How much life insurance do you need?

A common starting guideline is 10–12 times your annual income, adjusted for debts, dependents, and existing savings. The right number depends on who relies on your income and for how long they would need it replaced.

Life insurance exists to replace income your dependents would lose if you died. The question "how much" comes down to: how much income needs to be replaced, for how long, and how much do you already have saved or insured. The III's life insurance guidance and the NAIC consumer resource on life insurance offer frameworks for the calculation — no single number fits everyone.

The 10–12x income rule of thumb

The most widely cited starting point is 10–12 times your gross annual income. A $75,000/year earner would be looking at $750,000–$900,000 in coverage. This approximates what it would take to invest the death benefit and generate a comparable annual income at a conservative withdrawal rate. It's a rough approximation, not a precise calculation — treat it as a floor, not a ceiling.

The DIME method: a more precise framework

A more structured approach used by many financial planners is the DIME method: add up your Debt (everything except mortgage), your Income replacement need (annual income × years until youngest child is financially independent), your Mortgage balance, and your Education costs for all children. The total gives a more tailored target.

Factors that increase the number

Young children with many years until financial independence.
A non-working or lower-earning spouse who would need income replacement.
High-debt load (mortgage, student loans, business debt).
No existing savings or retirement assets.
Significant final expense needs (burial, estate costs).

Factors that decrease the number

No dependents (single, no children, no co-borrowers).
Substantial savings or investment assets already accumulated.
Surviving spouse with independent high income.
Short remaining mortgage term.
Children who are nearly or already financially independent.

Term length matters as much as coverage amount

A 30-year-old buying $1M of 20-year term pays roughly $30–$50/month (highly variable by health and insurer). The same person at 45 with a 20-year term will pay substantially more. Buy when you're young and healthy — the premium you lock in on a level-term policy stays flat for the policy term. The III notes that term life is the most cost-effective option per dollar of coverage for pure income replacement needs.

Authoritative guidance on coverage sizing

The III recommends calculating coverage based on income replacement, debt obligations, and education costs for dependents — not just a flat income multiple. — III — Life Insurance Basics
Term life insurance provides the greatest amount of coverage per premium dollar, making it the most commonly recommended vehicle for income replacement. — III — Principal Types of Life Insurance
The NAIC notes that life insurance needs change over time and recommends reviewing coverage annually or after major life events (marriage, new child, home purchase, retirement). — NAIC

Key takeaways

Start at 10–12x annual income as a rough floor — then adjust up or down based on debt, dependents, and savings.
DIME (Debt + Income replacement + Mortgage + Education) gives a more precise target.
Young children, high debt, and low savings all push the number higher.
No dependents and substantial savings push it lower — you may need very little.
Buy term while young and healthy — premiums are level for the policy term and rise sharply with age.

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