How the DIME formula works
DIME is the standard needs-analysis framework because it forces specificity: instead of a vague "seven to ten times salary," it totals the four obligations a death actually creates for a family.
Gap = Need − Existing Coverage − Liquid Assets
Policy = Gap (rounded up to the nearest $50,000) (underinsurance beats overinsurance)
The formula's virtue is that it prices actual liabilities rather than an arbitrary income multiple. Its known limitation is that it prices income replacement linearly — ignoring the investment returns a large tax-free death benefit can earn — which is why professional needs analyses layer a present-value discount on top. DIME answers "how much" conservatively-high, which for a family-protection decision is the correct side to be wrong on.
Why "ten times your salary" undershoots most families
The 7–10× income shortcut predates dual-mortgage, childcare-priced household economics. Run the breakdown on a typical profile — $90,000 income, 12 years of replacement, a $320,000 mortgage, two children headed to college — and the gross need approaches $1.7 million before final expenses, against a typical existing group policy of one to two times salary. The gap in that illustrative case is roughly $1.2–$1.4 million of unowned coverage. That is not an argument for buying more permanent insurance; it is an argument for a large, cheap, 20- or 30-year level-term policy that prices the actual exposure and expires when the mortgage is gone and the children are grown.
Term or permanent — which one fills this gap
The DIME gap is almost definitionally temporary: mortgages amortize to zero, children reach independence, income-replacement windows end. Temporary exposure maps to term insurance. Permanent (whole/universal) insurance serves genuinely permanent needs — estate liquidity for taxable estates, a special-needs child who will never be independent, business buy-sell funding. Buying a $250,000 whole-life policy to cover a 20-year mortgage is paying lifelong premiums for a duration mismatch; the coverage gap this tool measures is exactly the case level-term was designed to close at a fraction of the cost.
The employer group-life trap
Group life feels free because it usually is — one to two times salary, no underwriting, deducted from a paycheck. Two structural problems: it is not portable (change jobs, lose the coverage, now older and more expensive to insure privately), and it is rarely enough (one to two times salary against a DIME need that commonly runs seven to ten). Count it in "existing coverage" — this tool does — but size your owned policy so that losing the group benefit tomorrow does not leave a gap.
What a real policy costs, roughly
| Profile | $500k / 20-yr term | $1M / 20-yr term |
|---|---|---|
| Healthy 30-year-old | ~$20–30/mo | ~$35–55/mo |
| Healthy 40-year-old | ~$30–50/mo | ~$60–95/mo |
| Healthy 50-year-old | ~$80–130/mo | ~$150–240/mo |
Illustrative preferred-class ranges; tobacco use, health conditions, and hazardous occupations move these substantially. The point is the price of the DIME gap is usually far more affordable than people assume — the gap feels large because the obligation is, but term pricing for temporary exposure is not.