401(h) vs HSA: What's the Difference?
An HSA is an individual, portable account you own. A 401(h) is a sub-account of an employer's qualified retirement plan. They are not substitutes for each other.
Contents
Key takeaways
- HSAs are individually owned; 401(h) accounts are part of an employer-sponsored qualified plan.
- HSAs have statutory annual dollar limits; 401(h) funding is actuarially determined.
- HSAs require pairing with a qualified high-deductible health plan; 401(h) requires a qualified pension or annuity plan.
- Both can play a role in long-term healthcare planning, but they answer different questions.
Different primary purpose
An HSA is a personal, portable savings vehicle paired with a qualified high-deductible health plan, designed to cover current and future qualified medical expenses with tax-favored dollars. A 401(h) account is a structural feature of an employer-sponsored qualified pension or annuity plan, designed to pay retiree medical benefits to a defined participant group.
Different ownership
An HSA is owned by the individual. It moves with them across jobs, into retirement, and beyond. A 401(h) account is part of the employer plan; participants receive benefits in accordance with the plan document and applicable law, but they do not 'own' a 401(h) balance the way they own an HSA.
Different funding source
HSAs are funded by the individual and sometimes the employer, subject to annual statutory contribution limits set by the IRS. 401(h) funding comes from employer contributions to the qualified plan, subject to the plan's actuarial methodology and the incidental-benefit limit — not a flat dollar cap.
Different rules and reporting
HSAs follow individual tax-reporting rules (Form 8889, qualified medical expenses defined under §213(d), penalties for non-qualified withdrawals before age 65). 401(h) sits inside the qualified-plan world: plan documents, Form 5500, fiduciary oversight, and ERISA where applicable.
Can you use both?
Often, yes — they answer different questions. An HSA can be a powerful individual savings tool; a 401(h) can be a structural employer-side vehicle for formalizing retiree medical benefits. Coordination is a design conversation with your CPA, the plan actuary, and ERISA counsel.
Frequently asked questions
Availability, tax treatment, and plan design depend on the facts and circumstances of the employer, plan document, participant group, and applicable law. 401h.com provides general educational information only — not tax, legal, actuarial, investment, or ERISA advice. Consult qualified tax, legal, actuarial, and plan professionals.
401h.com Editorial
401h.com
The 401h.com editorial team publishes plain-English explainers on 401(h) retiree medical benefit plans. Educational only — not tax, legal, actuarial, investment, or ERISA advice.
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