Life & retirement income
Indexed universal life (IUL)
Permanent coverage with flexible premiums and cash value credited according to the movement of a market index, with a floor that prevents index losses and a cap that limits index gains. The most oversold product in the industry, and a reasonable one when it is used correctly.
Worth considering if
- You have already maximised 401(k), IRA and HSA contributions
- You want permanent coverage with premium flexibility year to year
- You want index-linked growth with protection against index losses
- You have a long horizon and will fund the policy properly for decades
- You understand and accept that the illustration is not a forecast
Watch out for
- Illustrations are extremely sensitive to the assumed crediting rate
- Caps and participation rates are set by the insurer and can be changed
- Cost of insurance rises with age and is deducted from cash value
- Underfunding a policy can cause it to lapse decades later — the classic failure mode
- It is frequently sold as “tax-free retirement income,” which oversimplifies badly
How the crediting actually works
Your premium, less policy charges and the cost of insurance, goes into the cash value. You allocate that cash value among crediting strategies — typically a fixed account and one or more indexed accounts tied to something like a broad equity index. At the end of each segment period, usually a year, the insurer measures the index movement and credits interest according to the formula in your contract.
Three parameters shape the result. The floor sets the minimum credit, almost always zero, so a year the index falls credits nothing rather than a loss. The cap sets the maximum, so a year the index rises 22 percent with a 9 percent cap credits 9. The participation rate credits a percentage of the index move, so a 70 percent participation rate on a 10 percent move credits 7.
Critically, you are not invested in the index and you do not receive its dividends. The comparison is not “IUL versus owning the index” — it is “IUL versus a fixed crediting rate, with more variability and a zero floor.”
| Index return that year | Credited to your cash value | Why |
|---|---|---|
| +22% | +9% | Cap limits the credit |
| +6% | +6% | Below the cap, credited in full |
| −18% | 0% | Floor prevents a negative credit |
| +9% | +9% | Exactly at the cap |
| 0% | 0% | No index movement to credit |
Why the illustration deserves skepticism
An IUL illustration projects decades of crediting from an assumed rate. Small changes in that assumption compound into enormous differences by year thirty. A policy illustrated at 6.5 percent and a policy illustrated at 5.0 percent can look like different products, and the difference is a spreadsheet input, not a contractual promise.
Regulation has tightened what carriers may illustrate, which helped. It did not change the underlying fact: the illustrated column is arithmetic performed on an assumption. The guaranteed column, which assumes minimum crediting and maximum charges, is the contract.
Ask for both. Ask what the policy looks like at the guaranteed rate. Ask what happens if you skip a premium in year twelve. If those questions produce discomfort rather than answers, that tells you something about the recommendation.
Where IUL is a reasonable choice
If those describe you, IUL can do a real job. If they do not — if the premium is a stretch, or the horizon is short, or it is being pitched as a substitute for a retirement account you have not yet maxed — the honest answer is usually term life plus the retirement account, and we will say so.
- You have filled every tax-advantaged retirement account available to you
- You need permanent death benefit and want flexibility in how you pay for it
- You will fund it at a level well above the minimum premium, consistently, for decades
- You want a floor under the crediting and accept a cap over it
- You will review the policy annually rather than filing it and forgetting it
Frequently asked questions
Can I lose money in an IUL?
Index losses do not reduce your credited value because of the floor. You can still lose money overall, because policy charges and the cost of insurance are deducted regardless of crediting. A string of zero-credit years combined with rising insurance costs can reduce cash value, which is precisely why funding level matters.
Is IUL really tax-free retirement income?
The mechanism is real but the shorthand is misleading. Cash value grows tax-deferred, and properly structured policy loans can be accessed without immediate income tax. If the policy lapses with an outstanding loan, a substantial taxable event can result. It is a strategy with real requirements, not a free lunch.
How is IUL different from a variable universal life policy?
A variable universal life policy invests cash value in subaccounts that function like mutual funds — you get the full market return and the full market loss. An IUL credits interest by reference to an index with a floor and a cap. VUL offers more upside and real downside; IUL trades upside for a floor.
Can the insurer change my cap?
Yes, within the contractual guaranteed minimums. Caps and participation rates are declared by the insurer and can be adjusted for future segments. The contract guarantees a minimum cap or participation rate; the current rate is not guaranteed to persist. Ask what the guaranteed minimum is, not just what today’s cap is.
Related coverage
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