Common 401(h) Plan Mistakes to Avoid
Most 401(h) failures trace to the same handful of structural issues. Here are the ones advisors see repeatedly — and how to avoid them.
Contents
Key takeaways
- Plan-document language is the single most common failure point.
- Separate accounting is non-negotiable.
- Incidental-benefit excess can disqualify the feature.
- Skipping nondiscrimination analysis creates exposure.
- Administration drift causes slow, compounding problems.
Skipping plan-document language
Without proper 401(h) provisions in the underlying qualified plan, the structure does not exist. Verbal understandings and intent letters are not substitutes for plan amendments.
Ignoring separate accounting
Commingling 401(h) and retirement assets in a way that defeats separation is a common pitfall. Pooled investment is allowed; pooled accounting is not.
Letting medical benefits drift above incidental
Plans drift. Funding patterns and demographics change. Without periodic checks, the medical-to-retirement ratio can creep above the incidental ceiling — sometimes silently.
Treating nondiscrimination as an afterthought
The retiree medical benefit must be tested. Concentrated benefits for highly compensated employees draw scrutiny, and corrective action gets more expensive the longer it waits.
Administration drift
Compounding small issues are surprisingly destructive:
- Missed restatements.
- Inconsistent claim handling.
- Form 5500 entries that no longer match operations.
- Vendor changes without parallel plan-document updates.
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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