If your employer-sponsored health plan is governed by ERISA, its subrogation and reimbursement rights let it demand repayment of the medical bills it paid once you recover money from the person who injured you. How much it can actually collect depends on three things: whether your plan is self-funded or fully insured, what the plan document says in writing, and how quickly the plan asserts its claim against identifiable settlement funds. Everything else in the negotiation flows from those three points.
Subrogation and Reimbursement Are Not the Same Thing
Plan documents often use the two words interchangeably, but they describe different mechanics. Subrogation means the plan steps into your shoes and pursues the at-fault party directly. Reimbursement means the plan waits for you to recover and then collects from your proceeds. Most ERISA plans lean on reimbursement language because it’s easier to enforce: no separate lawsuit against the tortfeasor, just a contractual claim against the check you already received.
The distinction matters when your recovery is less than your full damages. A subrogation-only claim is derivative of yours and weakens when your case is worth more than it settles for. A reimbursement clause, especially one written with “first-priority” language, gives the plan a direct claim against the settlement dollars regardless of whether those dollars covered all your losses. Identify which one your plan uses before you negotiate anything.
Self-Funded or Fully Insured Changes the Rules
ERISA preempts state laws that “relate to” employee benefit plans, and that preemption is why plans can enforce recovery terms that state insurance codes would otherwise limit.1Office of the Law Revision Counsel. 29 U.S. Code 1144 – Other Laws How far preemption reaches depends on how your plan is funded.
A self-funded plan pays claims directly from employer assets. Federal law’s “deemer clause” prevents states from treating a self-funded plan as an insurance company, so state anti-subrogation statutes, made-whole requirements, and reimbursement caps do not apply. The plan’s written terms control almost entirely. Buying stop-loss insurance to cover catastrophic claims does not by itself convert a self-funded plan into a fully insured one.
A fully insured plan buys coverage from a licensed insurer, which bears the risk. ERISA’s “savings clause” preserves state laws that regulate insurance, so a state anti-subrogation statute can reach the carrier, and through the carrier, the plan. In states with strong consumer protections, that can sharply cut or eliminate what the plan can collect. If your plan is fully insured, look at your state’s insurance code before accepting any demand letter as final.
What the Plan Can Legally Reach
ERISA lets plan fiduciaries seek “appropriate equitable relief” to enforce plan terms.2Office of the Law Revision Counsel. 29 U.S.C. 1132 – Civil Enforcement In recovery cases, that means an equitable lien by agreement. When you enrolled, you agreed to the plan’s reimbursement terms, and that agreement created a property interest in future settlement proceeds before they existed.
The Supreme Court confirmed this in Sereboff v. Mid Atlantic Medical Services. Because the plan pointed to a specific, identifiable fund of settlement money rather than chasing the participants’ general assets, the claim qualified as equitable relief.3Justia Supreme Court. Sereboff v. Mid Atlantic Medical Services, Inc., 547 U.S. 356 (2006) The practical result: when your settlement check arrives, the plan’s lien attaches to it. You are holding the plan’s money next to your own.
If the Settlement Has Already Been Spent
The Court set a real limit in Montanile v. Board of Trustees. Montanile received a settlement, negotiations with the plan stalled, his attorney warned the plan he would spend the funds if it did not object, and the plan stayed silent. He spent the money on ordinary living expenses. When the plan sued six months later, the Court held it was too late: the funds had been dissipated on items that could not be traced to a specific asset, so the equitable lien was gone. The plan could not reach his paycheck, retirement account, or other general assets to make up the loss.4Justia Supreme Court. Montanile v. Board of Trustees of the National Elevator Industry Health Benefit Plan, 577 U.S. 136 (2016)
The line is between traceable and non-traceable spending. Settlement money sitting in a bank account is reachable. Money used to buy a car may be traceable into that car. Money spent on rent and groceries is gone. This does not mean spending your settlement is a strategy: plans that know a settlement is coming move fast, and deliberately dissipating funds to defeat a legitimate claim invites judicial scrutiny. But it does mean plans have real incentive to act promptly, and a participant who receives no timely demand may have more leverage than expected.
Made Whole and Common Fund: Defaults That Plan Language Can Override
In US Airways, Inc. v. McCutchen, the Supreme Court laid out the governing rule: clear plan language controls, and equitable principles fill only the gaps the plan leaves open.5Justia Supreme Court. US Airways, Inc. v. McCutchen, 569 U.S. 88 (2013) Two doctrines come up in almost every negotiation, and both depend on what your plan says.
The made-whole doctrine says a plan should not recover anything until you have been fully compensated for all your losses, including pain and suffering, lost wages, and future expenses. After McCutchen, it works only as a default. Most sophisticated plans now include express first-priority language stating the plan recovers regardless of whether you have been made whole. If your plan has that language, the doctrine will not help you.
The common fund doctrine says anyone who benefits from a lawsuit’s outcome should share in the cost of producing it. Applied here, the plan should pay a proportionate share of your attorney fees, because your lawyer’s work is what created the settlement the plan is now claiming. McCutchen made this the default when the plan document is silent on attorney fees.5Justia Supreme Court. US Airways, Inc. v. McCutchen, 569 U.S. 88 (2013) Silence gets you an automatic reduction, typically matching your attorney’s contingency percentage. Only explicit plan language addressing recovery costs displaces this rule.
