What Is a Max Funded IUL? (And How Does It Work?)

A max-funded indexed universal life (IUL) policy is designed to build cash value as quickly as IRS rules allow.

Instead of buying the largest possible death benefit, the policy keeps the death benefit at the minimum amount required to qualify as life insurance. That lets more of each premium go toward cash value.

To keep its tax advantages, premiums can't exceed the IRS limit. Going over that limit turns the policy into a Modified Endowment Contract (MEC), which changes how withdrawals and loans are taxed.

The policy's cash value is tied to a market index, such as the S&P 500. Most IULs include:

• A 0% floor: Your cash value won't lose value because of market declines.
• A cap: Your returns are limited in strong market years.

Many people use max-funded IULs to supplement retirement income because they can access cash value through policy loans, which are generally tax-free if your policy remains active until you die.

The IRS doesn't publish a table showing the maximum you can contribute to an IUL. Instead, the limit is calculated for each policy based on factors like your age, health and, most importantly, your death benefit.

A larger death benefit lets you contribute more each year before the policy becomes a Modified Endowment Contract (MEC).

Example: If a policy has a $500,000 death benefit, you might be able to contribute $15,000 per year before reaching the MEC limit. A similar policy with a $1 million death benefit could allow $30,000 per year. Actual limits vary by insurer and policy.

Some people intentionally start with a larger death benefit than they need so they can contribute more to the policy each year. As the policy builds cash value, they may use a death benefit design that helps keep insurance costs lower over time while preserving the policy's tax advantages.

If you contribute more than the IRS allows, your policy becomes a Modified Endowment Contract (MEC). The policy still provides life insurance, but it loses many of the tax benefits that make max-funded IULs attractive.

The biggest changes are:

• Withdrawals and policy loans may become taxable.
• If you're under age 59½, you may also owe a 10% IRS penalty on taxable distributions.

Once a policy becomes a MEC, it stays a MEC permanently. You can't undo it by withdrawing the extra premium later. To help prevent this, insurers usually warn you before accepting a payment that would push your policy over the MEC limit, giving you the chance to reduce your contribution.

Three features determine how much interest the cash value in your max funded IUL can earn each year:

• Floor: The minimum credit rate, usually 0%. In years when the index falls, the policy doesn't lose cash value to market declines. Policy charges like cost of insurance and administrative fees still apply, but the index contributes no loss.
• Cap: The maximum credit rate for a given crediting period. S&P 500 annual point-to-point caps have ranged from 8% to 12% across major carriers in recent years, though the specific cap depends on the insurer and interest rate environment at the time. In a year when the index returns 26%, a 10% cap means 10% is credited. In exchange for downside protection through the floor, you give up a portion of the market's upside in strong years.
• Participation rate: The percentage of index gains credited before the cap. A 100% participation rate with a 10% cap means all gains up to 10% are credited in full. Some carriers post participation rates above 100%, usually paired with a lower cap or a spread fee that acts as a cost-of-strategy charge.

These features are declared by the insurer and can change for new premium allocations. Review current declared rates before committing to a crediting strategy.

A max-funded IUL can provide additional tax-advantaged retirement savings after you've made the most of traditional retirement accounts. It isn't a replacement for a 401(k), especially if your employer offers matching contributions, or a Roth IRA, which doesn’t have insurance costs. Here's how the three options compare:

The max-funded IUL and Roth IRA both use after-tax dollars and allow tax-free access in retirement. The IUL's advantage is no contribution ceiling, no income restrictions and downside protection. The Roth IRA's advantage is no internal costs and full market exposure. A 401(k) with an employer match should be funded first, before either.

A max-funded IUL is a good way for high earners to save more for retirement after they've maxed out their 401(k) and, if eligible, their Roth IRA. It offers tax-deferred cash value growth, protection from market losses and generally tax-free access to cash through policy loans.

It's not the right choice for everyone. These policies work best if you can keep them for 15 years or more, make consistent premium payments and choose a low-cost policy from a financially strong insurer.

A max-funded IUL should be used as the third step in your retirement savings plan. First contribute enough to your 401(k) to get your employer match, then max out your Roth IRA if you're eligible and finally consider a max-funded IUL if you still want to save more for retirement.