Life insurance needs calculator: DIME method vs 10x salary rule compared

Calculate your needs using the DIME method: (D) All non-mortgage debts + (I) Net annual income × years until youngest child is financially independent + (M) Outstanding mortgage balance + (E) Projected education costs per child × number of children. Subtract existing liquid assets and current coverage. For a 38-year-old with $120K salary, $385K mortgage, two young children, and $28K in debts, DIME typically produces a coverage need of $1.8–$2.2M — far above the popular 10× salary rule's $1.2M estimate.

Term life provides a death benefit only for a specified period (10, 20, or 30 years) with no cash value accumulation. Annual premiums are 85–95% lower than whole life for equivalent coverage. Whole life (permanent) insurance provides lifetime coverage and builds tax-deferred cash value at 3–5% guaranteed returns, which can be borrowed against or surrendered. For income replacement during working years, term life is almost always the correct choice — the premium savings, invested in diversified equities, dramatically outperform whole life's cash value returns over a 20–30 year horizon.

The financially optimal time to purchase term life insurance is at your youngest age in good health — typically when you first have dependents or take on a mortgage. Every year you delay purchasing increases premiums: a healthy 30-year-old might pay $900/year for a $1M 20-year term policy; the same coverage at age 40 costs $1,400/year; at age 50, $4,500/year. Pre-existing conditions diagnosed after policy purchase are generally covered, while delaying until after a diagnosis may result in higher rates or denial of coverage.

If you have no dependents (children, spouse, elderly parents financially relying on you), no co-signed debts (joint mortgage, co-signed student loans), and sufficient assets to cover your final expenses and any outstanding individual debts, life insurance provides limited financial benefit. The exception: purchasing a small policy to cover final expenses ($15,000–$50,000) to prevent estate complications. Young adults with no dependents are typically better served directing premium dollars toward disability insurance, which is far more likely to be needed during working years.