Is an IUL better than a 401(k)?

Not as a replacement. For nearly everyone the 401(k) is the better first dollar, because an employer match is an immediate return on your own contribution that no insurance policy can reproduce, and because plan costs are far lower than the premium load, per-thousand charges and rising cost of insurance inside a life insurance policy. An indexed universal life policy answers different questions: it has no income cap on who may fund it, no required minimum distributions, and it pays a death benefit that is generally income-tax-free to a beneficiary under IRC 101(a). Those are real advantages, and each of them costs something. The honest comparison is not IUL versus 401(k); it is what you do with the dollars after the 401(k) match and the tax-advantaged accounts are full.

What is the 401(k) contribution limit for 2026?

For 2026 the employee elective deferral limit is $24,500. The catch-up contribution for participants aged 50 and over is $8,000, and participants who reach age 60 through 63 during the year may contribute a higher catch-up of $11,250 instead. The overall limit on all contributions to one participant's account, employee plus employer, is $72,000 for 2026, not counting catch-up contributions. Beginning in 2026, a participant whose prior-year wages with the plan sponsor exceeded $150,000 must make catch-up contributions on a Roth basis if the plan offers a Roth feature. All of these figures are published by the IRS and change most years.

Does an IUL have a contribution limit?

There is no IRS dollar limit the way there is on a 401(k), but it is wrong to say an IUL has no limit. Two rules bind. IRC 7702 caps how much premium a contract can accept relative to its death benefit before it stops qualifying as life insurance at all, so the amount you can fund is set by the size of the death benefit you buy and can medically qualify for. IRC 7702A's seven-pay test then caps how fast you may pay it in: exceed that and the contract becomes a modified endowment contract, loans and withdrawals are taxed income-first, and the tax treatment the whole strategy depends on is gone permanently. Only the carrier can compute those limits for your age, health class and face amount.

Are IUL withdrawals really tax-free?

Not in the same sense a Roth distribution is. A qualified Roth distribution is tax-free by statute. With life insurance, withdrawals up to your basis and properly structured policy loans are generally not included in income while the contract stays in force and is not a modified endowment contract, under IRC 72(e). Those are conditions, not guarantees. If the policy lapses or is surrendered with a loan outstanding, the gain can become taxable income in a year when you receive little or no cash, which IRS Publication 525 describes under surrender of a policy for cash. Loans also accrue interest and reduce the death benefit. Anyone who says tax-free without saying non-MEC and in force is leaving out the part that matters.

Can I have both an IUL and a 401(k)?

Yes, and for the people an IUL actually suits, that is the normal arrangement. There is no interaction between the two in the tax code: funding a life insurance policy does not reduce what you may defer into a 401(k), and 401(k) participation does not limit the policy. The sensible sequence is to capture the full employer match first, clear high-interest debt and an emergency fund, use the IRA or Roth IRA space you qualify for, and only then look at a permanent policy with money you are confident you can commit for decades. Reversing that order is the most common and most expensive mistake in this category.

At what age do 401(k) required minimum distributions start?

Age 73 under current law. The IRS states that you generally must start taking withdrawals from a traditional IRA, SEP IRA, SIMPLE IRA and retirement plan accounts when you reach 73, with the first distribution due by April 1 of the following year. Failing to take the full amount can trigger an excise tax of 25 percent of the shortfall, reduced to 10 percent if corrected within two years. Two exceptions matter here: designated Roth accounts inside a 401(k) or 403(b) are no longer subject to RMDs during the owner's lifetime, and life insurance cash value is not a qualified plan and has no RMD at all.

What are the real costs inside an IUL?

A premium load taken off each payment, a monthly cost of insurance that rises with your attained age, per-thousand and flat administrative charges, rider charges, and surrender charges in the early policy years. None of this appears as a single expense ratio you can compare with a fund, which is precisely why it is easy to miss. A 401(k) participant, by contrast, receives an annual fee disclosure from the plan under Department of Labor rules. Ask any agent for the policy's expense pages and the guaranteed column of the illustration, not just the projected column.

When should you not buy an IUL?

