Cross-Plan Offsetting

Cross-plan offsetting is a practice where a health insurer or TPA that overpays a provider on one member's claim recovers the overpayment by reducing the payment on a different member's future claim — often a member on a completely different employer's plan. The provider gets a net-adjusted payment that reflects the offset, without necessarily knowing which claim the reduction relates to.

The practice has come under legal scrutiny. Courts have questioned whether cross-plan offsetting violates ERISA fiduciary duties because a self-funded employer's plan assets are being used to make the plan whole for an overpayment on a completely different plan's claim. UnitedHealth and other major carriers have faced litigation over the practice, with mixed outcomes. The Department of Labor has expressed concerns about the practice on ERISA plans specifically. Some TPAs have moved away from cross-plan offsetting in favor of direct provider recovery on the plan that actually overpaid, which is administratively harder but on cleaner legal footing.

The takeaway: if you're a self-funded employer, ask your TPA specifically whether they use cross-plan offsetting on your plan and what the amounts have been. It's not always obvious in the standard reporting, and it's worth understanding before an enforcement action or member complaint makes it visible.