GLOSSARY · LIFE

Indexed Universal Life (IUL)

Permanent life insurance with cash value tied to a stock index, with caps and floors — often oversold.

Life 📋 Reviewed by InsureCo Editorial Team · Updated April 30, 2026
Quick definition: Permanent life insurance with cash value tied to a stock index, with caps and floors — often oversold.

Full explanation

Indexed Universal Life (IUL) is a permanent life insurance product with cash value linked to an equity index (typically S&P 500) with a cap rate (typically 8-12% in 2026) and floor (typically 0%, sometimes 1%). It's marketed as 'stock market upside without the downside risk.' Reality: index credits exclude dividends (~30% of S&P 500 long-run total return), cap rates can be lowered by the carrier mid-policy, surrender charges last 10-15 years, and policy fees can eat early-year cash value. Net long-term performance frequently underperforms a 'buy term and invest the difference in a low-cost index fund' alternative for most consumers.

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