401(h) Rules

401(h) Plan Investment Options and Considerations

401(h) assets typically invest alongside the underlying qualified plan, with separate accounting and fiduciary care. Here's what design teams weigh.

By 401h.com EditorialPublished Jun 15, 2026Updated Jun 15, 20269 min read

Key takeaways

  • 401(h) assets typically pool with the qualified-plan trust, separately accounted.
  • An investment policy statement should address both the retirement and medical streams.
  • Liquidity matters more than for the pure retirement stream — claims are paid currently.
  • Fiduciary oversight extends to the 401(h) sub-account.

Pooled investment, separate accounting

The 401(h) sub-account's assets may be invested as part of the qualified plan's overall portfolio, but recordkeeping must keep the 401(h) component distinct. Many sponsors use a notional allocation methodology within a pooled portfolio.

Liquidity is different

Unlike pure retirement assets that pay decades out, 401(h) assets pay current retiree medical benefits. The investment policy should reflect a meaningful short- and intermediate-duration sleeve.

Fiduciary care

Plan fiduciaries owe the same duties to 401(h) assets as to retirement assets — prudence, diversification, and loyalty to the plan and its participants.

Frequently asked questions

They can, subject to the plan's investment policy and fiduciary considerations. Many sponsors choose to align allocations or run a notional sub-portfolio.

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.

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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.

Next step

Find out whether a 401(h) strategy may fit

Talk with a 401(h) specialist about your plan, participant group, and retiree medical objectives.

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.