Life Insurance Needs Calculator (DIME formula)
Enter outstanding debt, annual income with years of replacement, mortgage balance, and education cost per child. Returns total coverage need and the additional coverage you should buy after subtracting existing policies and savings.
DIME inputs
- D — Debt payoff
- 30,000
- I — Income replacement
- 600,000
- M — Mortgage payoff
- 250,000
- E — Education fund
- 200,000
- Total coverage need
- 1,080,000
- Existing coverage + savings
- −20,000
- Additional coverage to buy
- 1,060,000
DIME is a starting point, not a final number. It assumes survivors invest the lump sum at a modest return and use it to replace your contributions over the income-replacement period.
How it works
What DIME calculates
DIME is a four-bucket method that turns 'how much life insurance do I need?' into a concrete number. It assumes the insurance payout will pay off all debt, replace your income for a chosen number of years, pay off the mortgage, and fund children's education — without your survivors having to liquidate assets or take a lower standard of living.
Each letter is straightforward: D = sum of all consumer debt (cards, auto, student, personal). I = annual income × years to replace (commonly 7-10 years until kids are grown or until spouse retrains). M = mortgage balance to extinguish housing risk. E = projected 4-year college cost × number of children.
Why DIME beats simple multipliers
The 'buy 10× your income' rule is the most common shortcut, but it ignores debts and dependents. A single 30-year-old with no debt and no kids genuinely doesn't need 10× — DIME might tell them they need 2× or zero, just enough to cover funeral costs.
Conversely, a 40-year-old with three kids, $250K mortgage, $40K student loans, and $80K income hits about $980K under DIME (10 years × 80K + 250K + 40K + 4 × 100K education projection). 10× income would only cover 80% of that.
DIME also makes assumptions explicit. You can vary 'years to replace' from 5 (if spouse will return to work) to 20 (if kids are very young) and see the answer change live.
What DIME doesn't account for
No inflation adjustment on income replacement. If you select 20 years of replacement, the lump sum needs to grow at roughly inflation to hold purchasing power. Most planners suggest investing 60/40 stocks/bonds to come close.
No survivor income. If your spouse will earn $50K post-event, you can subtract that × years from the 'I' bucket — the calculator doesn't do this automatically.
No funeral or final expense buffer. Add $15-25K to the total if you don't already have funds set aside.
No taxes. US life insurance death benefits are generally tax-free, so the gross figure is also the net figure for most families. State estate tax may apply at high coverage levels.
Frequently asked questions
›Term or whole life?
Term in nearly all cases. Term covers your high-need years (kids at home, mortgage active) at 5-10× lower cost than whole life. Whole life is an investment vehicle wrapped in insurance and rarely the best tool for either purpose.
›How long should the term be?
Match it to the longest DIME bucket. If 'I' assumes 20 years and 'E' funds kids ages 8-22, a 20-year term covers the whole need. 30-year terms are useful for very young families.
›What if both parents work?
Run DIME twice — once per income, with different income-replacement years. Buy two separate policies sized to each person's contribution. Don't double-count the mortgage; split it.
›Does my employer's policy count?
Yes for the 'existing coverage' line, but with caution: most group life is 1× salary, ends when you leave the job, and isn't portable. Treat it as a temporary supplement, not a substitute.
›How does mortgage payoff compare to keeping the mortgage?
Some advisors prefer leaving the mortgage and investing the equivalent of M in stocks. DIME assumes payoff, which is more conservative. Both approaches work; DIME is simpler to model.
›Is the answer the same for stay-at-home parents?
No, but they still need coverage. Replace 'income' with the cost of childcare, household management, transportation, and meal prep that the working spouse would have to outsource. Often $40-60K/year.
›Should I include retirement savings as offsets?
Yes, but partially. Liquid investments outside of 401(k)/IRA count fully. Tax-advantaged accounts have early-withdrawal penalties so count them at 70-80% of stated value if survivors might tap them before retirement age.
›Does the calculation leave my browser?
No. Everything is computed in-browser; no data is sent to any server.
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