Retirement benefits can get confusing fast once you move past the familiar 401(k). One option that surprises a lot of employers is the 401(h) plan, which sounds similar but actually solves a completely different problem. Both are employer-sponsored, but their purpose and mechanics diverge in some pretty significant ways.
Knowing the difference matters if you are building out a benefits package that actually covers both retirement income and the healthcare costs that come with it. This guide breaks down how each plan works, where they overlap, and how to think about offering one, the other, or both.
The 401(k): A Familiar Retirement Savings Tool
The traditional 401(k) has been the backbone of employer-sponsored retirement savings for decades. Its job is simple: help employees build up funds for retirement income. Contributions are usually pre-tax, which lowers taxable income now, and the money grows tax-deferred until it comes out in retirement, taxed as ordinary income at that point. Employers often sweeten the deal with a matching contribution, which speeds up how fast that balance grows.
For 2026, employees can defer up to $24,500 into a 401(k), with an extra $8,000 catch-up contribution available for those 50 and older. It works as a standalone plan, meaning a company can offer it on its own without needing any other retirement plan in place.
The 401(h): A Specialized Tool for Retiree Healthcare
A 401(h) plan solves a different problem entirely. Rather than building general retirement income, it exists specifically to pre-fund retiree medical expenses. It is not something a company can offer by itself. A 401(h) has to operate as a component inside an existing qualified pension plan or a 401(a) profit-sharing plan, under Internal Revenue Code Section 401(a).
The real advantage here is the tax treatment. Distributions from a 401(h) account can come out completely tax-free in retirement, as long as they go toward qualified medical expenses. That is a meaningful way to manage a cost that is often large and hard to predict.
Where the Two Plans Actually Differ
| Feature | Traditional 401(k) | 401(h) Plan |
|---|---|---|
| Primary purpose | General retirement income | Retiree medical expenses |
| Structure | Standalone plan | Component within a pension or 401(a) plan |
| Withdrawal taxation | Taxed as ordinary income | Tax-free for qualified medical expenses |
| Contribution limits | Fixed annual IRS limits | Tied to overall plan funding and projected medical costs |
| How common it is | Offered by employers across most industries | Less common, found mostly alongside other qualified plans |
The purpose split is really the core difference. A 401(k) is built to replace income once a paycheck stops. A 401(h) is built to cover a specific category of expense, retiree healthcare, that a general retirement account was never really designed to handle efficiently.
Structure is the second big difference. A 401(k) stands on its own. A 401(h) cannot. It only exists as a piece of a larger qualified plan, which means a company needs that underlying pension or profit-sharing plan in place before a 401(h) component makes sense.
How Contribution Rules Actually Work
401(k) contribution limits are straightforward and set annually by the IRS, covering both what employees can defer and how much employers can contribute in total. A 401(h) works differently. Contributions have to be “reasonable and necessary” to fund projected retiree medical costs, and they are generally tied to the overall funding level of the pension or 401(a) plan the 401(h) sits inside. There are also limits based on actual medical expenses paid out during the year, rather than a flat dollar cap like a 401(k) has.
This means a 401(h) is not something you fund the same way you would a 401(k). It requires ongoing actuarial input to make sure contributions stay reasonable relative to what retirees are actually expected to need for healthcare.
Can a Company Offer Both?
Yes, and it is actually a fairly common approach for employers who want to cover both bases. A company can run a standalone 401(k) for retirement income savings, while also maintaining a separate qualified pension or 401(a) plan that includes a 401(h) component for healthcare funding.
Offering both signals a real commitment to employee financial wellbeing, addressing both the income side and the healthcare side of retirement, which can be a genuine differentiator when competing for talent, especially in industries where retiree healthcare costs are a bigger concern.
Which Setup Makes Sense for Your Company
The right combination depends on a few factors specific to your organization:
- Your company’s overall financial goals and cash flow flexibility
- The demographics of your workforce, including how many employees are likely to stay long enough to benefit from a 401(h)
- Whether you already sponsor a qualified pension or 401(a) plan, since that is a prerequisite for adding a 401(h) component
- How much retiree healthcare costs factor into your broader benefits strategy
A company without an existing pension or 401(a) plan would need to build that foundation first before a 401(h) becomes an option, which is worth factoring into the decision early rather than discovering it partway through.
Final Thoughts
A 401(k) and a 401(h) are not competing options. They solve different problems. The 401(k) builds general retirement income, while the 401(h) tackles the specific, often unpredictable cost of retiree healthcare. Understanding that distinction is the first step toward building a retirement benefits package that actually covers what employees need, rather than just checking a box.
If you are trying to figure out whether a 401(h) component makes sense alongside your existing plans, the team at Admin316 can walk through your options and help set up and manage whichever combination fits your organization.
This article is for general informational purposes and is not legal, financial, or benefits advice. Talk with a qualified professional for guidance specific to your situation.
