The DIME Method: How to Calculate Life Insurance Needs

Guessing how much life insurance you need is one of the most common financial planning mistakes. People buy round numbers — $500,000 or $1,000,000 — without calculating whether that amount actually covers what it is meant to protect. The DIME method is a structured approach that calculates your specific coverage need based on four concrete financial obligations.

D — Debt

Add up all outstanding debt excluding your mortgage (which has its own category). This includes credit cards, auto loans, personal loans, student loans, and any other obligations. The death benefit should be able to pay off these debts entirely so your family is not left managing them on a reduced income.

I — Income replacement

Multiply your annual income by the number of years your family would need income support. For most households with young children, 15-20 years is appropriate — long enough to cover the period before children become financially independent and before your surviving spouse can reach Social Security or full retirement.

A $75,000/year earner needing 15 years of replacement needs $1,125,000 for this category alone.

M — Mortgage

Add your remaining mortgage balance. The goal is for the death benefit to allow your family to pay off the home entirely and eliminate housing cost uncertainty. This is kept separate from debt because it is secured and often the largest single liability.

E — Education

Estimate future education costs per child. A conservative estimate is $100,000 per child for a public university education including room and board. If you have three children, that is $300,000 in this category. Private university costs could justify $150,000-$200,000 per child.

Using DIME to get your number

Add D + I + M + E, then subtract any existing life insurance coverage (employer group life, existing policies). The result is your coverage gap — the amount of new term life insurance you should buy. Use our life insurance calculator to run the full DIME calculation with your specific numbers and get an estimated monthly premium.