DIME — Debt, Income, Mortgage, Education — is one of the most widely referenced frameworks for estimating life insurance needs. It isn't a proprietary formula owned by any single insurer; it's a structured checklist that shows up across financial-education sites because it breaks a vague question ("how much coverage do I need?") into four concrete, addable categories. Rather than guessing at a round number, DIME forces you to look at your actual obligations one at a time, which tends to produce a more defensible estimate than a flat rule of thumb.
Start with non-mortgage debt: credit cards, auto loans, personal loans, and any student loans your family would remain responsible for. The goal of this line item is simple — make sure a death in the family doesn't also leave survivors with debt collectors. Add up current balances, not original loan amounts, since paying these off is the actual obligation. Pay particular attention to co-signed debt: if you co-signed a loan with a family member, that balance is a real obligation your estate could be pursued for, even if you weren't the primary borrower on paper.
This is the income-replacement piece: your annual income multiplied by the number of years your family would need support. See our dedicated guide on choosing replacement years for how to pick that number. This is usually the largest single component of a DIME estimate, especially for households with young children, since it's the only line item that scales with both your paycheck and the length of time your family depends on it. If you receive irregular income (commissions, bonuses, self-employment income), use a conservative multi-year average rather than your best year, so the estimate doesn't overstate what a policy would actually need to replace.
Your remaining mortgage balance — not your home's value, and not your original loan amount. Covering the mortgage balance means your family can stay in the home without the added financial strain of a monthly payment on a single income (or no income, for a stay-at-home household). If you also carry a home equity line of credit (HELOC) or a second mortgage, add that outstanding balance here too; it's a debt secured by the same property and gets easy to forget because it doesn't show up on your primary mortgage statement.
A fund for children's education or ongoing childcare costs. This is the most household-specific line item: a family with toddlers might prioritize a childcare fund for the next several years, while a family with teenagers might focus more on college costs. Use a realistic number based on your actual plans (in-state public college, private school, or no specific plan at all) rather than a generic "average tuition" figure, since that can vary enormously by state, school type, and whether a child lives at home during college.
A few patterns show up repeatedly when people run their own DIME numbers for the first time. Recognizing them tends to matter more than getting any single input exactly right.
After adding D + I + M + E, most DIME calculations subtract two things: existing life insurance coverage (including employer group policies) and liquid savings or investments you'd actually be willing to use for these goals. This step matters — skipping it means over-insuring and paying for coverage you don't need. Employer group life insurance is easy to overlook here since it doesn't feel like "your" policy, but if it would actually pay out to your family, it counts as existing coverage and should reduce the gap you're solving for with a personal policy.
Consider a two-income household: 34 years old, $55,000 primary income, a $165,000 mortgage balance, $14,000 in combined credit-card and auto-loan debt, and a modest education fund target for one child.
| Debt (credit cards + auto loan) | $14,000 |
| Income (($55,000 × 12 years) | $660,000 |
| Mortgage balance | $165,000 |
| Education fund | $35,000 |
| Less: existing group life insurance | −$50,000 |
| Less: liquid savings | −$10,000 |
| DIME estimate | $814,000 |
DIME numbers can look very different for a household closer to the end of its dependency window. Consider a 48-year-old single parent earning $80,000, with $40,000 left on the mortgage, $8,000 in other debt, and two teenagers who plan to attend an in-state public university:
| Debt | $8,000 |
| Income ($80,000 × 6 years, to the younger child's independence) | $480,000 |
| Mortgage balance | $40,000 |
| Education fund (two in-state students) | $70,000 |
| Less: existing coverage | −$25,000 |
| Less: liquid savings | −$30,000 |
| DIME estimate | $543,000 |
Notice how much of the difference between these two examples comes from the income-replacement years, not the household's income level — the shorter dependency window in the second example does more to lower the total than the higher salary does to raise it.
Many rules of thumb boil life insurance down to a single multiple of income — "buy 10x your salary" is the most common version. That approach is easy to remember, but it treats a 26-year-old renter with no dependents the same as a 40-year-old homeowner with three children and a mortgage, as long as their incomes match. DIME produces a household-specific number instead, because it explicitly separates out the pieces (debt, income-replacement duration, mortgage, education) that actually differ between those two households, rather than collapsing everything into one multiplier.
DIME doesn't automatically include final expenses (funeral costs, commonly estimated around $15,000) unless you add them separately, and it doesn't account for a non-working spouse's household contributions unless you value that separately too — see our guide on coverage for young families for that scenario. It also treats "years of income" as a single input, when in reality your family's needs might taper over time rather than end abruptly: a family often needs full income replacement in the first several years and then a declining amount as children grow more independent, which DIME's flat multiplication doesn't capture on its own. Finally, DIME says nothing about what type of policy (term or permanent) should fund the resulting number — for that, see our term vs. permanent overview.