Two families. Term life insurance covers a fixed period, such as 10, 20 or 30 years, and pays only if the insured dies within it. Permanent life insurance is designed to stay in force for life and accumulates a cash value the owner can borrow against or surrender. Whole life, universal life, indexed universal life and variable universal life are its main forms, and they differ in what is guaranteed and who bears the investment risk. Each has its own page.
Where people get it. An individual policy is bought from an insurer and belongs to its owner. Group life insurance through an employer is a workplace benefit governed by the plan, and it generally ends when the job does.
The tax treatment. Section 101(a)(1) of the Internal Revenue Code provides that "gross income does not include amounts received (whether in a single sum or otherwise) under a life insurance contract, if such amounts are paid by reason of the death of the insured." The main exception is a sale of the policy: after a transfer "for a valuable consideration," the exclusion is limited to what the buyer paid for the policy plus the premiums paid afterward. The statute exempts some transfers, such as one to the insured, a partner of the insured or a corporation in which the insured is a shareholder or officer, but a sale to an outside investor gets no exception. Section 7702's tests matter because a contract that fails them is not treated as life insurance for tax purposes, and a policy that passes them but is funded too quickly can become a modified endowment contract, whose withdrawals and loans are taxed less favorably. Death benefits can also be included in the insured's gross estate for estate tax, when the insured held any incident of ownership in the policy at death or the proceeds are payable to the estate, which is why some families hold policies in an irrevocable life insurance trust.
How much and for how long. Needs analysis estimates what the survivors would need, and human life value estimates the earnings a death would remove. Neither depends on the policy type, which is the second decision.