ERISA Claims and Appeals: Deadlines, Review, and Lawsuits

Under ERISA, the deadlines for claims and appeals are set by federal regulation and run against both you and the plan. The plan has anywhere from 72 hours to 105 days to decide your initial claim depending on the benefit type. You then have 60 days to appeal a pension denial or 180 days to appeal a health or disability denial. After the internal appeal, you can sue in federal court, but the window to file that lawsuit is usually set by the plan document itself. Miss any of these deadlines and you can lose the claim regardless of its merits.

How Long the Plan Has to Decide Your Initial Claim

The Department of Labor’s claims regulation at 29 C.F.R. § 2560.503-1 sets maximum response times that vary by claim type.¹ These are ceilings, not targets.

Urgent care claims: 72 hours. These are situations where a delay could seriously jeopardize your life, your health, or your ability to regain maximum function.
Pre-service health claims: 15 days, with one possible 15-day extension if circumstances beyond the plan’s control require it.
Post-service health claims: 30 days, with one possible 15-day extension.
Disability claims: 45 days, with up to two 30-day extensions for special circumstances, stretching the maximum to 105 days.
Pension and other benefit claims: 90 days, with one possible 90-day extension for special circumstances.

When a plan takes an extension, it must notify you in writing before the original deadline expires, explain why the extension is needed, and tell you when to expect a decision. For disability claims, if the plan needs additional information from you to decide the claim, the clock pauses from the date it asks until you respond, or until at least 45 days pass, whichever comes first.²

What a Denial Notice Must Tell You

A denial notice is not a form letter. The statute requires it to state the specific reasons for the denial in language you can understand.³ The regulation adds more specific requirements. The notice must:

Cite the exact plan provisions the administrator relied on, not just a general category.
Describe any additional material you could submit to strengthen your claim and explain why it matters.
Identify any internal rule, clinical guideline, or protocol used in the denial, or tell you one exists and offer a free copy.
Describe the plan’s appeal procedures and the deadlines for filing.²

A notice that omits any of these elements is procedurally deficient, which matters if the dispute later reaches court.

Your Deadline to File an Internal Appeal

Once you receive the denial, the appeal clock starts. How much time you have depends on the benefit:

Group health and disability claims: at least 180 days from receipt of the denial notice.²
Pension and other benefit plans: at least 60 days from receipt of the denial.

Missing this deadline is one of the most consequential mistakes a participant can make. Courts routinely refuse to hear ERISA cases where the participant let the appeal window lapse, treating the failure as a permanent waiver. If you are close to the deadline and still gathering evidence, file with what you have and say more documentation will follow. A timely but incomplete appeal beats a late one.

Send the appeal to the address in the denial notice or the SPD. Use certified mail or another method that creates proof of delivery with a date stamp. Put the appeal in writing and address each reason the plan gave for the denial. This is your chance to submit new evidence: updated medical records, second opinions, expert reports, vocational assessments. Once the case reaches federal court, judges usually limit their review to whatever is in the administrative record, so treat the appeal as your best opportunity to build the file.

How the Appeal Must Be Reviewed

The plan must conduct a full and fair review of everything you submit, whether or not it was part of the original claim.¹ For group health and disability claims, the review must be handled by someone who was not involved in the initial denial and who is not a subordinate of the person who denied it. That structural independence is one of the most important protections in the process.

Medical Expert Consultations

If your health or disability denial involves medical judgment, such as whether a treatment is medically necessary or whether a procedure is experimental, the plan must consult a health care professional with training and experience in the relevant field. That consultant cannot be the same person, or a subordinate of the person, consulted during the initial denial.¹ The plan must also identify any medical or vocational expert whose advice it obtained, whether or not the plan actually relied on that advice.

Access to Your Claim File

During the appeal, you have the right to review your entire claim file, including internal notes, medical reports, and any guidelines or clinical criteria the plan used. The plan must provide copies free of charge on request.² Requesting this file is worth doing in every case. It often reveals the specific reasoning and medical opinions that drove the denial, which shows you exactly what your appeal needs to overcome.

The Plan’s Deadline to Decide Your Appeal

The plan’s decision deadline also varies by claim type:

Urgent care: 72 hours.
Pre-service health claims: 30 days, or 15 days per level if the plan has two levels of appeal.
Post-service health claims: 60 days, or 30 days per level for two-level appeals.
Disability claims: 45 days, with one possible 45-day extension.
Pension and other plans: 60 days, with one possible 60-day extension.¹

If the plan misses its deadline without a valid extension, you may treat the appeal as denied and move on.

External Review for Health Plan Denials

Health plan participants get an extra layer that pension participants do not. Under the Affordable Care Act, group health plans must offer an external review by an Independent Review Organization (IRO) not affiliated with the plan.

External review is available when the denial turns on medical necessity, appropriateness of the health care setting, whether a treatment is experimental, or whether a rescission of coverage was proper. It is not available for denials based purely on eligibility, such as whether you qualify for coverage in the first place.⁴

File the external review request within four months of receiving the final internal denial. The plan then has five business days to complete a preliminary review of whether your request qualifies. Once an IRO takes the case, it has 45 days to issue a written decision for standard reviews, or 72 hours for expedited reviews involving urgent medical situations.⁴ The IRO’s decision binds the plan, but you still keep the right to sue in federal court.

