Understanding IUL
How Indexed Universal Life (IUL) Works
Lifetime protection plus cash value that grows with a market index — and a floor in down years.
7 min read
Start with a question
You’ve heard IUL “follows the market.” Here’s how it works for you.
In plain language
Indexed Universal Life is permanent life insurance with two powerful parts: a lifelong death benefit for your family and a cash value account that grows over time. The insurer credits interest to your cash value using a formula linked to an external market index, such as a stock index.
Your money isn’t invested directly in the market, so you take part in index growth while a floor — commonly 0% — protects your credited interest when the index falls. A participation rate and a cap define how much of the index gain is credited.
Index rises 12%
Index
+12%
Credited
+9%
With a 9% cap, you earn 9% credited interest.
Index rises 5%
Index
+5%
Credited
+5%
Below the cap, with 100% participation, you earn the full 5%.
Index falls 8%
Index
−8%
Credited
0%
The 0% floor means no negative interest is credited in a down year.
Example values. Each contract sets its own cap, floor and participation rate.
A practical example
Example
Daniel wants to protect his family and grow his savings for the long term. With an IUL, his cash value earns interest in strong index years and the floor protects his credited interest in down years — so he keeps moving forward.
Keys to get the most from it
- Choose a premium you can maintain to keep your cash value growing.
- Review your annual statement with your licensed professional.
- Start early: time is your cash value’s best ally.
- Update your plan as your family’s goals change.
Common questions
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