A 401(k) fits most workers saving for retirement, most of all when the job offers a match. An IUL fits a person who also needs lifelong life insurance and has already used their 401(k) and other tax accounts.
IUL vs 401(k) at a glance
| IUL | 401(k) | |
|---|---|---|
| Main job | Life insurance with cash value. | A retirement savings plan through work. |
| 2026 yearly limit | No IRS yearly limit like a 401(k). You can pay in almost any amount, within the policy's minimums and maximums. | $24,500. Age 50 and up can add $8,000. Ages 60 to 63 can add $11,250. |
| Money from your boss | None. | Your employer may match what you put in, if the plan allows it. |
| How it grows | Interest uses a formula tied to a market index. Gains are capped. A minimum rate is guaranteed. | Based on the funds you pick in the plan. Your balance can go up or down. |
| Costs inside | Cost of insurance and policy charges come out of the cash value. Surrender charges are common early on. | Depends on your plan's funds and fees. |
| Taxes | Cash value grows tax deferred. Death benefit is generally not taxed to the person you name. | Traditional deferrals are not taxed until you take them out. Roth deferrals are taxed now. |
| Early access | Policy loans are allowed. Unpaid loans reduce the payout and can make the policy lapse. | Before 59½, there is usually a 10% extra tax unless an exception applies. |
| Death benefit | Yes. That is the main reason to buy it. | Your heirs get your balance, not an insurance payout. |
What to know
A 401(k) is a job plan where part of your pay goes into savings. For 2026, the IRS lets you put in up to $24,500. If you are 50 or older, you can add $8,000 more. If your boss matches, that is extra money you only get by joining.
An IUL is indexed universal life insurance. Kansas explains that the cash value earns interest using a formula based on a market index. It often caps the top return but has a guaranteed minimum rate. You do not own shares of the index. Fees and the cost of insurance come out of the cash value each month.
These tools do different jobs. A 401(k) is built for saving. An IUL is built to pay a death benefit, with savings as a side feature. Texas warns that if the cash value falls to zero, a universal life policy can lapse. For most people, the 401(k) match comes first. An IUL can make sense later if you also want insurance for life.
- You need life insurance for your whole life, not just a few years.
- You already put the most you can into your 401(k) and IRA.
- You can pay the premium for many years without stopping.
- Your job offers a match.
- You want the most growth on savings with no cap.
- You want a simple plan with clear yearly limits and low cost.
Common questions
Can an IUL lose money?
The index part has a guaranteed minimum rate, but fees and the cost of insurance still come out. So the cash value can go down. If it hits zero, the policy can lapse.
What is the 401(k) limit for 2026?
$24,500. If you are 50 or older, you can add $8,000. If you are 60 to 63, the catch up is $11,250 instead.
Should I stop my 401(k) to buy an IUL?
Most people should not give up a job match. The match is money you only get by putting in. Look at an IUL as an add on, not a swap.
