
Permanent
Indexed Universal Life Explained Without the Sales Pitch
6 min read
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Indexed universal life
Indexed universal life, or IUL, is a form of permanent life insurance. Its cash value may be credited with interest that is linked to the movement of an external index, using a formula set by the policy. It is one of the more complex products in life insurance and is often oversold. Here is how it works, including the parts that tend to get skipped.
Cornerstone Capital is an independent life insurance brokerage, not an insurer. Carriers make underwriting decisions, and approval is never guaranteed. This form does not apply for coverage.
01The problem
Indexed universal life is usually introduced with its most attractive scenario: years of steady credited interest, loans in retirement, a death benefit at the end. That scenario depends on assumptions, and the assumptions are the part that gets the least attention.
The useful questions are the dull ones. What are the charges? What happens in a flat decade? How much more would I have to pay in if the cap drops? What does the lower-rate illustration show?
02The tool
IUL is universal life. Premiums go in, charges come out every month, and the remaining cash value may be credited with interest tied to the movement of an external index under a formula the insurer sets. You do not own the index or anything in it.
Its first job is the death benefit. Everything else about it is a feature with limits attached.
03The mechanics
IUL is permanent life insurance with a death benefit and a cash value account. Premiums are flexible within limits. Each month, the cost of insurance and other policy charges are deducted from the cash value.
Its primary purpose is the death benefit. Cash value is a feature of the policy, not a substitute for a retirement plan or an investment account.
You can usually allocate cash value between a fixed account and one or more indexed accounts. In an indexed account, interest may be credited based on the change in an external index over a set period, calculated under the policy's formula.
The policy is not invested in the index. You do not own shares or funds, and index dividends are typically not included in the calculation.
The formula limits how much of an index's gain is credited. A cap sets a maximum rate. A participation rate credits only a percentage of the index change. A spread subtracts a set amount before anything is credited. A policy may use one or several of these.
The insurer can generally change caps, participation rates and spreads over time, within minimums and maximums stated in the contract. What is credited in the future may be lower than what is available today.
Many indexed accounts have a floor, often 0%, meaning index-linked interest for a period will not be negative. The floor applies to the interest credited. It does not stop policy charges.
Charges are deducted whether or not any interest is credited. In a period with 0% credited, the cash value goes down by the amount of those charges. A 0% floor does not mean the policy cannot lose cash value.
The premium needed to keep an IUL in force can change. If credited interest is lower than assumed, or charges increase, more premium may be required than was first planned.
Loans and withdrawals reduce the cash value and the death benefit and may have tax consequences. Loan interest accrues. A policy that is underfunded, or whose loans are not managed carefully, can lapse. A lapse with a loan outstanding may result in taxable income and the loss of coverage.
What you may have heard
When the market goes up you make money. When it goes down you lose nothing.
It is a retirement plan that replaces a 401(k).
Concept names decoded
Names you may have heard for what is on this page. Open one to see what it is and what it does not promise.
This is a planning or marketing description, not a type of policy. It refers to a permanent cash value life insurance policy used together with policy loans. Results depend on policy design, premiums, costs, dividends or crediting where applicable, loan terms and how long the policy stays in force.
Questions to ask
This is a planning or marketing description, not a type of policy. It refers to a permanent cash value life insurance policy used together with policy loans. Results depend on policy design, premiums, costs, dividends or crediting where applicable, loan terms and how long the policy stays in force.
Questions to ask
This is a planning or marketing description, not a type of policy. It refers to a permanent cash value life insurance policy used together with policy loans. Results depend on policy design, premiums, costs, dividends or crediting where applicable, loan terms and how long the policy stays in force.
Questions to ask
04Trade-offs
05Fit
We are an independent brokerage, so we can look at more than one carrier, subject to appointments, product availability, licensing and eligibility. We ask about your situation first and explain the trade-offs. Keeping what you have is a fine outcome.
Important to know
Indexed universal life is permanent life insurance, not a security and not an investment in any index. Interest crediting may be linked to an external index under the policy's formula and is limited by caps, participation rates and spreads. A 0% floor does not protect cash value from policy charges, which continue.
Policy illustrations are not contracts. Illustrated non-guaranteed values are not guarantees and are not predictions of future performance. Any contractual guarantees are backed by the claims-paying ability of the issuing insurer.
Loans and withdrawals reduce cash value and death benefit, may cause the policy to lapse, and may have tax consequences. Modified endowment contract (MEC) rules apply, and a policy that becomes a MEC is taxed differently on distributions. Tax treatment depends on your circumstances and on current law, which can change. Consult qualified tax and legal professionals.
Eligibility and premium depend on age, health, underwriting and carrier criteria. Approval is never guaranteed, and premium requirements may change over the life of the policy.

Next step
Your objective, time horizon and funding comfort range. Sometimes the answer is that a simpler policy does the job.
Or call (501) 476-1468