Can You Fund a 401(h) and HSA at the Same Time? [Surprising Answer]

A 401(h) account is a sub-account within a defined benefit pension plan, specifically designed to help retirees fund their healthcare expenses. It allows for pre-tax contributions to accumulate funds that can be used for eligible medical costs during retirement, similar to how a traditional pension funds retirement income.

For small business owners, doctors, and high-income professionals, a 401(h) can be a powerful tool to provide significant healthcare benefits in a highly tax-advantaged way. Contributions made to the 401(h) are tax-deductible for the employer and grow tax-deferred. When properly structured, these plans can offer substantial tax benefits while securing a stable source of healthcare funding for plan participants in their golden years.

A Health Savings Account (HSA) is a tax-advantaged savings account that can be used for qualified medical expenses. To be eligible for an HSA, an individual must be enrolled in a High-Deductible Health Plan (HDHP) and not be covered by any other non-HDHP health insurance, with some exceptions.

HSAs offer a triple tax advantage: tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses. Any unused funds roll over year to year and can even be invested, making them a potent tool for both short-term healthcare costs and long-term retirement healthcare planning.

Whether you can contribute to an HSA is decided under §223, which defines an "eligible individual." Four conditions have to hold in a given month: you're covered by a qualifying high-deductible health plan (HDHP), you have no disqualifying other health coverage, you're not enrolled in Medicare, and you're not claimed as a dependent on someone else's return.

The pivotal condition here is the second one. Under §223(c)(1)(A)(ii), you're disqualified only if you're currently covered under a health plan that isn't an HDHP and that pays for the kind of expenses your HDHP deductible would otherwise apply to. The test looks at coverage you hold right now — not at money being set aside for benefits you can't yet touch.

A 401(h) account is a subordinate feature of a qualified pension plan that funds retiree medical benefits. As an active employee, you have no current right to draw reimbursements from it — the account exists to pay medical costs after you separate or retire.

Because it provides no current medical coverage, it isn't "other coverage" that disqualifies you during the accumulation phase. So you can hold HDHP coverage, contribute to an HSA, and have your employer funding a 401(h) on your behalf — all in the same year, without conflict. Your employer is building a future benefit. It is not covering a present expense.

The picture changes once the 401(h) becomes available to reimburse your (and your spouse's or dependents') medical expenses. At that point it functions as non-HDHP coverage — the same way an active, general-purpose HRA does — and it would end HSA eligibility for any month that coverage is in effect.

In practice, this is frequently moot. Retirement often coincides with Medicare enrollment, and enrollment in Medicare independently ends HSA eligibility under §223(b)(7). For most people, the window in which a live 401(h) benefit and HSA eligibility could even theoretically collide has already closed for a different reason.

While you're working, an HSA and an employer-funded 401(h) coexist without conflict — one covers today's care, the other funds tomorrow's. Watch the seam only at retirement, and even then Medicare usually settles the question first.