The Employee Retirement Income Security Act, known as ERISA, is the 1974 federal law that sets minimum standards for most private-sector retirement and health benefit plans. It gives you the right to written information about your plan, requires the people running it to act in your interest, protects your earned retirement benefits through vesting rules, and lets you take a dispute to federal court if a claim is wrongly denied. The law’s policy declaration sits at 29 USC 1001.1Office of the Law Revision Counsel. 29 USC 1001 – Congressional Findings and Declaration of Policy
Which Plans ERISA Covers
ERISA reaches two broad categories of employer-sponsored plans. Welfare benefit plans include employer-provided health insurance, disability coverage, and life insurance. Pension benefit plans cover retirement income arrangements such as traditional defined benefit pensions and 401(k)s. Pension plans face stricter funding and vesting rules because they involve long-term promises to pay income in retirement.
Not every plan qualifies. The statute at 29 USC 1003(b) excludes several categories:2Office of the Law Revision Counsel. 29 USC 1003 – Coverage
- Government plans for federal, state, and local employees
- Church plans, unless the religious organization voluntarily elects ERISA coverage
- Plans maintained solely to comply with workers’ compensation, unemployment, or state disability insurance laws
- Plans maintained outside the United States primarily for nonresident aliens
- Unfunded excess benefit plans that pay benefits above tax-qualified plan limits
If you work for a private employer that sponsors a retirement or health plan, ERISA almost certainly applies to you.
What ERISA Guarantees You as a Participant
Written Information About Your Plan
Every covered plan must give you a Summary Plan Description, a plain-language document that explains your benefits, eligibility rules, claims procedures, and rights. New participants are entitled to the SPD within 90 days of becoming covered.3U.S. Department of Labor, Employee Benefits Security Administration. Reporting and Disclosure Guide for Employee Benefit Plans
You also get periodic account information. For a 401(k) or similar plan where you direct your own investments, the plan must send a benefit statement at least quarterly. If you don’t direct investments, the statement comes annually. Traditional pension plans must furnish a statement at least once every three years, or send annual notices telling you how to request one.4Office of the Law Revision Counsel. 29 USC 1025 – Reporting of Participants Benefit Rights
Plans also file annual Form 5500 reports with the Department of Labor that lay out financial condition, investments, and participant counts. Those filings are public.5U.S. Department of Labor Employee Benefits Security Administration. Form 5500 Series
Vesting of Retirement Benefits
The money you contribute to a retirement plan is always yours, fully vested from day one. Employer contributions work differently. For 401(k)-style plans, ERISA requires employer-matching contributions to follow one of two minimum vesting schedules:6Internal Revenue Service. Retirement Topics – Vesting
- Cliff vesting: you own none of the employer contributions until three years of service, then become 100% vested at once.
- Graded vesting: you vest 20% after two years, then another 20% each year, reaching 100% at six years.
Regardless of schedule, you must be fully vested when you hit the plan’s normal retirement age or if the plan terminates. Leaving a job at the wrong point in a cliff schedule can mean walking away from every dollar your employer put in on your behalf.
Fiduciary Duties Owed to You
Anyone who exercises decision-making authority over plan management or assets, gives investment advice for a fee, or handles plan administration is a fiduciary under ERISA. That covers the employer selecting investment options, trustees holding plan assets, and outside investment managers.
Fiduciaries must act solely in the interest of participants and beneficiaries, use reasonable care and diligence, diversify investments to reduce the risk of large losses, and follow the plan’s governing documents to the extent they’re consistent with ERISA. In Tibble v. Edison International, the Supreme Court held that this isn’t a one-time obligation. Fiduciaries have a continuing duty to monitor plan investments and remove imprudent options over time.7Justia. Tibble v Edison International, 575 US 523 (2015)
ERISA also bans certain dealings between a plan and “parties in interest,” a category that includes the employer, plan fiduciaries, service providers, and their relatives. A fiduciary cannot let the plan buy, sell, or lease property with a party in interest, lend money to one, or transfer plan assets for a party in interest’s use. Fiduciaries also cannot use plan assets for their own benefit or accept personal compensation from anyone dealing with the plan.8Office of the Law Revision Counsel. 29 USC 1106 – Prohibited Transactions
Filing a Claim and Appealing a Denial
When a plan denies your claim, the denial notice must state the specific reasons, cite the plan provisions relied on, and explain how to appeal. Read it carefully. In almost every case, you must complete the plan’s internal appeal process before you can file a lawsuit in federal court. Courts call this “exhaustion of administrative remedies,” and skipping it hands the plan an easy defense.
Appeal decision deadlines vary by claim type:
- Urgent health claims: 72 hours
- Pre-service health claims: 15 to 30 days, depending on whether the plan uses one or two appeal levels
- Post-service health claims: 30 to 60 days
- Disability claims: 45 days, with one possible 45-day extension
There is a safety valve. If a plan fails to follow proper claims procedures, your claim may be treated as “deemed denied,” letting you go straight to court without finishing the appeal. Minor, good-faith procedural slips don’t qualify.
COBRA Continuation of Health Coverage
COBRA lives inside ERISA. It requires group health plans sponsored by employers with 20 or more employees to offer continuation coverage when a worker or family member would otherwise lose their benefits.9Office of the Law Revision Counsel. 29 USC 1161 – Plans Must Provide Continuation Coverage to Certain Individuals You pay the full premium, up to 102% of the plan’s cost, with the extra 2% covering administrative expenses. It isn’t cheap, but you stay in the same group plan with the same benefits.
