What Is Indexed Universal Life Insurance?
Indexed universal life (IUL) is a permanent life insurance policy with a cash-value account whose growth is tied to a stock market index — most commonly the S&P 500. You get three things in one product: a lifetime death benefit, a tax-advantaged growth account, and a flexible premium structure.
Unlike a variable universal life policy, your money isn't actually invested in the market. The insurer credits interest based on index performance using a formula that includes a cap (upper limit), a floor (lower limit, almost always 0%), and a participation rate. The 0% floor is the headline feature: you capture upside in good years and take a zero in bad ones — never a loss.