When you are leaving an employer match on the table, when you carry high-interest debt or lack an emergency fund, when your income is variable enough that you might have to stop paying premiums, when you need the money back inside roughly a decade, when you do not actually need permanent death benefit, or when the only reason you are considering it is that someone showed you an illustration with an attractive projected rate. Illustrated rates on indexed products are constrained by NAIC Actuarial Guideline 49-A, but a constrained projection is still a projection. If any of those describe you, an IUL is the wrong tool regardless of how good the sales presentation was.

Comparison guide

IUL vs 401(k): Complete Comparison Guide (2026)

For almost everyone, the 401(k) comes first: an employer match is an immediate return on your own money that no insurance policy can reproduce, and a 401(k) costs far less to run. Indexed universal life is a supplement, for people who have already filled their 401(k) and IRA space and need permanent death benefit.

That is the short answer, and it does not change much from year to year. What follows is the long one — every dimension on which the two actually differ, what each difference costs, and the specific situations in which each vehicle is the wrong choice. All tax figures on this page are the amounts the IRS published for the 2026 tax year.

These two products do not answer the same question

A 401(k) is a tax wrapper around investments you choose. An indexed universal life policy is a life insurance contract that happens to accumulate cash value. Comparing them as if they were two brands of the same thing is how people end up with the wrong one, so it is worth being precise about what each is built to do before comparing features.

The 401(k) exists to move money into retirement with a tax advantage and, in most plans, with an employer subsidy attached. Its mechanics are simple, its costs are disclosed, and there is no way for the account to self-destruct. Its weaknesses are equally clear: the money is taxed as ordinary income when a traditional balance comes out, it is subject to required minimum distributions at 73, and getting at it before 59½ generally costs an extra 10 percent.

An IUL exists to pay a death benefit. The cash value is a by-product of pre-funding that death benefit, and the retirement-income use case is built by borrowing against that cash value. That construction is what produces its genuine advantages — no income cap, no RMD, a death benefit — and also every one of its risks, because a life insurance contract can lapse and a 401(k) cannot.

Both of these things can be true at once: the 401(k) is the correct default for the large majority of savers, and the IUL solves a real problem for a small, identifiable group. A page that concludes otherwise in either direction is selling something.

IUL vs 401(k): the full side-by-side

Every row below is a dimension on which the two genuinely differ. Where a row favours one side, it says so. Figures are for the 2026 tax year and come from the IRS announcement of 2026 retirement plan limits and the IRS cost-of-living adjustment table.