What triggers COBRA depends on who is losing coverage. For employees, it’s termination for any reason other than gross misconduct, or a reduction in hours. For spouses, add the employee’s death, divorce or legal separation, or the employee becoming eligible for Medicare. Dependent children get all of those plus aging out of the plan’s dependent eligibility. Coverage generally runs 18 months for termination or reduced hours and up to 36 months for other qualifying events.10U.S. Department of Labor – Employee Benefits Security Administration. FAQs on COBRA Continuation Health Coverage for Workers
Pension Insurance Through the PBGC
The Pension Benefit Guaranty Corporation is a federal agency created by ERISA to backstop traditional defined benefit pensions. If your employer goes bankrupt or otherwise can’t fund its pension promises, the PBGC steps in and pays retirees up to legal limits.
The guarantee is capped. For 2026, the maximum monthly guarantee for a retiree who begins benefits at age 65 is $7,789.77 as a straight-life annuity. Workers who start earlier get proportionally less: the cap drops to $3,505.40 per month at age 55. Retiring later raises the cap, up to $23,680.90 at age 75.11Pension Benefit Guaranty Corporation. Maximum Monthly Guarantee Tables Benefits above the cap aren’t paid by the PBGC. And 401(k) plans and other defined contribution accounts aren’t covered at all, because they hold individual balances rather than pooled promises.12Pension Benefit Guaranty Corporation. Pension Plan Termination Fact Sheet
How ERISA Interacts with State Law
ERISA broadly preempts state laws that “relate to” a covered plan. The language is sweeping, and it exists so employers operating across state lines don’t face a patchwork of conflicting rules.13Office of the Law Revision Counsel. 29 USC 1144 – Other Laws
There are carve-outs. States keep authority over insurance, banking, and securities. If your employer buys a group insurance policy for its health plan, state insurance law still governs the insurer. Self-funded plans, where the employer pays claims directly out of its own funds, are different. Under the “deemer clause,” a self-funded plan cannot be treated as an insurance company for state regulatory purposes, so it escapes state-mandated benefit requirements, premium taxes, and state insurance department oversight.
Suing Under ERISA
Challenging a Benefit Denial
The most common ERISA lawsuit challenges a denied claim. How much weight the court gives to the plan’s decision depends on the plan document. Under Firestone Tire & Rubber Co. v. Bruch, if the plan doesn’t grant discretionary authority to the administrator, the court reviews the denial from scratch. If it does grant discretion, the court will uphold the denial unless it was arbitrary and capricious, a much harder standard for participants.14Justia. Firestone Tire and Rubber Co v Bruch, 489 US 101 (1989) The plan’s language often decides the case before the facts do.
Suing a Fiduciary
You can also sue a fiduciary for breach of duty, seeking monetary damages to restore plan losses, removal of the fiduciary, or other equitable relief. ERISA does not allow punitive damages, even against a fiduciary who acted in bad faith. The remedies exist to make the plan whole.
Deadlines
Fiduciary breach claims must be filed within the earlier of six years from the last act that formed part of the breach or three years from when you first had actual knowledge of it. If fraud or concealment is involved, the deadline runs six years from discovery.15Office of the Law Revision Counsel. 29 USC 1113 – Limitation of Actions
Attorney Fees
You don’t have to win outright to recover attorney fees. In Hardt v. Reliance Standard Life Insurance Co. (2010), the Supreme Court held that a court can award fees to any party who achieves “some degree of success on the merits.” A participant who wins a remand for further review, short of a final victory, may still recover legal costs.
Penalties for Violations
ERISA is enforced through both civil and criminal penalties. Plan administrators who fail to provide requested documents within 30 days of a participant’s written request face fines of up to $110 per day.16eCFR. Subpart A – Adjustment of Civil Penalties Under ERISA Title I Late or incomplete Form 5500 filings can trigger DOL penalties exceeding $2,500 per day, with IRS penalties on top.
Willful violations carry criminal exposure. Knowingly making false statements or concealing material facts about an ERISA plan can bring fines up to $100,000 and up to 10 years in prison. For organizations, the maximum fine rises to $500,000. Embezzling or stealing plan assets is prosecuted under a separate federal statute that carries up to five years in prison.17Office of the Law Revision Counsel. 18 USC 664 – Theft or Embezzlement From Employee Benefit Plan
Dividing Retirement Benefits in Divorce
ERISA generally bars assigning plan benefits to anyone but the participant, with one important exception: a Qualified Domestic Relations Order. A QDRO is a court order that directs a retirement plan to pay part of a participant’s benefits to a former spouse, child, or other dependent, called the alternate payee. To qualify, the order must name both parties, specify the dollar amount or percentage assigned, state the time period covered, and identify each plan involved. It cannot require the plan to pay benefits it doesn’t offer or to pay out more than the participant’s total benefit.18U.S. Department of Labor, Employee Benefits Security Administration. Qualified Domestic Relations Orders Under ERISA – A Practical Guide to Dividing Retirement Benefits A defective order that the plan rejects can delay payment for months, and a missed deadline can forfeit the alternate payee’s share.