn income, each is generally calculated on their own income and debts.
• Review periodically. Recalculate your coverage whenever you have a child, move or see a significant change in income.

How to Decide

If your household has one main earner, a mortgage and children, and not much in savings or investments, the DIME gross need minus your existing coverage and Social Security survivor benefits will usually give you a reasonable coverage range. If you already have substantial savings and investments, or your children are close to independence, the gap after those subtractions may be much smaller, and there is no need to buy coverage based on the gross figure. If your family’s assets are near or above the estate tax exemption, or you have cross-border assets or a spouse who is not a U.S. citizen, DIME covers only part of the picture, and the coverage amount depends more on estate tax and liquidity analysis.

If you would like to work through these steps with your own family’s numbers, you can schedule a consultation with MMG.