Life insurance is a contract between an insurance policy holder and an insurer, where the insurer promises to pay a designated beneficiary a sum of money upon the death of the insured person. Depending on the contract, other events such as terminal illness or critical illness may also trigger payment. The policy holder typically pays a premium, either regularly or as a lump sum. Other expenses (such as funeral expenses) are also sometimes included in the premium; however in the United States the predominant form simply specifies a lump sum to be paid on the policy holder's death.
The advantage for the policy owner is "peace of mind", in knowing that the death of the insured person will not result in financial hardship for loved ones.
Special exclusions may apply, such as suicide clauses, whereby the policy becomes null and void if the insured commits suicide within a specified time (usually two years after the purchase date; some states provide a statutory one-year suicide clause). Any misrepresentations by the insured on the application may also be grounds for nullification. Most US states specify a maximum contestability period, often no more than two years. Only if the insured dies within this period will the insurer have a legal right to contest the claim on the basis of misrepresentation and request additional information before deciding whether to pay or deny the claim.
The face amount of the policy is the initial amount that the policy will pay at the death of the insured or when the policy matures, although the actual death benefit can provide for greater or lesser than the face amount. The policy matures when the insured dies or reaches a specified age (such as 100 years old).
Life insurance may be divided into two basic classes: temporary and permanent; or the following subclasses: term, universal, whole life and endowment life insurance.