Getting the Plan Documents and Reading Them
You have a federal right to request the documents that govern your plan. A written request to the plan administrator can ask for the Summary Plan Description, the full Master Plan Document, and any other instruments under which the plan operates.6Office of the Law Revision Counsel. 29 U.S.C. 1024 – Filing With Secretary and Furnishing Information to Participants and Certain Employers The administrator has 30 days to respond. A court can impose penalties of up to $110 per day if it does not.2Office of the Law Revision Counsel. 29 U.S.C. 1132 – Civil Enforcement
The Summary Plan Description is an overview. The Master Plan Document holds the enforceable terms, and when they conflict, the Master generally controls. Send the request in writing with a date-stamped delivery method. When the documents arrive, look for four specific things:
- A subrogation or reimbursement clause and what triggers it
- First-priority or made-whole override language
- Any provision addressing attorney fees or the cost of recovery, because silence there means common fund applies in your favor
- The scope of covered recoveries, including whether the plan reaches your own uninsured or underinsured motorist coverage in addition to tort settlements
Auditing the Medical Expense Ledger
Once the plan asserts a lien, its recovery vendor will send an itemized ledger of every claim the plan attributes to your injury. That ledger is the foundation of the demand, and it is often wrong. Automated billing systems do not reliably separate injury-related treatment from routine care.
Cross-reference every line item against your medical records. Prescriptions unrelated to the accident, preventive visits that happened to fall in the treatment window, treatment for pre-existing conditions, and duplicate charges all show up on these ledgers. Anything unrelated to the incident that produced the settlement should be challenged.
Also confirm the ledger reflects what the plan actually paid, not what the provider originally billed. If a provider billed $5,000 and the plan’s negotiated rate was $2,800, the plan can recover only $2,800. Subtract any copays or deductibles you paid personally: that is your money, not the plan’s. Small per-line adjustments compound quickly across months of treatment.
Negotiating the Lien Down
Most lien negotiations should happen before the underlying settlement is finalized. Once you accept a settlement check, you lose your strongest lever: the implicit possibility that the case will not settle at all, leaving the plan with nothing. Bring the plan’s recovery agent into the conversation while settlement talks are still open.
Several arguments regularly produce reductions:
- The available insurance coverage is far below your total damages, and the plan risks getting nothing if you walk away
- The plan is silent on attorney fees, so McCutchen‘s common fund default reduces the lien by your contingency percentage5Justia Supreme Court. US Airways, Inc. v. McCutchen, 569 U.S. 88 (2013)
- The ledger contains documentable errors
- Your settlement was reduced for comparative fault, so the plan’s recovery should be reduced proportionally
Recovery agents handle these claims in volume and understand that seventy cents on the dollar today beats a year of litigation for the full amount. A clean spreadsheet of disputed charges and a clear legal argument on common fund or proportionality will move the number further than a hardship letter.
Finalizing the Payoff and the Release
Once the amount is agreed, ask the plan administrator or its recovery vendor for a written final payoff figure that reflects the negotiated reductions. Payment usually goes to the recovery agent by check or wire from your attorney’s trust account before the remaining funds are distributed to you. After payment clears, request a written release or satisfaction of lien. That document is your only durable proof the claim is resolved, and without it a future administrative demand can resurface. Expect the full process from agreed number to release letter to take 30 to 60 days. Keep every payment confirmation and the release itself indefinitely.
How Long the Plan Has to Sue
ERISA sets no specific deadline for reimbursement lawsuits. Federal courts borrow the most analogous state statute of limitations, typically the state’s breach-of-contract deadline, which runs roughly three to ten years depending on the state. Some plans include a choice-of-law provision selecting a particular state’s deadlines, and courts generally enforce it. The clock usually starts under a discovery rule, when the plan knew or should have known about your settlement. Notifying the plan early can shorten its window; a plan that never receives notice may have years.
Tax Consequences of Settlement Money That Repays Medical Bills
Damages for personal physical injuries are generally excluded from gross income.7Office of the Law Revision Counsel. 26 U.S.C. 104 – Compensation for Injuries or Sickness The picture changes when the settlement reimburses medical expenses you already deducted.
If you deducted medical expenses in a prior year and later receive a settlement covering those same expenses, you generally must report the reimbursed amount as income in the year received, to the extent the original deduction actually reduced your tax.8Internal Revenue Service. Publication 502, Medical and Dental Expenses If the deduction did not reduce your tax, because your expenses fell below the 7.5 percent AGI threshold or you did not itemize, you do not owe tax on the reimbursement up to the expense amount.
When a settlement includes funds earmarked for future medical expenses, you must reduce future medical deductions by the amount allocated to those anticipated costs until the settlement funds are used up.8Internal Revenue Service. Publication 502, Medical and Dental Expenses If the settlement does not itemize the allocation, the IRS presumes the payment first applies to any previously deducted medical expenses, which can create unexpected liability.
The portion of your settlement paid back to the ERISA plan is money you never keep, which raises a separate question about whether you can deduct the repayment. The answer depends on whether you deducted the original medical expenses and how your return is structured. A tax professional who handles personal injury settlements can allocate the numbers correctly and keep you out of an avoidable audit.