Administrative Exhaustion in ERISA: Why Your Appeal Is Critical to Your Case

A denied disability, life, or pension claim rarely ends in a courtroom on the merits. It ends—or survives—based on what a claimant does in the months right after the denial letter arrives. Federal courts require a participant to complete the plan’s internal appeal process before filing an ERISA lawsuit. A claimant who cannot prove that the plan received a timely ERISA appeal often loses the right to any judicial review of the denial. In short, the ERISA appeal is where most benefit claims are won or lost.

A recent decision involving a former Kirkland & Ellis attorney, Stempel v. Unum Life Insurance Company of America (N.D. Ill.), shows how quickly that risk becomes real. The plaintiff never litigated whether he was disabled. He litigated whether he mailed an appeal—and he lost.

What Administrative Exhaustion Means Under ERISA

ERISA Section 502(a)(1)(B), codified at 29 U.S.C. § 1132(a)(1)(B), gives a participant the right to sue “to recover benefits due to him under the terms of his plan.” The statute says nothing express about exhaustion. Courts have read an exhaustion requirement into the statutory scheme. Plan documents almost always impose one directly (29 U.S.C. § 1132(a)(1)(B); Harrow v. Prudential Ins. Co. of Am., 279 F.3d 244 (3d Cir. 2002)).

Two independent sources create the obligation:

• The plan’s own terms. Most summary plan descriptions state that a claimant must complete the appeal process before starting any legal action, and courts enforce that language as a contractual condition (Stempel v. Unum Life Ins. Co. of Am. (N.D. Ill.)).
• Federal policy. Courts require exhaustion to build a factual record, encourage consistent claim handling, and reduce litigation costs (Harrow, 279 F.3d at 249).

The Department of Labor’s claims regulation supplies the deadlines that make an ERISA appeal workable. A disability claimant receives at least 180 days to appeal an adverse benefit determination. The plan must then decide the appeal within fixed periods (29 C.F.R. § 2560.503-1). Courts have enforced the 180-day appeal window strictly.

The Stempel Decision: An ERISA Appeal Lost on Proof of Mailing

The plaintiff in Stempel filed a long-term disability claim under a group plan that Unum issued to his former law firm. Unum denied the claim and sent a letter that explained how to appeal and told him that Unum’s appeals team would confirm receipt of any appeal he submitted.

He testified that he drafted an appeal, mailed it in January 2022, and mailed a follow-up letter that July. Unum never acknowledged either letter. More than a year later, he sent copies by priority mail. Unum responded in January 2024 that it had never received the earlier letters and that his appeal deadline had passed. Suit followed in July 2024, and the parties took limited discovery on exhaustion alone, then submitted that single issue to the court for decision on the record.

How the Court Ruled in Stempel

The court entered judgment for Unum. The reasoning matters more than the result:

• No confirmation of receipt. The plaintiff produced no witness who saw him mail either letter and no electronic copy of either document, and he gave inconsistent testimony about the computers he used to draft them.
• The envelope undercut the story. The envelope he offered as proof carried the wrong address, no postage, and no postmark.
• The insurer’s records held up. Unum’s mailroom supervisor described a strict intake, sorting, and quality-control protocol, digital retention of received mail for at least seven years, and a search of both the digital archive and the vendor’s physical facility that turned up nothing.
• The mailbox rule did not rescue the claim. The common-law presumption that a properly addressed and stamped letter reaches its destination never attached. The mailing evidence failed on credibility and on the basics of address and postage. The insurer’s nonreceipt evidence also rebutted any presumption that might have applied.

The court also confirmed that exhaustion language in a summary plan description binds the claimant when that document forms part of the plan.

ERISA Appeal Lessons for Claimants and Referring Attorneys

Stempel is a proof case, not a medical case. The following practices keep a claim on the merits track:

• Track the appeal deadline from the denial letter’s date. For disability claims, expect 180 days, and calendar an internal deadline well before it (29 C.F.R. § 2560.503-1(h)).
• Send appeals through a traceable channel. Certified mail with return receipt, overnight courier with delivery confirmation, or the insurer’s electronic portal each generate independent proof of delivery.
• Keep the full record. Retain the appeal letter in native electronic form, the transmittal, the tracking data, and the postage receipt.
• Demand written confirmation. When an insurer promises acknowledgment of an appeal and none arrives within two weeks, call, document the call, and resend.
• Submit the complete evidentiary package. Courts in most circuits limit review to the administrative record, so treat the appeal as the trial.
• Watch for deemed exhaustion. When a plan fails to adhere strictly to the disability claims regulation, the claimant may be deemed to have exhausted and may proceed directly to court (29 C.F.R. § 2560.503-1(l)(2)(i)).
• Do not rely on futility. The Third Circuit demands “a clear and positive showing of futility,” weighing factors such as diligence and the administrator’s own compliance failures (Harrow, 279 F.3d at 250).

How The Garner Firm Protects the Administrative Record

The Garner Firm concentrates its practice on plaintiff-side ERISA litigation. That work covers long-term disability, life insurance, health benefits, pension and retirement plan disputes, and Section 510 retaliation claims. Our attorneys have handled individual and class matters and briefed and argued appeals from denied benefit claims. We have also taught continuing legal education programs on the ERISA appeal, the standard of review, remedies, and attorney’s fees.

That experience shapes how we work a case before litigation ever begins. We prepare appeals that develop the medical, vocational, and occupational evidence a court will later read; we insist on written confirmation of every submission; and we document each step so that no insurer can argue, as Unum successfully argued in Stempel, that the appeal never arrived.

We also review files that other attorneys refer to us after a denial, including matters where the appeal deadline is close. Early involvement gives a claimant the widest range of options; late involvement narrows them quickly.

Talk to an ERISA Attorney Before Your Appeal Deadline Passes

If an insurer or plan administrator denied your claim for benefits, act now rather than after the deadline. Contact The Garner Firm for a case evaluation, and bring your denial letter, your plan documents, and any correspondence you have already sent. We will assess your deadlines, your exhaustion posture, and the evidence your appeal still needs.

This article provides general information and does not constitute legal advice. Deadlines and requirements vary by plan and by circuit.