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The DIME Method: Building Your Coverage Number
DIME is an acronym for the four categories of financial need your life insurance should cover:
D — Debt (Non-Mortgage)
Include all debts your family would inherit or need to pay off: car loans, student loans, credit card balances, personal loans. Don't include the mortgage here — that's the M. For most households, this ranges from $10,000–$100,000+. Your death shouldn't leave a surviving spouse managing debt payments on top of everything else.
I — Income (Replacement)
How many years of income does your family need you to replace? A common approach: the number of years until your youngest child is financially independent, or until your spouse could support themselves. If you have a 5-year-old and a working spouse, 18 years of income replacement keeps the family financially stable through the child's adulthood. Subtract your spouse's income from the calculation — you're replacing the gap, not the entire household income.
Example: $85,000 salary, spouse earns $45,000, 20 years of replacement needed. Gap = $40,000/year × 20 years = $800,000 income replacement component.
M — Mortgage
Your remaining mortgage balance. The goal: eliminate the housing payment so your family can stay in the home without your income contributing to the mortgage. This is often the largest single component — $200,000–$500,000+ for most homeowners.
E — Education
Estimate the cost of college for each child. Current average 4-year public university: ~$28,000/year all-in, or $112,000 total. Private: $60,000/year, $240,000 total. With two children at public school, this adds approximately $224,000 to your coverage need.
Offsets
Subtract existing life insurance (through employer or existing policies), liquid savings, and investments your family could access. Note: retirement accounts (IRA, 401k) may not be immediately accessible without penalty — don't count them as liquid offsets for near-term needs.
Why the 10× Rule Often Falls Short
The "10× your income" shortcut is quick and usually adequate for most families. For an $85,000 earner, it gives $850,000. The DIME method for the same person (with two kids, a $300K mortgage, $35K in debts) might produce $1.5M–$2.0M. The gap matters because:
- The 10× rule doesn't account for the mortgage separately
- It doesn't account for education costs explicitly
- It doesn't reduce for a spouse's income contribution
- It doesn't adjust for high-debt situations
Use DIME for a specific family situation. Use 10× as a quick sanity check. If DIME produces a number far above 10×, your financial obligations are above average (common for high-mortgage, two-child households).
Term vs. Whole Life: The Decision Most People Get Wrong
The life insurance industry sells a lot of whole life insurance. Whole life is a permanent policy that accumulates cash value — but costs 10–20× more than an equivalent term policy. A $500,000 whole life policy for a healthy 35-year-old: approximately $400–$600/month. The same $500,000 in 20-year term: approximately $25–$45/month.
The sales pitch for whole life: "it builds cash value" and "it never expires." The counterargument: the cash value accumulation is very slow and the returns are poor compared to investing the premium difference in index funds. "Buy term and invest the difference" consistently outperforms whole life from a pure wealth-building perspective. The $375 monthly difference between whole and term, invested at 7% annually over 20 years, grows to approximately $200,000 — far exceeding the cash value of most whole life policies.
When Whole Life Makes Sense
Whole life does have legitimate uses for specific situations: high-net-worth estate planning (to provide liquidity for estate taxes), business continuation planning, and people who have maxed all other tax-advantaged accounts and want another tax-deferred vehicle. For most working families with dependents and normal financial situations, term insurance is the appropriate choice.
| Age / Health | 20-Yr Term | 30-Yr Term | Whole Life (est.) |
|---|---|---|---|
| 30, nonsmoker, excellent health | $20–$30 | $30–$45 | $350–$500 |
| 40, nonsmoker, excellent health | $35–$55 | $60–$90 | $500–$750 |
| 45, nonsmoker, good health | $65–$100 | $110–$160 | $700–$1,000+ |
Use the Life Insurance Calculator to get your personalized DIME coverage number. For your overall financial picture, use the Net Worth Calculator.
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Frequently Asked Questions
How much life insurance do I need?
DIME method: Debt (non-mortgage) + Income (years needed × annual gap) + Mortgage balance + Education (college per child × children) − existing coverage − liquid savings. The 10× income shortcut produces: annual income × 10–12. For an $85,000 earner with two kids and a $300K mortgage, typical DIME result: $1.5M–$2.0M.
Should I buy term or whole life insurance?
Term for most families — pure protection at 10–20× lower cost than whole life. Buy term equal to 10–12× income, invest the premium difference. Whole life has legitimate uses for estate planning and maxed-out investment scenarios, but for typical working families with dependents, term is the right choice.
What is the DIME method for life insurance?
Debt (non-mortgage debts) + Income replacement (annual income gap × years needed) + Mortgage (remaining balance) + Education (college per child × number of children). Subtract existing coverage and liquid assets for your net coverage gap.
When should I buy life insurance?
When you have dependents who rely on your income. The best time is as young and healthy as possible — rates are lowest then. A 30-year-old pays roughly half what a 45-year-old pays for the same coverage. If planning to start a family, buy before pregnancy.
Do I need life insurance if my employer provides some?
Employer-provided group life insurance is typically 1–2× annual salary — usually not sufficient for families. It also disappears when you leave the job. Use the Life Insurance Calculator to determine your total need, compare to employer coverage, and buy individual term insurance for the gap. Individual term insurance stays with you regardless of employment.