Indexed universal life insurance compared with a 401(k) plan, 2026 tax year.
Feature	Indexed universal life (IUL)	401(k)
What it is	A permanent life insurance contract with a cash value account credited by reference to an index	An employer-sponsored qualified retirement plan holding investments you select from a menu
Tax on money going in	After-tax. No deduction.	Pre-tax for traditional deferrals (reduces this year's taxable income); after-tax for designated Roth deferrals
Tax on growth	No annual taxation of cash value inside a contract that qualifies under IRC §7702	No annual taxation inside the plan
Tax on money coming out	Withdrawals to basis and policy loans are generally not included in income while the contract is in force and is not a MEC (IRC §72(e)). A lapse or surrender with a loan outstanding can create taxable income.	Traditional: fully taxable as ordinary income. Designated Roth: qualified distributions are tax-free by statute.
2026 contribution limit	No IRS dollar limit — but IRC §7702 caps premium relative to death benefit, and the §7702A seven-pay test caps how fast you may fund it	$24,500 employee deferral; +$8,000 catch-up at 50+, or $11,250 at ages 60–63; $72,000 all-sources limit
Income limit to participate	None. Funding is limited by underwriting and by the death benefit you buy, not by your income.	None, though only the first $360,000 of compensation counts for plan purposes in 2026
Employer match	None. There is no third party adding money.	Frequently offered. This is the single strongest argument for the 401(k) and an IUL has no equivalent.
Required minimum distributions	None — a life insurance contract is not a qualified plan	Age 73 for traditional balances. Designated Roth accounts inside the plan no longer have lifetime RMDs.
Access before age 59½	Policy loans and withdrawals at any age; no §72(t) additional tax on a non-MEC contract. Loans accrue interest and reduce the death benefit.	10% additional tax on the taxable portion unless an exception applies; a plan loan, if the plan offers one, is capped at the lesser of $50,000 or 50% of the vested balance
Downside protection	A floor on the index credit, commonly 0%. Policy charges are still deducted in a zero-credit year, so cash value can fall.	None. You hold the market risk of whatever you select, including the risk of a large drawdown near retirement.
Upside participation	Limited by a cap, participation rate or spread set by the carrier and changeable within contractual guarantees. Index crediting is normally based on price movement, so index dividends are generally not included.	Uncapped — you receive the full return of the funds you choose, minus their expenses
Internal cost	Premium load, monthly cost of insurance rising with attained age, per-thousand and administrative charges, rider charges, early surrender charges	Plan administrative fees plus fund expense ratios, disclosed to participants annually under Department of Labor rules
Death benefit	Yes. Generally excluded from the beneficiary's gross income under IRC §101(a), though the proceeds may still be in your taxable estate.	Whatever balance remains. A non-spouse beneficiary of a traditional balance pays ordinary income tax on distributions and generally must empty the account within 10 years.
Can it fail?	Yes. Underfunding, rising cost of insurance, weak index credits or an unpaid loan can lapse the policy — and a lapse with a loan outstanding is a taxable event.	No lapse mechanism. The balance can fall with the market, but the account does not terminate.
Creditor protection	Varies by state statute	ERISA plan benefits are generally protected by the anti-alienation rule at 29 U.S.C. §1056(d)
Portability	The contract is yours regardless of employment	Yours, but tied to a plan; rollover to an IRA or a new employer's plan on separation
Complexity	High. Requires medical underwriting, a design decision, and ongoing funding discipline for decades.	Low. Choose a deferral percentage and a fund.
What you must monitor	In-force illustrations, actual charges, loan balances, and whether the policy is still on track	Allocation and fees

Where the 401(k) genuinely wins

The 401(k) wins on four things that are not close: the employer match, cost, simplicity, and the fact that it cannot fail. None of these are marketing points. They are structural, and no policy design gets around them.

The employer match is an immediate return an IUL cannot touch

If your employer matches a portion of what you contribute, that match is added to your account the moment you contribute — before any investment return, before any market risk, and before any waiting period beyond vesting. There is no product in the life insurance market that adds somebody else’s money to your balance for making a payment. Any comparison that reaches the conclusion “fund the policy instead of the match” has gone wrong somewhere. Get the full match first, every year, without exception.

Cost, and the fact that you can see it

A 401(k) participant pays plan administrative fees plus the expense ratios of the funds they hold, and receives an annual disclosure of those fees under Department of Labor rules — the DOL publishes a consumer guide to 401(k) plan fees for exactly this reason. An indexed universal life policy carries a premium load off every payment, a monthly cost of insurance that rises with your attained age, per-thousand and administrative charges, rider charges, and surrender charges in the early years. Those are real costs and they are not expressed as one comparable number anywhere on the illustration. The gap is large, it is permanent, and it is the reason the policy needs a long horizon before it looks good.

Simplicity, and no lapse risk

A 401(k) needs one decision a year. An IUL needs a design that is right at issue, premiums paid on schedule for decades, periodic in-force illustrations to confirm it is still on track, and careful management of any loan balance. If you stop funding a 401(k), the balance simply stops growing from new contributions. If you stop funding an IUL, the policy may erode and eventually lapse — and if it lapses with a loan outstanding, you can owe income tax on a gain you never received in cash (see IRS Publication 525, “Surrender of policy for cash”).

The deduction is worth the most to exactly the people IUL is sold to

A traditional 401(k) deferral reduces this year’s taxable income. The higher your marginal rate, the more that deduction is worth in cash today — which is an argument for filling the 401(k) that gets stronger, not weaker, as income rises. The counter-argument is that you are deferring tax to an unknown future rate, and that is a legitimate reason to want tax diversification. It is not a reason to skip the deduction.

