Life insurance guide
Indexed universal life insurance
Indexed universal life (IUL) is permanent life insurance whose cash value earns interest linked to a market index such as the S&P 500. A floor keeps the cash value from losing money when the index falls, and a cap limits how much it can earn when the index rises.
What it is
IUL combines permanent life insurance with cash value growth linked to a stock market index like the S&P 500. Unlike investing directly, an IUL typically gives you a floor (often 0–1%) so you don't lose money in down markets, and a cap that limits your upside in good ones.
You can adjust how much you pay over time and change the death benefit as your needs change.
In short: market-linked gains without market losses, in exchange for a ceiling on how high you can go.
How it works
How an IUL works.
Index-linked growth
Cash value is credited based on an index's performance, with protection against losses.
A floor on losses
In a year the index falls, the cash value typically isn't credited a loss.
Flexible premiums
Pay more or less over time as your finances change, within the policy's limits.
Living benefits
Use the cash value through loans or withdrawals for retirement income or emergencies.
Who it suits
Who it suits.
Long time horizons
IUL works best as a long-term strategy, typically 10 years or more.
Savers who've used other accounts
People who've filled other tax-advantaged accounts and want more room to save.
People who want flexibility
Premiums and death benefit can change as income and needs change.
Lifelong coverage needs
A death benefit that lasts for life, with cash value as a second use.
Taxes and retirement
How the tax treatment works.
Income tax-free death benefit
Beneficiaries generally receive the death benefit income tax-free, as with other life insurance.
Tax-deferred growth
Gains aren't taxed while they build inside the policy.
Policy loans
Cash value accessed through policy loans is generally not taxed as income when the policy is structured and kept in force correctly.
No contribution limits
Unlike IRAs and 401(k)s, there's no annual contribution limit, though IRS guidelines limit how much a policy can hold.
Cost
What it costs to hold.
An IUL carries charges: the cost of insurance, administrative fees and surrender charges in the early years. Those charges come out of the cash value, which is why how the policy is structured matters as much as the index.
Your premium depends on your age, health, the death benefit and how much cash value you aim to build.
Coverage and pricing depend on underwriting, eligibility, state availability, and carrier approval.
The trade-offs
What to know going in.
An IUL is a useful tool, not a free lunch.
| Consideration | What it means |
|---|---|
| Capped returns | Your gains are limited by cap rates set by the insurer, typically 8–12%. |
| Complexity | IUL policies are more involved than term life and need to be understood before you buy. |
| Fees and charges | The policy carries costs: mortality charges, administrative fees and surrender charges. |
| Long-term commitment | IUL works best as a long-term strategy, typically 10+ years. |
Questions and answers
What people ask us.
Can I lose money in an IUL?
Not from index drops. The floor (often 0–1%) protects the cash value in down years. Policy fees and charges still apply, which is why structuring it correctly matters.
Why is there a cap on gains?
It's the trade for the floor. The insurer caps your upside (often 8–12%) in exchange for shielding you from losses. You give up the best market years to avoid the worst ones.
How can retirement income from an IUL be tax-free?
You access the cash value through policy loans, which are generally not taxed as income. That only holds if the policy is structured correctly and stays in force, so we plan it from the start.
Is an IUL right for everyone?
No. It works best for people with a long horizon who have used other tax-advantaged accounts or want flexible access to cash value. If it doesn't fit, we'll say so.
Related guides
Read next.
Life insurance overview
The main types side by side, and the job each one is designed to do.
Read the guideWhole life insurance
Coverage that never expires, with a fixed premium and guaranteed cash value.
Read the guideRetirement planning
How income needs, annuities and insurance fit into one plan for the years after work.
Read the guideFind out whether an IUL fits.
Thirty minutes on your goals, the policy mechanics and whether an illustration is worth running.
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