14.4 Accidental Death & Dismemberment and Supplemental

Key Takeaways

  • AD&D pays only when loss results directly from an accident; death from illness or natural causes is never covered.
  • The principal sum is the full face amount (paid for accidental death or loss of two or more members); the capital sum is a percentage, commonly 50%, for the loss of a single member.
  • Accidental means (cause and result unintended) is stricter than accidental results (only the result unintended); modern policies usually use the results test.
  • Common AD&D exclusions include war, suicide, illness, non-passenger aviation, and injury while committing a felony or while intoxicated.
  • An accidental death benefit (double indemnity) rider typically doubles the life death benefit if death is accidental, usually within 90 days and before a stated age.
Last updated: June 2026

Accidental Death & Dismemberment and Supplemental Coverage

Accidental Death and Dismemberment (AD&D) insurance pays a benefit only when death or a specified bodily loss results directly from an accident, independent of all other causes. It is a limited form of coverage: a death from illness, old age, or natural causes is not covered. AD&D is frequently sold as a rider on a life policy or as a group benefit, and it is inexpensive because the covered risk is narrow.

AD&D is offered in two main forms. Voluntary AD&D is purchased individually or chosen as a payroll-deducted group option, while travel-accident and common-carrier policies pay only for accidents that occur while the insured is a fare-paying passenger on a plane, train, or bus. Group AD&D is one of the most common employer-paid benefits because the premium is small relative to the face amount. In every form the defining feature is the same: an accident must be the direct and independent cause of loss, and the benefit is a fixed schedule rather than a reimbursement of medical bills.

The Principal Sum and Capital Sum

Two terms drive every AD&D calculation:

  • Principal sum - the full face amount, paid for accidental death or for the loss of two or more members (for example, two limbs, two eyes, or one limb and one eye).
  • Capital sum - a percentage of the principal sum, paid for the loss of a single member, such as one hand, one foot, or sight in one eye. The capital sum is commonly 50% of the principal sum.

A typical schedule of benefits:

LossBenefit
Life100% (principal sum)
Both hands, both feet, or sight of both eyes100%
One hand and one foot100%
One hand or one foot or sight of one eye50% (capital sum)
Thumb and index finger of same hand25%

Accidental Means, Exclusions, and Double Indemnity

Many AD&D policies historically required accidental means (both the cause and the result must be unintended), a stricter standard than accidental results (only the outcome is unintended). Modern policies generally use the more favorable results test, but exam questions still test the distinction.

Common exclusions in AD&D:

  • War or acts of war, and service in the military
  • Suicide or intentionally self-inflicted injury
  • Illness, disease, or any bodily infirmity (and bacterial infection except from an accidental cut)
  • Aviation other than as a fare-paying passenger
  • Injury while committing a felony or while intoxicated

A related life-insurance feature is the accidental death benefit (ADB) rider, often called double indemnity. It pays an additional amount - usually equal to the base face amount, doubling the total death benefit - if the insured dies by accident, typically within 90 days of the accident and before a stated age such as 65 or 70.

Worked Examples and Why AD&D Supplements Life

Example 1 - capital sum: A worker carries a $100,000 AD&D policy and loses sight in one eye in a workplace accident. Loss of one member pays the capital sum of 50%, so the benefit is $50,000. If the worker had lost sight in both eyes, the principal sum of 100% ($100,000) would apply.

Example 2 - double indemnity: An insured owns a $250,000 whole life policy with an accidental death benefit rider equal to the face amount. If the insured dies of natural causes, the beneficiary receives $250,000. If the insured dies in a covered accident within the rider's time limit, the beneficiary receives the base $250,000 plus the $250,000 rider = $500,000.

Why AD&D supplements rather than replaces life insurance: AD&D pays only for accidental loss, but the leading causes of death are illnesses such as heart disease and cancer, which AD&D never covers. A consumer who buys only AD&D has no protection against the most likely cause of death.

Timing and definitions decide many AD&D claims. Most contracts require that death or loss occur within 90 days of the accident and be a direct result of it, so a person who survives an accident for a year and later dies of complications may fall outside the time limit. The contract also defines a member precisely: loss of a hand or foot usually means severance at or above the wrist or ankle, and loss of sight or hearing must be total and irrecoverable, not merely impaired. These bright-line definitions reduce disputes but can surprise claimants who expect partial losses to pay.

AD&D should be positioned in a needs analysis as inexpensive supplemental protection layered on top of a sound life insurance base. Because the human life value approach and a needs analysis both size the death benefit against income replacement, final expenses, and debt, AD&D's role is to add a contingency cushion for the specific risk of accidental death, not to satisfy the core need that permanent or term life insurance is built to meet.

Common traps: (1) AD&D death benefit is paid only for accidents - illness deaths get nothing. (2) The capital sum (single loss) is a percentage; the principal sum (death or dual loss) is the full amount. (3) The ADB rider requires death within a set window (often 90 days) and before a maximum age, or the doubling does not apply.

Test Your Knowledge

An AD&D policy has a principal sum of $200,000. The insured loses one hand in an accident, and the schedule pays the capital sum of 50% for the loss of one member. What is the benefit?

A
B
C
D
Test Your Knowledge

Which of the following is typically EXCLUDED from AD&D coverage?

A
B
C
D