Where an IUL genuinely differs — and what each difference costs

Four differences are real and none of them are free. An IUL has no income cap on who may fund it, no IRS contribution limit in the 401(k) sense, no required minimum distributions, and a death benefit. Each one arrives with a price attached, and the price is usually left out of the pitch.

No income cap on funding — but the MEC limit binds

Nobody is disqualified from buying life insurance because they earn too much. That is a genuine structural difference from the Roth IRA, and it matters for high-income households in South Florida and everywhere else. What is not true is the claim that an IUL has no limit at all.

Two provisions bind. Under IRC §7702, a contract only qualifies as life insurance if premium stays within limits set relative to the death benefit — so the amount you can put in is capped by the size of the policy you buy and can medically qualify for, not by your appetite. Under IRC §7702A, paying too much too quickly fails the seven-pay test and turns the contract into a modified endowment contract. A MEC is still life insurance and the death benefit is still generally income-tax-free, but distributions and loans are taxed income-first under IRC §72(e), with a possible additional 10 percent tax before 59½ — which removes the entire reason the policy was being used for retirement income. MEC status is permanent.

The practical consequence: “unlimited contributions” means “the limit is set by underwriting and by a seven-pay figure only the carrier can compute for your age and health class,” and a high earner who wants to fund a large amount has to buy a correspondingly large death benefit to hold it — with the cost of insurance that comes with it.

No required minimum distributions

The IRS states that you generally must begin withdrawals from traditional IRAs and retirement plan accounts at age 73, with an excise tax of 25 percent on any shortfall, reduced to 10 percent if corrected within two years. Life insurance cash value is not a qualified plan and has no RMD. That is a real planning advantage for someone who does not need the income and wants to control the timing of their taxable events.

Two caveats keep this honest. First, designated Roth accounts inside a 401(k) or 403(b) no longer have lifetime RMDs either, so the RMD argument does not distinguish an IUL from a Roth 401(k) at all. Second, the absence of a mandatory withdrawal is not the same as free access: drawing income from a policy means taking loans, and those loans accrue interest and must be managed so the contract never lapses.

A death benefit — the thing a 401(k) is not

A 401(k) leaves your heirs whatever balance remains, taxed to a non-spouse beneficiary as ordinary income as it comes out, and generally emptied within 10 years under the post-SECURE Act rules. A life insurance death benefit is a defined amount that exists from day one, and the IRS states that life insurance proceeds received as a beneficiary due to the death of the insured generally are not includable in gross income, consistent with IRC §101(a).

Two qualifications. Income-tax-free is not estate-tax-free: proceeds can still be included in your taxable estate if you hold incidents of ownership, which is why large policies are often owned by a trust — see the IRS page on estate and gift tax for the current basic exclusion amount, which is $15,000,000 per decedent for 2026. And every dollar of policy loan you take in retirement reduces the death benefit your heirs receive. You cannot spend the cash value and leave the full face amount.

A floor against index losses — and the cap that pays for it

An indexed account credits interest by reference to an index, subject to a floor that is commonly zero. In a year the index falls, the index credit is not negative. That is a genuine feature and it is why the product appeals to people who dislike sequence-of-returns risk.

What the floor does not do is protect your account value. Policy charges — cost of insurance, administrative charges, rider charges — are deducted whether or not any interest is credited, so a zero-credit year is a losing year for cash value. The floor is also paid for: the carrier funds it by limiting your upside through a cap, a participation rate or a spread, and because index crediting is normally based on price movement rather than total return. Those parameters are set by the carrier and can change within the contract’s guaranteed limits.

None of that can be settled by looking at an illustration. Illustrated rates on index-linked policies are constrained by NAIC Actuarial Guideline XLIX-A — AG 49-A, which supersedes the 2015 AG 49 for policies with index-based interest sold on or after December 14, 2020, and which was tightened in 2023 and revised again for 2026 to enhance consumer-protection disclosures. A constrained illustration is still an illustration. It is a projection, not a promise, and the guaranteed column is the one that tells you what the carrier is actually obligated to do.

