Whole Life Insurance vs. Indexed Universal Life Insurance (IUL)

June 2024 · 8 minute read

Whole life insurance vs. indexed universal life insurance

Whole life insurance and indexed universal life insurance (IUL) are two types of permanent life insurance that will cover you for the rest of your life and come with a cash value account you can borrow from while you’re alive. But there are some key differences between both to consider. 

With a whole life insurance policy, your cash value will grow at a fixed rate from the time your coverage begins until you die. With an IUL policy, your cash value account’s growth will be attached to a stock market index. If the stock grows, your cash value account will grow accordingly. This means IUL has a higher growth potential — but also a higher risk. IUL policies also require more involvement because you can’t let the cash value account fall below zero if the stock value drops.

Whole life vs. IUL: An overview

Whole life insurance

Indexed universal life insurance (IUL)

Policy duration

Permanent

Permanent

Death benefit

Guaranteed amount

Exact amount not guaranteed

Cash value accumulation

Grows at a fixed rate set by your insurer

Grows based on a market index

Premiums

Fixed 

Variable

Cost

More expensive than term life insurance

More expensive than whole life insurance

What is whole life insurance?

Whole life insurance is a type of permanent life insurance that lasts for your entire life. You’ll make premium payments, and no matter when you die, your loved ones will receive a guaranteed payout — known as the death benefit. Whole life also includes a tax-deferred savings account from which you can borrow cash while you’re alive. This cash value earns interest at a fixed rate set by the insurer.

Whole life insurance is significantly more expensive than a comparable term life insurance policy because it comes with a cash value account and lifelong coverage. Whole life policies are less expensive than an IUL policy but also offer less flexibility. 

Learn more about term vs. whole life insurance

Pros & cons

Pros

Cons

What is indexed universal life insurance (IUL)?

Indexed universal life insurance (IUL) is a type of permanent life insurance policy that will never expire. As long as you make your payments, your policy will remain active. IUL policies have a cash value account that earns interest based on a stock market index, such as the S&P 500. With IUL, you can use the cash value to cover your premiums and even adjust your death benefit amount.

IUL policies can offer higher growth potential than other permanent insurance options, but they’re also more expensive and harder to manage. This type of policy is best for high-net-worth individuals looking to diversify their investments and the means to monitor a more complex life policy. 

Pros & cons

Pros

Cons

What are the main differences between IUL & whole life insurance?

While whole life insurance and IUL both offer lifelong coverage, there are strong differences between the two types of policies to consider before you purchase either. 

Death benefit

With a whole life insurance policy, the death benefit is fixed. The only way the insurer would reduce the death benefit amount to pay your beneficiary is if you take out a loan against the cash value and pass away before you can pay it back. In this case, the insurer will deduct the amount owed from the total death benefit and leave your loved ones the rest. 

With an IUL, you have some flexibility with the death benefit. If your cash value account grows enough, you can add this amount to the death benefit total and leave your beneficiary more than the amount you initially agreed upon with the insurer. 

Cash value accumulation

With a whole life policy, your cash value amount will grow at a fixed rate determined in your policy. It will usually be a small, yet consistent rate of growth. 

The growth for the cash value of an IUL policy is attached to a stock market index. If the stock performs well, your cash value will grow faster, and if the stock doesn’t perform well, your cash value will grow more slowly — or perhaps not at all. If you feel more comfortable navigating the stock market, an IUL policy could be a better fit for you. 

Cost & premiums

Both types of policies will cost significantly more than a comparable term life insurance policy, but IULs will tend to be more expensive than a whole life insurance policy. However, you can use the flexibility of an IUL policy in your favor to offset its cost without the risk of reducing the death benefit. 

With an IUL, as the cash value grows, you can use it to pay your premiums. But this does require more administrative oversight and a hands-on investment approach, as you’ll need to monitor the total of the cash value to make sure it doesn’t drop below zero. 

Who should consider whole life insurance?

Whole life insurance is best for people who want a guaranteed death benefit and are able to commit to paying the required premiums, usually for the rest of their lives. This often includes people who have lifelong financial obligations, like an adult dependent or large amounts of debt. 

Who should consider indexed universal life insurance?

IUL is best for people who are savvy enough to take advantage of the flexibility this policy will offer and able to pay the higher premiums. With an IUL policy, you’ll need to be able to monitor the amount of your cash value and potentially adjust the premiums you pay as the cash value fluctuates. 

How to decide between whole life & IUL

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