ERISA Self-Funded Plans and Pharmacy Liens: What PI Attorneys Must Know

James Wong — Founder & Pharmacist, LienScripts | January 23, 2026 | 8 min read

When your PI client's health coverage is a self-funded employer plan, ERISA preemption overrides California's made-whole doctrine and forces full subrogation reimbursement. Here is what that means for pharmacy liens at settlement — and why proactive lien enrollment at intake changes the calculus entirely.

This post is for informational purposes only and does not constitute legal advice.

The ERISA Problem Every PI Attorney Encounters

You have a client with a strong liability case, a solid damages picture, and a settlement in sight. Then the letter arrives from the third-party administrator of your client's employer health plan, asserting a subrogation interest under ERISA. Suddenly the settlement waterfall gets complicated.

ERISA — the Employee Retirement Income Security Act of 1974 — governs the vast majority of employer-sponsored health benefit plans in the United States. For personal injury attorneys, the defining characteristic of ERISA-governed plans is federal preemption: state laws that would otherwise protect your client's settlement proceeds from subrogation claims simply do not apply.

This post explains how self-funded ERISA plans interact with pharmacy liens, why the two claims arise through fundamentally different mechanisms, and how understanding that difference shapes your settlement strategy.

What Makes a Plan "Self-Funded" Under ERISA

Most employees know they have "health insurance through work" but do not know whether their employer's plan is fully insured or self-funded. The distinction matters enormously in PI.

Fully insured plans. The employer pays premiums to a commercial insurer (Aetna, Blue Shield, Cigna, United, etc.) and the insurer bears the financial risk. These plans are regulated partly by state insurance law, and in some circumstances California's protective doctrines may apply at least partially.

Self-funded plans. The employer assumes the financial risk directly — paying claims out of a corporate trust fund — and typically hires a third-party administrator (TPA) to process claims. The TPA may be a major insurer's administrative arm (e.g., UnitedHealthcare as TPA, not insurer), but the employer is the plan sponsor and the employer's funds pay benefits. Self-funded plans receive the strongest ERISA preemption protection and are almost entirely beyond the reach of state insurance regulation.

Identifying a self-funded plan requires reading the Summary Plan Description (SPD). Self-funded SPDs typically include language like: "This Plan is self-funded by [Employer Name] and is not an insurance product." The SPD will also identify the TPA. If there is no such language, request the plan funding document or ask the TPA directly.

[!KEY] More than 60 percent of American workers with employer-sponsored coverage are enrolled in self-funded plans. For any PI client who receives health coverage through an employer, obtaining the SPD at intake and confirming whether the plan is self-funded is not optional — it determines the entire subrogation analysis.

ERISA Preemption of State Anti-Subrogation Laws

California has meaningful protections for PI plaintiffs facing health insurer subrogation claims. The made-whole doctrine, codified through case law and supported by the Insurance Code, provides that a health insurer cannot recover its subrogation interest until the plaintiff has been fully compensated for all damages. When a settlement is inadequate relative to total injury, the insurer may recover nothing or receive a substantially reduced amount.

None of this applies to self-funded ERISA plans.

ERISA § 514(a) preempts state laws that "relate to" employee benefit plans. Courts have consistently held that state anti-subrogation laws, made-whole doctrines, and insurance regulations that would limit a self-funded plan's recovery rights are preempted. The plan's SPD controls.

Under US Airways, Inc. v. McCutchen, 569 U.S. 88 (2013), the Supreme Court confirmed that ERISA plan terms govern the subrogation recovery amount. Federal equitable principles — including the common fund doctrine — may modify the plan's recovery where the SPD is silent, but state law defenses are simply unavailable.

The practical consequence: when your client is enrolled in a self-funded ERISA plan and that plan paid for injury-related treatment, the plan can demand full reimbursement even if your client received a fraction of their total damages.

[!SOURCE] US Airways, Inc. v. McCutchen, 569 U.S. 88 (2013): The Supreme Court held that ERISA plan terms control the amount recoverable by the plan in a subrogation action, subject only to federal equitable principles where the plan is silent — not state law defenses. Plans with explicit anti-made-whole language can enforce full reimbursement regardless of the adequacy of the plaintiff's recovery.

How Pharmacy Liens Are Different from ERISA Subrogation

The most important thing to understand about pharmacy liens in the ERISA context is that they arise through an entirely separate mechanism — one that ERISA does not govern.

A pharmacy lien is a contractual arrangement between an injured patient, their attorney, and a lien-based pharmacy provider. The pharmacy dispenses medications on credit, extends a payment deferral until case resolution, and holds a contractual lien against the settlement. The pharmacy is not an employee benefit plan. No employer funds were used. No health plan claim was processed.