“Tax-free” means two different things here

This is the single most abused claim in this product category, so it is worth stating carefully. A qualified distribution from a designated Roth account is tax-free as a matter of statute — you meet the conditions, and the money is not taxed. Life insurance is different: it is not taxed provided a set of conditions continues to hold, and you are responsible for keeping them true for the rest of your life.

The conditions are: the contract must not be a modified endowment contract; withdrawals must stay within basis, or the distribution must be structured as a policy loan; and the policy must remain in force until death. Under IRC §72(e), distributions from a non-MEC life insurance contract are treated basis-first, which is what makes the first layer of withdrawals untaxed; a loan is not a distribution at all while the contract is in force.

Break any of those and the treatment changes. Lapse or surrender with a loan outstanding and the gain becomes taxable income in that year even though you receive little or no cash. Fund too fast and §7702A makes the contract a MEC, after which loans are taxable to the extent of gain. This is why the phrase “tax-free retirement income” should never appear without the words non-MEC and in force next to it, and why current law is a real qualifier: the treatment is a feature of the tax code as it stands, not a contractual guarantee from the insurer.

The 2026 numbers you are actually comparing

These are the figures that decide whether an IUL is even a question for you. If your 401(k) is not full, the answer is usually no. All amounts are for the 2026 tax year.

401(k) employee deferral limit: $24,500. Up from $23,500 in 2025 (irs.gov).
Catch-up at age 50+: $8,000. Participants who reach age 60 through 63 during the year may use a higher catch-up of $11,250 instead (irs.gov).
All-sources limit on one participant’s account: $72,000, employee plus employer, excluding catch-up (IRC §415(c); irs.gov COLA table).
Compensation counted for plan purposes: $360,000 (IRC §401(a)(17)), which is one reason high earners run out of qualified-plan room early.
Roth catch-up requirement begins in 2026. A participant whose prior-year wages with the plan sponsor exceeded $150,000 must make catch-up contributions on a Roth basis if the plan has a Roth feature (irs.gov; final regulations).
IRA and Roth IRA limit: $7,500, plus a $1,100 catch-up at 50+ (irs.gov). Roth IRA eligibility phases out at $153,000–$168,000 for single filers and $242,000–$252,000 for married filing jointly — see the IUL vs Roth IRA comparison for what that means if you are over the line.
RMD age: 73, with a 25 percent excise tax on a shortfall, reduced to 10 percent if corrected within two years (irs.gov).
Early access: a 10 percent additional tax on the taxable portion of a distribution before 59½ unless an exception applies (irs.gov Topic 558). A plan loan, where offered, is capped at the lesser of $50,000 or 50 percent of the vested balance (irs.gov).

Notice what this list implies. A household that can defer $24,500 each, capture a match, and fund IRAs has a large amount of tax-advantaged room to fill before any of the arguments for permanent life insurance become relevant. The people for whom an IUL is a serious question are the ones who exhaust all of it and still have surplus cash flow left over.

Who each one is right for

The 401(k) is right for you if

Your employer matches anything at all — fund to the full match before anything else.
You want a current-year deduction and you are in a high marginal bracket now.
You want the lowest-cost, simplest possible way to invest for retirement.
You value uncapped market participation and are willing to hold the risk that comes with it.
You want flexibility to stop, restart or change contributions without damaging anything.
You are still building an emergency fund or paying down high-interest debt.

An IUL is worth a conversation if

You are already maxing the 401(k), capturing the full match, and funding an IRA or backdoor Roth, and you still have surplus cash flow.
You have an actual, durable need for permanent death benefit — a business continuation agreement, a special-needs dependent, an illiquid estate, a legacy goal.
Your income is high enough and stable enough that you can commit premium for decades without strain, through a bad year.
You are medically insurable at a reasonable class. Underwriting drives cost of insurance, which drives everything else.
You want a portion of retirement income that is not exposed to future ordinary-income rates, and you understand that this depends on current law.
You will read the guaranteed column of the illustration, not just the projected one.

