Executive Summary: Level Funded as Supplemental Insurance: Can the Model Work as a Layer Rather Than a Foundation?
LFP-08.06, The Hybrid Frontier#
Level funded is built as primary coverage. Every component of its structure, the claims fund contribution, the stop loss attachment points, the administrative fee, the network access arrangement, assumes the plan is the member’s principal payer of medical benefits. Adapting level funded to a supplemental role requires changing the foundational assumptions of the product rather than adding features. The concept has genuine merit for identifiable populations. The product adaptation required to realize it has not been built.
The populations who would benefit are real. An ICHRA employer whose employees face bronze-tier marketplace deductibles above $6,000 has no group product designed to fill that gap. A direct primary care employer who pairs DPC membership with high-deductible coverage leaves a gap for specialty, hospital, and catastrophic care; as of January 1, 2026, a regulatory change removed the prohibition on HSA contributions for members with DPC memberships paired with HSA-eligible HDHPs, removing one historical barrier to DPC-plus-HDHP combinations. Small employers with multiple employees in the 55-to-64 pre-Medicare cohort face actuarial instability in primary level funded plans that a supplemental layer sized for that cohort’s gap might address without migrating to a fully separate vehicle.
Three structural challenges prevent the product from existing. Stop loss underwriting for supplemental risk differs from primary coverage underwriting in ways that require carrier adaptation: a supplemental layer does not pay first-dollar claims on most encounters, producing different variance characteristics that no standard stop loss product has been designed for. Claims coordination requires the supplemental layer to receive claims data from primary payers, individual marketplace carriers or Medicare, that have no obligation to share data and with whom the employer has no direct contracting relationship. Regulatory classification is uncertain: a supplemental arrangement structured as a group health plan under ERISA, as an accident and health product under state insurance regulation, or as an HRA covering gap expenses each carries different compliance obligations, and benefits attorneys have not developed consensus guidance because the product does not yet exist.
Within existing structures, a group coverage HRA can reimburse employees for cost-sharing up to an employer-defined annual limit alongside a high-deductible group plan, providing a funded first-dollar layer without stop loss protection. This approximation serves specific gap situations. It is not the integrated supplemental level funded product the populations above need.
The opportunity exists within reach of a TPA willing to invest in supplemental product design alongside a stop loss carrier willing to underwrite a non-standard risk profile. The market is not large enough to attract large carrier resources. It is large enough to matter for a TPA focused on the specific employer segments the gap affects.