ERISA's preemption provision applies to state laws that relate to employee benefit plans. A pharmacy lien has nothing to do with an employee benefit plan — it is a private commercial arrangement between the patient and a pharmacy. ERISA does not govern it, preempt it, or affect it.

When medications are dispensed through a pharmacy lien, the self-funded ERISA plan has no subrogation interest in those medications because it never paid for them. Subrogation requires the subrogee to have first paid the claim. If the ERISA plan never processed a pharmacy claim for those medications, its subrogation right simply does not attach.

[!KEY] Pharmacy liens and ERISA subrogation operate on parallel tracks that do not intersect when the lien is established at intake. ERISA preemption, no matter how broadly applied, cannot give a self-funded plan a subrogation claim on costs it never paid — which is exactly why proactive pharmacy lien enrollment is the single most effective ERISA risk mitigation tool in a PI practice.

Plan Language Analysis: What to Read in the SPD

Not all ERISA plans are created equal. Even among self-funded plans with broad subrogation provisions, careful plan language analysis often reveals limitations attorneys can exploit.

Look for the "paid by the Plan" requirement. Most subrogation clauses require the plan to have "paid" or "provided benefits for" the claimed costs. If the plan paid for imaging and surgery but not pharmacy, the subrogation clause does not reach medications dispensed through a pharmacy lien. Confirm this with EOBs and TPA claims data.

Anti-made-whole clauses. Plans that wish to override the made-whole doctrine typically include explicit language: "The Plan's right to reimbursement exists regardless of whether the Covered Person has been fully compensated for all damages." If this language is absent, a federal equitable made-whole argument may still be available.

Attorney fee provisions. Under the common fund doctrine recognized in McCutchen, if the SPD is silent on attorney fees, the plan must contribute proportionately to the attorney's fee that produced the recovery. Many SPDs do not address this, creating a negotiating point that can reduce the plan's net recovery by 33 to 40 percent.

Exclusions and limitations. Review whether the plan's coverage includes the specific treatment at issue. If the plan's benefit structure excluded a medication your client received through a pharmacy lien — for example, a compounded topical cream or a non-formulary specialty drug — the plan had no coverage obligation for that medication and therefore no subrogation interest.

Settlement Waterfall with an ERISA Plan in the Picture

When a self-funded ERISA plan has a legitimate subrogation claim, the settlement distribution requires careful sequencing. A typical waterfall in a case with both an ERISA plan and a pharmacy lien looks like this:

1. Gross settlement proceeds received into trust.

2. Attorney fees and costs deducted (contingency percentage, litigation expenses).

3. ERISA plan subrogation — negotiated amount. This is where you apply the McCutchen common fund reduction, challenge unrelated charges, and confirm the amount the plan actually paid with EOBs. The confirmed and negotiated ERISA plan recovery comes out of the gross settlement, often framed as reducing the total available to the plaintiff.

4. Pharmacy lien — negotiated amount. The pharmacy lien is a separate line item paid to the lien provider from the net proceeds. It is not a competing claim with the ERISA plan — the plan has no interest in it, and the pharmacy has no interest in the ERISA dispute.

5. Client net recovery. After attorneys' fees, ERISA plan reimbursement, and pharmacy lien payment, the remaining proceeds go to the client.

One critical point: ERISA plans sometimes assert their subrogation claim against the gross settlement before deduction of attorney fees. Fight this. McCutchen supports the common fund deduction. Document your time spent obtaining the recovery from which the plan benefits and negotiate the reduction explicitly.

Practical Strategy Checklist for ERISA Cases

• At intake, ask: Is your health plan through your employer? If yes, is the employer a large company? Request the SPD immediately.
• Identify whether the plan is self-funded or fully insured from the SPD's funding language.
• Enroll the client in a pharmacy lien for prescription medications at intake — this removes medications from the ERISA plan system entirely.
• When the ERISA plan's demand arrives, request full itemized EOBs and TPA claims data before acknowledging any amount.
• Identify which claimed costs the plan actually paid. Challenge line items for medications dispensed under the pharmacy lien.
• Apply the McCutchen common fund doctrine to reduce the plan's net recovery by the contingency percentage where the SPD is silent on attorney fees.
• Consider Montanile v. Board of Trustees, 577 U.S. 136 (2016): once settlement proceeds are disbursed into non-traceable assets, the plan's equitable lien may be extinguished.
• Put all negotiations and agreed amounts in writing before disbursing.

[!KEY] The attorney fee reduction under the McCutchen common fund doctrine is available in virtually every ERISA subrogation negotiation where the SPD is silent on fees. It should be raised in the first written communication to the TPA — not as an afterthought after a figure has been agreed upon.

Related Resources

• What Is ERISA Preemption in Personal Injury?
• ERISA Preemption Case Study: Pharmacy Lien Survives Self-Funded Plan Subrogation Claim
• Health Insurance Subrogation vs. Pharmacy Liens: California PI Attorney Guide