When NOT to use an IUL

This section matters more than any other on the page. An IUL bought by the wrong person is not a mediocre outcome, it is a loss — surrender in the early years typically returns less than the premiums paid. Do not buy one if any of the following is true.

You are not capturing the full employer match. There is no version of the arithmetic where a policy beats free money. Fix this first.
You carry high-interest debt or lack an emergency fund. Paying off a double-digit balance is a certain return; nothing in a policy is.
Your income is variable or your cash flow is tight. The design assumes you fund it fully, every year, for a long time. Missing premiums in the early years locks in the worst part of the cost curve.
You might need the money back within roughly a decade. Early cash value is normally well below cumulative premiums, and surrender charges apply.
You do not need permanent death benefit. If the only goal is investing, you are paying insurance charges for a service you do not want. If the goal is temporary protection, term insurance costs a fraction of this — run the life insurance needs calculator before assuming permanent coverage is the answer.
You are being sold on the projected column. If the presentation leads with a projected rate and the guaranteed column has not been shown to you, stop. AG 49-A constrains what may be illustrated; it does not make the illustration come true.
You plan to fund it as fast as possible. That is how contracts become MECs. The funding schedule has to be designed against the seven-pay limit, not against your enthusiasm.
You do not intend to review it. An IUL needs in-force illustrations every few years. A policy nobody checks is a policy that quietly stops working.

Using both: a defensible order of operations

For the households where an IUL makes sense, it is almost never instead of a 401(k) — it is after one. Tax diversification is a legitimate goal: nobody knows what ordinary income rates will be in thirty years, and having pre-tax, Roth and life-insurance buckets means you are not betting everything on one answer. The sequence below is the conservative one.

Contribute to the 401(k) at least up to the full employer match.
Clear high-interest debt and hold a real emergency fund in cash.
Fund an IRA or Roth IRA to the 2026 limit of $7,500 if you are eligible, or consider a backdoor Roth contribution with a tax professional if you are over the phase-out.
Increase 401(k) deferrals toward the $24,500 limit, using the age-based catch-up if it is available to you.
Consider an HSA if you are in a qualifying high-deductible plan — it is the only account with a deduction going in and tax-free qualified withdrawals coming out.
Only then, with surplus cash flow and a genuine need for permanent death benefit, look at a properly designed permanent policy — and get the design reviewed by someone who is not paid on the sale.

Whole life is the other permanent option and behaves quite differently, with a contractually guaranteed cash value schedule instead of index-linked crediting. If the appeal to you is predictable collateral rather than index upside, start with the whole life cash value model instead. To model the income side of the question, the tax-free retirement planner walks through how the buckets interact.

Want this run against your actual numbers?We will look at your plan documents, your match formula and your marginal rate first — and if the answer is “max the 401(k) and do nothing else this year,” that is what we will tell you. Book a strategy call.

