How Much Life Insurance Do You Need
The DIME method is the standard framework financial planners use: Debt + Income + Mortgage + Education. Add up your remaining mortgage, car loans, credit cards, and any other debts. Add your annual income multiplied by the number of years your family needs support (typically until the youngest child is 18 or your spouse reaches retirement age). Add $100,000–$200,000 per child for college. Add $10,000–$25,000 for final expenses. Subtract any existing life insurance and liquid savings.
Most families with children need 10–15 times the primary earner's annual income in total coverage. A household earning $100K with a $250K mortgage and two kids typically needs $1–$1.5 million. Single-income families skew toward the higher end because there's no second earner to fall back on. Dual-income families can reduce the multiplier because each spouse partially replaces the other's income.
Term vs. Whole Life Insurance
| Feature | Term Life | Whole Life |
|---|---|---|
| Coverage period | 10, 20, or 30 years | Lifetime |
| Monthly cost ($1M, age 30) | $50–$70 | $500–$900 |
| Cash value | None | Builds slowly over decades |
| Best for | 95% of families | Estate planning above $13.6M exemption |
| Complexity | Simple—pay premium, get coverage | Complex—fees, surrender charges, loan provisions |
| Investment component | None—invest the difference yourself | 2–3% returns (below market average) |
Buy term and invest the difference. A 30-year-old paying $60/month for $1M term instead of $700/month for $1M whole life saves $640/month. Invested at 7% over 30 years, that $640/month becomes $776,000. The whole life cash value would be roughly $250,000–$350,000 in the same period. Term wins by a wide margin for everyone except high-net-worth estate planning scenarios.
Life Insurance Cost by Age
| Age | $500K / 20-Year Term | $1M / 20-Year Term | $1M / 30-Year Term |
|---|---|---|---|
| 25 | $15–$20/mo | $25–$35/mo | $40–$55/mo |
| 30 | $18–$25/mo | $30–$45/mo | $50–$70/mo |
| 35 | $22–$30/mo | $40–$55/mo | $65–$90/mo |
| 40 | $30–$45/mo | $55–$80/mo | $95–$130/mo |
| 45 | $50–$70/mo | $85–$120/mo | $150–$210/mo |
| 50 | $80–$120/mo | $140–$200/mo | $250–$350/mo |
*Estimates for healthy, non-smoking individuals. Actual rates depend on health class, gender, state, and insurer. Women typically pay 15–20% less than men for the same coverage.
Premiums increase 4–8% per year of age. Locking in a 30-year term at age 30 costs far less over your lifetime than buying a 20-year term at 30 and renewing at 50 when rates have tripled. Every year you wait is money left on the table.
When to Update Your Life Insurance Coverage
Your coverage needs change with every major life event. Review your policy when any of these happen:
- Marriage. Your spouse now depends on your income. Add coverage to replace your earnings for 10–15 years or until their retirement age.
- Having a child. Each child adds $100,000–$200,000 in education costs and 18 years of income replacement. Update after every child.
- Buying a home. Your mortgage is likely your largest debt. Make sure your coverage includes the full remaining balance.
- Salary increase. If your income jumps 30%, your family's replacement needs jumped 30% too. Re-run this calculator after any significant raise.
- Paying off debt. Good news—as your mortgage balance drops and debts are cleared, you may be able to reduce coverage and lower your premiums.
- Divorce. Remove your ex-spouse as beneficiary and recalculate based on your new financial obligations, including any alimony or child support.
- Kids leaving home. Once your children are financially independent, your income replacement window shrinks and education costs drop to zero.
A good rule: re-run the numbers every 2–3 years or after any event on this list. Coverage that was right at 32 with one child and a new mortgage looks very different at 45 with three teenagers and a half-paid house.
To figure out how much you should have in liquid savings before buying a policy, use the emergency fund calculator. For a full picture of your current financial position, try the net worth calculator. And to project how much you need for retirement—and how insurance fits into that plan—use the retirement calculator.