An IUL is an insurance policy, not a savings account, but it does build cash value you can borrow against

IUL stands for Indexed Universal Life insurance. It is a permanent life insurance policy that combines a death benefit (the money paid to your beneficiaries when you die) with a cash value component that grows based on the performance of a stock market index, usually the S&P 500. The cash value is separate from the death benefit — you can borrow from it while you are alive, but it is not a bank account and does not work like one.

The key difference from a regular savings account: an insurance company owns the policy, sets the rules for how the cash value grows, and charges fees and insurance costs that reduce what you actually accumulate. You do not earn interest the way a bank pays it. Instead, the insurance company credits your cash value based on how a chosen index performs, within limits they set.

People often consider IULs because they offer a death benefit (which a savings account does not) and the cash value grows tax-deferred (meaning you do not pay taxes on the growth each year). But the structure is complex, the fees are not always transparent, and the growth is capped — you will not earn the full market return even in years the index performs well.

Key Takeaways

  • An IUL is a life insurance policy with a cash value component, not a bank account or investment account.
  • The cash value grows based on a stock market index (usually the S&P 500) but within a cap set by the insurance company, typically between 10% and 12% per year.
  • You can borrow against the cash value while alive, but loans reduce the death benefit and carry interest charges.
  • The policy charges insurance costs and administrative fees that reduce your cash value, and these costs increase as you age.
  • The growth is tax-deferred, meaning you do not pay taxes on gains each year, but you will owe taxes if you withdraw cash above what you paid in premiums.

How the cash value grows and what limits it

When you pay a premium into an IUL, the insurance company splits it into two parts: one portion goes toward the insurance cost (the death benefit), and the rest goes into the cash value account. The cash value is then credited based on the performance of an index you choose — most commonly the S&P 500, but some policies offer other options like the Nasdaq or a bond index.

Here is where the cap matters: if the S&P 500 rises 20% in a year, your cash value does not rise 20%. Instead, the insurance company credits you a percentage of that gain, up to a maximum (the cap). That cap is typically between 10% and 12%, though it varies by policy and can change year to year. If the index falls, most IULs have a floor — usually 0% or 1% — meaning your cash value does not decline, but it also does not grow that year.

The insurance company keeps the difference between the index performance and what they credit to you. In a strong market year, that gap is significant. In a down year, the floor protects you, but you are also not building value. Over time, this structure tends to produce returns lower than investing directly in an index fund, even after accounting for taxes.

Fees and costs that reduce your cash value

An IUL is not a no-cost product. The insurance company charges several things against your cash value: the cost of insurance (which increases as you age), administrative fees, and sometimes a surrender charge if you close the policy early. These costs are deducted from your cash value each month, and they are not always straightforward to see in the policy documents.

The cost of insurance is the biggest variable. When you are young and the policy is new, it is low. As you age, the cost of insurance rises — sometimes significantly — because the death benefit becomes more expensive to insure. If you live into your 70s or 80s, the cost of insurance can consume most or all of the cash value growth, leaving you with little accumulation and a large premium bill to keep the policy in force.

Surrender charges explore if you cancel the policy within the first 10 to 15 years. These charges can be substantial — sometimes 7% to 10% of the cash value — and they are designed to discourage early withdrawal. After the surrender period ends, you can usually access your cash value without penalty, but the insurance costs remain.

Borrowing against the cash value while you are alive

One feature that appeals to IUL owners is the ability to borrow against the cash value without triggering a taxable event (as long as the loan does not exceed the amount you paid in premiums). You can take a policy loan at any time, and the insurance company charges interest on that loan — typically 6% to 8%, depending on the policy.

The catch: when you borrow, the cash value that secures the loan is no longer earning credits based on the index. So if you borrow $50,000 and the market rises 10% that year, you miss out on the growth that $50,000 would have earned. Additionally, the loan reduces your death benefit dollar-for-dollar. If you die with an outstanding loan, your beneficiaries receive the death benefit minus what you borrowed plus accrued interest.

