Accidental Death and Dismemberment (AD&D) Insurance
Do not buy AD&D as life insurance. If you want a death benefit, buy term. Accept AD&D only when it arrives free as a group rider, and never let it substitute for coverage you actually need. Here is why the arithmetic is so lopsided.
It covers about one death in twenty. AD&D pays only for death by accident. CDC mortality data puts unintentional injury at roughly 7% of US deaths across all ages, and the share falls sharply with age — accidents dominate mortality for people in their twenties precisely because so little else kills them, and become statistically trivial for the fifty-year-old with a mortgage and three dependents who is the actual buyer of life insurance. Heart disease, cancer, and stroke, which account for the majority of deaths in that age range, pay nothing.
Price the two policies against each other. If is your probability of death and the accidental share, an actuarially fair AD&D premium for face amount is:
against for term. The ratio is just — the accidental share of deaths — so the fair price of AD&D relative to term is whatever fraction of deaths at your age are accidental. That is the whole argument, and the age dependence is the point: at 25, accidents are roughly a third of all deaths and AD&D is defensible; at 50, once cancer and cardiovascular disease dominate, the accidental share falls into the single digits and AD&D should cost under 10% of term for the same face amount. It routinely costs 15–25% of term. The buyer with a mortgage and three dependents — the person actually shopping for life insurance — is paying two to four times the fair price for a policy that covers a twentieth of the risk.
A concrete version: $500,000 of AD&D commonly runs $100–$200 a year. Healthy 40-year-olds can buy $500,000 of 20-year term for roughly $300 a year — covering every cause of death. The AD&D policy costs half as much and covers a twentieth as much.
Dismemberment pays fractions instead of the face amount. The “&D” half is sold as though losing a limb pays $500,000. Read the schedule. Standard AD&D pays the full principal sum only for loss of two limbs, sight in both eyes, or a combination; a single hand, foot, or eye typically pays 50%, and a thumb and index finger perhaps 25%. Coverage of paralysis varies by carrier and is frequently excluded or limited.
The exclusions void exactly the accidents you are imagining. Typical AD&D exclusions remove death or injury resulting from intoxication or drug impairment, private aviation, war, self-inflicted injury, commission of a felony, and hazardous activities — often naming motorcycling, scuba, skydiving, and rock climbing. Impairment and single-vehicle accidents are a large share of accidental deaths, so a meaningful fraction of the claims a buyer pictures would be denied. Read the exclusion list before you assign any value to the policy.
The disability half is the risk you actually face. Losing a limb is far more likely to end your income than your life, and AD&D pays a small lump sum for that outcome while doing nothing about the thirty years of earnings that just vanished. That is the job of long-term disability insurance (section “Disability Insurances: Covering Your Lost Income”), which covers illness as well as accident and which is the coverage most high earners are genuinely underinsured on. If the AD&D premium is competing for the same dollar as a disability policy, the disability policy wins every time.
The narrow exception. Take it when it is free. Many employers include a small AD&D rider at no cost or a few dollars a month, and travel credit cards bundle accidental death coverage for common-carrier trips. Free coverage of a real if unlikely risk is worth accepting. Just do not count it in your insurance needs analysis (section “Estimating Life Insurance Needs”), because you cannot plan around a benefit that pays in 5% of scenarios.