When the Plan Misses Its Own Deadlines

Sometimes the plan is the one that fails. It might blow a decision deadline without requesting an extension, issue a denial notice that omits required information, or ignore the appeal procedures the regulation demands. When that happens, the claims regulation includes a powerful remedy: you are deemed to have exhausted your administrative remedies and can proceed directly to federal court without completing the internal process.¹

This deemed-exhaustion rule exists because the internal process only works if the plan actually follows it. If you believe the plan has violated the claims procedure, document every missed deadline and deficient notice. That record becomes your ticket into court.

Filing a Lawsuit in Federal Court

After exhausting the internal appeals, or being deemed to have exhausted them, you can file a civil action in federal district court under ERISA Section 502(a)(1)(B) to recover benefits due or to clarify your right to future benefits.⁵

Courts generally require exhaustion before filing suit. Exceptions exist but are narrow. A court may excuse the requirement if pursuing the internal appeal would be futile, such as when you were denied meaningful access to the review process. Arguing that the administrator has a conflict of interest is usually not enough on its own; you would need to show the process itself was inaccessible or fundamentally unfair.

One practical reality catches many participants off guard: the court typically reviews only the evidence in the administrative record, meaning what you submitted during the claim and appeal stages. New evidence is generally not admitted. If a critical medical report or expert opinion is not in the appeal file, you likely cannot introduce it for the first time in court.

How Courts Review the Denial

The standard a court uses depends on the plan document. In Firestone Tire & Rubber Co. v. Bruch, the Supreme Court held that the default standard is de novo review, meaning the court takes a fresh look at the evidence and decides for itself whether the plan got it right.⁶ Under de novo review, the court owes no deference to the administrator.

If the plan document grants the administrator discretionary authority to interpret plan terms or determine eligibility, courts apply a more deferential standard, often called “arbitrary and capricious” review. Under that standard, a court will overturn the denial only if the decision was unreasonable. The practical difference is enormous. Some states have enacted laws restricting discretionary clauses in insurance policies, which can shift the standard back to de novo even when the plan language purports to grant discretion. Checking your plan for a discretionary authority clause is one of the first things to do if you are considering litigation.

Your Deadline to File the Lawsuit

ERISA itself does not set a specific statute of limitations for benefit claims under Section 502(a)(1)(B). Two other sources fill the gap.

First, many plan documents include a contractual limitations provision that sets a deadline for filing suit. The Supreme Court confirmed in Heimeshoff v. Hartford Life & Accident Insurance Co. that these contractual deadlines are enforceable, even when the limitations period begins running before the internal appeals process is finished, as long as the period is reasonable.⁷ In that case, the Court upheld a three-year period measured from the date proof of loss was due, even though internal appeals consumed roughly the first year. Plans that offer dispute resolution beyond the regulatory minimum must toll the limitations period during that extra time.

If the plan document does not contain a contractual limitations provision, courts borrow the most analogous statute of limitations from the state where the case is filed. The borrowed period varies. Read your plan document and denial letter carefully for language about when you must sue. If a contractual deadline exists and you miss it, the court will likely dismiss your case regardless of how strong the underlying claim might be.

Attorney Fees and Document Penalties

ERISA allows the court to award reasonable attorney fees and costs to either party in a benefit dispute.⁵ You do not need to win outright. The Supreme Court has held that a claimant who achieves “some degree of success on the merits” is eligible to seek fees, though a purely procedural or trivial success is not enough. Once that threshold is met, the court weighs factors like the plan’s bad faith or culpability, its ability to pay, and the relative merits of each side’s position. Fee awards are discretionary, not automatic.

There is also a separate penalty for withholding plan documents. If you submit a written request and the administrator fails to provide them within 30 days, the administrator can be held personally liable for up to $100 per day for each day of the failure.⁵ That $100 figure is the statutory base, adjusted periodically for inflation under the Federal Civil Penalties Inflation Adjustment Act. Documents you are entitled to request include the SPD, the plan document, the latest annual report (Form 5500), the trust agreement, and any other instruments governing how the plan operates.⁸ Put the request in writing and keep a copy. The 30-day clock runs from the date the administrator receives it, and proof of that date matters if the penalty is ever in play.

1
eCFR. 29 CFR 2560.503-1 – Claims Procedure
2
U.S. Department of Labor. Benefit Claims Procedure Regulation FAQs
3
Office of the Law Revision Counsel. 29 USC 1133 – Claims Procedure
4
eCFR. 45 CFR 147.136 – Internal Claims and Appeals and External Review Processes
5
Office of the Law Revision Counsel. 29 USC 1132 – Civil Enforcement
6
Justia US Supreme Court. Firestone Tire and Rubber Co. v. Bruch, 489 U.S. 101 (1989)
7
Justia US Supreme Court. Heimeshoff v. Hartford Life and Accident Insurance Co., 571 U.S. 99 (2013)
8
U.S. Department of Labor. Reporting and Disclosure Guide for Employee Benefit Plans