Frequently asked questions

Is an IUL better than a 401(k)?: Not as a replacement. For nearly everyone the 401(k) is the better first dollar, because an employer match is an immediate return on your own contribution that no insurance policy can reproduce, and because plan costs are far lower than the premium load, per-thousand charges and rising cost of insurance inside a life insurance policy. An indexed universal life policy answers different questions: it has no income cap on who may fund it, no required minimum distributions, and it pays a death benefit that is generally income-tax-free to a beneficiary under IRC 101(a). Those are real advantages, and each of them costs something. The honest comparison is not IUL versus 401(k); it is what you do with the dollars after the 401(k) match and the tax-advantaged accounts are full.
What is the 401(k) contribution limit for 2026?: For 2026 the employee elective deferral limit is $24,500. The catch-up contribution for participants aged 50 and over is $8,000, and participants who reach age 60 through 63 during the year may contribute a higher catch-up of $11,250 instead. The overall limit on all contributions to one participant's account, employee plus employer, is $72,000 for 2026, not counting catch-up contributions. Beginning in 2026, a participant whose prior-year wages with the plan sponsor exceeded $150,000 must make catch-up contributions on a Roth basis if the plan offers a Roth feature. All of these figures are published by the IRS and change most years.
Does an IUL have a contribution limit?: There is no IRS dollar limit the way there is on a 401(k), but it is wrong to say an IUL has no limit. Two rules bind. IRC 7702 caps how much premium a contract can accept relative to its death benefit before it stops qualifying as life insurance at all, so the amount you can fund is set by the size of the death benefit you buy and can medically qualify for. IRC 7702A's seven-pay test then caps how fast you may pay it in: exceed that and the contract becomes a modified endowment contract, loans and withdrawals are taxed income-first, and the tax treatment the whole strategy depends on is gone permanently. Only the carrier can compute those limits for your age, health class and face amount.
Are IUL withdrawals really tax-free?: Not in the same sense a Roth distribution is. A qualified Roth distribution is tax-free by statute. With life insurance, withdrawals up to your basis and properly structured policy loans are generally not included in income while the contract stays in force and is not a modified endowment contract, under IRC 72(e). Those are conditions, not guarantees. If the policy lapses or is surrendered with a loan outstanding, the gain can become taxable income in a year when you receive little or no cash, which IRS Publication 525 describes under surrender of a policy for cash. Loans also accrue interest and reduce the death benefit. Anyone who says tax-free without saying non-MEC and in force is leaving out the part that matters.
Can I have both an IUL and a 401(k)?: Yes, and for the people an IUL actually suits, that is the normal arrangement. There is no interaction between the two in the tax code: funding a life insurance policy does not reduce what you may defer into a 401(k), and 401(k) participation does not limit the policy. The sensible sequence is to capture the full employer match first, clear high-interest debt and an emergency fund, use the IRA or Roth IRA space you qualify for, and only then look at a permanent policy with money you are confident you can commit for decades. Reversing that order is the most common and most expensive mistake in this category.
At what age do 401(k) required minimum distributions start?: Age 73 under current law. The IRS states that you generally must start taking withdrawals from a traditional IRA, SEP IRA, SIMPLE IRA and retirement plan accounts when you reach 73, with the first distribution due by April 1 of the following year. Failing to take the full amount can trigger an excise tax of 25 percent of the shortfall, reduced to 10 percent if corrected within two years. Two exceptions matter here: designated Roth accounts inside a 401(k) or 403(b) are no longer subject to RMDs during the owner's lifetime, and life insurance cash value is not a qualified plan and has no RMD at all.
What are the real costs inside an IUL?: A premium load taken off each payment, a monthly cost of insurance that rises with your attained age, per-thousand and flat administrative charges, rider charges, and surrender charges in the early policy years. None of this appears as a single expense ratio you can compare with a fund, which is precisely why it is easy to miss. A 401(k) participant, by contrast, receives an annual fee disclosure from the plan under Department of Labor rules. Ask any agent for the policy's expense pages and the guaranteed column of the illustration, not just the projected column.
When should you not buy an IUL?: When you are leaving an employer match on the table, when you carry high-interest debt or lack an emergency fund, when your income is variable enough that you might have to stop paying premiums, when you need the money back inside roughly a decade, when you do not actually need permanent death benefit, or when the only reason you are considering it is that someone showed you an illustration with an attractive projected rate. Illustrated rates on indexed products are constrained by NAIC Actuarial Guideline 49-A, but a constrained projection is still a projection. If any of those describe you, an IUL is the wrong tool regardless of how good the sales presentation was.

IUL vs Roth IRA — the comparison that matters if your income is above the Roth phase-out.
Tax-free retirement planner — model how pre-tax, Roth and policy income interact.
Infinite banking / whole life cash value calculator — the guaranteed-floor alternative to index crediting.
Life insurance needs calculator — establish how much coverage you need before deciding what type.

Sources

Educational comparison only — not a policy illustration, not a quote, and not tax, legal or investment advice. Tax figures on this page are the amounts published by the IRS for the 2026 tax year and change annually; verify them against irs.gov before you act on them. Life insurance values depend on the carrier, the product, your underwriting class and future policy charges, none of which are guaranteed by anything on this page. An illustration is a projection, not a promise. Nothing here is an offer of insurance. Confirm your own situation with a qualified tax professional.