If you do not repay the loan, the interest compounds and can eventually consume the entire cash value, causing the policy to lapse. At that point, you lose the death benefit and may owe taxes on the unpaid loan amount.

Tax treatment of cash value and withdrawals

The cash value grows tax-deferred, meaning you do not file taxes on the annual growth the way you would with a regular investment account. This is a genuine advantage over a taxable brokerage account. However, the tax benefit is limited by the fees and caps that reduce your actual growth.

If you withdraw cash from the policy (rather than borrow), the withdrawal is tax-free up to the amount of premiums you paid in. Anything above that is taxable as ordinary income in the year you withdraw it. For example, if you paid $100,000 in premiums over 10 years and the cash value is now $120,000, you can withdraw $100,000 tax-free, but the $20,000 gain is taxable.

If you surrender the entire policy (cancel it), you owe taxes on any gain above your total premiums in that year. This can create a large tax bill if the cash value has grown significantly, and it is one reason people sometimes hold IULs longer than they otherwise would — to spread the taxable gain across multiple years through loans rather than a lump-sum withdrawal.

IUL versus other ways to build cash value

An IUL is one option for combining insurance with savings, but it is not the only one. A traditional whole life policy also builds cash value and offers a death benefit, but the cash value grows at a fixed rate set by the insurance company (typically 3% to 5%), not tied to market performance. Whole life is more predictable but offers lower growth potential.

A term life policy is pure insurance — it covers you for a set period (10, 20, or 30 years) and has no cash value. It is much cheaper than an IUL or whole life, but when the term ends, the coverage ends. If you want both insurance and savings, term life plus a separate investment account (like a brokerage account or index fund) often produces better results than an IUL, because you avoid the insurance company's fees and caps.

The choice depends on your goals. If you want permanent coverage and are willing to accept lower growth in exchange for tax deferral and the discipline of a policy structure, an IUL can work. If you want the lowest cost insurance, term life is better. If you want the highest growth potential, a separate investment account beats an IUL because there is no cap and no insurance costs.

What happens to an IUL if you stop paying premiums

An IUL requires ongoing premium payments to stay in force. If you miss a payment, the insurance company will use the cash value to cover the cost of insurance and administrative fees. As long as the cash value is large enough, the policy continues. But if the cash value runs out before you pay the next premium, the policy lapses and the death benefit ends.

This is different from a term policy, which straightforward expires at the end of the term. With an IUL, you can have a lapsed policy years after you stopped paying, which means you lose coverage without realizing it. Some policies allow you to reinstate them within a certain period if you pay back premiums and pass a health exam, but reinstatement is not may provide.

Frequently Asked Questions

Can I access my IUL cash value without paying taxes?

You can withdraw up to the amount of premiums you paid in without owing taxes. Anything above that is taxable as ordinary income. Borrowing against the cash value is also tax-free, but the loan accrues interest and reduces your death benefit.

What is the difference between an IUL and a regular investment account?

An IUL is an insurance product with a capped return (usually 10% to 12% per year maximum) and ongoing insurance costs. An investment account has no cap and no insurance costs, but gains are taxed annually. An IUL offers tax deferral but lower growth potential due to fees and caps.

Is an IUL a good way to save for retirement?

An IUL can be part of a retirement strategy, but it is not designed primarily as a retirement savings vehicle. The insurance costs increase with age, which can reduce cash value growth in your 60s and 70s. A 401(k) or IRA often produces better retirement outcomes because they have no insurance costs and higher contribution limits.

What happens if I need the money before I die?

You can borrow against the cash value or withdraw it, but both options have costs. Borrowing charges interest and reduces your death benefit. Withdrawals above your premiums are taxable. If you need access to money, a regular savings account or investment account is simpler and usually cheaper.

Can the insurance company change the cap on my IUL?

Yes. The cap can change year to year based on market conditions and the insurance company's pricing. Your policy documents will specify how often and under what conditions the cap can be adjusted. This is one reason IUL returns are less predictable than whole life or fixed-rate products.