ERISA Severance Plans and Preemption of California Claims

Whether a severance program counts as an ERISA plan often decides how a former employee’s lawsuit over severance pay will be fought. If it does, federal law generally preempts California contract and related claims about the benefit, and the employee’s claim becomes one for plan benefits under the plan’s own terms. If it doesn’t, state law governs. A lump sum under a single agreement usually falls outside ERISA, while an ongoing program with someone deciding claims often falls inside it.

When is a severance program an ERISA plan?

When it needs ongoing administration. ERISA’s definition of a welfare plan in 29 U.S.C. § 1002(1) covers “any plan, fund, or program” an employer maintains to provide benefits listed in the statute, including “benefits in the event of sickness, accident, disability, death or unemployment.” Severance pay falls within that category when it’s paid through a plan.

The Supreme Court drew the line in Fort Halifax Packing Co. v. Coyne (1987) 482 U.S. 1, which upheld a Maine statute requiring severance after a plant closing. The Court reasoned that “The requirement of a one-time, lump-sum payment triggered by a single event requires no administrative scheme whatsoever to meet the employer’s obligation.” The Court explained that such an employer “assumes no responsibility to pay benefits on a regular basis.”

That reasoning gives employers a practical test. A written severance policy that applies to every layoff, sets eligibility and formulas, pays over time, and has someone deciding who qualifies looks like a plan. A single separation agreement that pays one employee a fixed sum looks like a contract.

What does preemption do to the employee’s claims?

It can displace them. Under 29 U.S.C. § 1144(a), ERISA’s provisions “shall supersede any and all State laws insofar as they may now or hereafter relate to any employee benefit plan” covered by the statute. A claim for breach of contract, breach of the implied covenant, or a related state-law theory seeking severance under an ERISA plan is a candidate for dismissal on that ground.

The employee isn’t left without a remedy. 29 U.S.C. § 1132(a)(1)(B) lets a participant sue “to recover benefits due to him under the terms of his plan.” The words “under the terms of his plan” matter: the plan document, not the employee’s memory of a conversation with a manager, defines what’s owed.

Preemption also affects the forum, but not always the way employers assume. Under section 1132(e)(1), state courts and federal district courts “shall have concurrent jurisdiction” of benefit claims under paragraph (1)(B). The claim can stay in state court as an ERISA claim, and an employer that prefers federal court should evaluate removal early, because the time to remove runs from service and is short, and a late decision leaves the case where the employee filed it.

How does a court review a denied severance claim?

It depends on the plan’s wording. In Firestone Tire & Rubber Co. v. Bruch (1989) 489 U.S. 101, the Court held that “a denial of benefits challenged under § 1132(a)(1)(B) is to be reviewed under a de novo standard unless the benefit plan gives the administrator or fiduciary discretionary authority to determine eligibility for benefits or to construe the terms of the plan.”

That sentence is the reason careful severance plans grant discretion in writing. With a clear grant, a court generally asks whether the administrator abused that discretion, which is a more deferential review than deciding the question fresh. Without one, the court decides for itself what the plan means and whether the employee qualifies, which gives the employee a fresh chance to argue that the plan language favors a payment the administrator refused.

The plan’s claims process matters too. Under 29 U.S.C. § 1133, every plan must “provide adequate notice in writing” to a participant whose claim is denied, “setting forth the specific reasons for such denial,” and afford “a reasonable opportunity” for “a full and fair review.” A denial letter that skips those steps weakens the employer’s position later.

Does ERISA coverage create risks for the employer too?

Yes, and they should be weighed before arguing preemption. A plan comes with administrative duties. Under section 1132(c)(1), an administrator who fails to furnish information ERISA requires within 30 days of a participant’s request, unless the failure results from matters reasonably beyond the administrator’s control, “may in the court’s discretion be personally liable” in an amount “up to $100 a day.” A severance program that has been run informally for years, with decisions made by email and no formal document, may not have the plan document and summary materials a participant can ask for.

Fees cut both ways as well. Section 1132(g)(1) says the court “in its discretion may allow a reasonable attorney’s fee and costs of action to either party.” An employer should decide whether the plan theory is worth it before committing to it in a first responsive pleading.

What should an employer do when sued over severance?

1. Preserve the severance policy and every version of it, the plan document and any summary given to employees, the separation agreement if one was signed, and emails and texts about the employee’s eligibility under a litigation hold.
2. Calendar the response deadline, and check the plan’s claims procedure, any arbitration agreement, and the EPLI and fiduciary liability policies for notice requirements.
3. Identify who decided the employee’s eligibility, who administers the severance program, and how the program has been applied to other departing employees.
4. Pull the documents the claim depends on, such as the plan’s discretion clause, the denial letter and any appeal, and the payroll records showing what was paid.
5. Talk to a lawyer before responding to the complaint, removing the case, or paying anything outside the plan’s terms.

Employers in these disputes can find more on severance and benefits dispute defense for California employers on the firm’s employment defense page. For a separation agreement term that bars the employee from returning, see the post on no-rehire clauses under CCP 1002.5.

ERISA severance questions from California employers

Is every written severance policy an ERISA plan?

Not necessarily. Fort Halifax focused on whether the obligation requires an ongoing administrative scheme. A policy that pays a formula benefit to every departing employee who meets criteria, with someone applying those criteria, often qualifies. A policy that’s rarely used and requires no judgment calls may not. The answer depends on how the program actually operates, so the employer’s practice is as important as its paperwork.

Can a one-time separation agreement become an ERISA plan?

A single agreement paying one employee a lump sum usually doesn’t create the “administrative scheme” Fort Halifax described. The analysis can change when the agreement promises payments over a long period, continued benefits that need management, or terms the employer has to apply with discretion. Agreements built from a standard program can also be part of that program’s plan.

Does ERISA preempt Labor Code claims about final pay?

Preemption reaches state laws that “relate to” a covered plan. A claim seeking severance benefits under an ERISA plan is a strong preemption candidate. A claim about unpaid wages for hours worked doesn’t depend on the plan and is generally outside it. Complaints that blend the two should be sorted claim by claim, since preemption may remove some counts and leave others.

Should our severance plan give the administrator discretion?

That’s a drafting decision for counsel, and many plans do include one. A clear written grant of authority to decide eligibility and interpret the plan usually earns a more deferential review in court. The grant only helps if the administrator uses it carefully, with written reasons and a real review of any appeal.

If a former employee has sued your company over severance pay

If a former employee says your company owes severance and has sued in state court, the plan documents and how the program has been run usually decide whether ERISA controls the case. Rosenberger + Kawabata represents employers defending employment lawsuits and claims through its business litigation practice, including claims involving disputed severance benefits. Contact Rosenberger + Kawabata online for a confidential consultation, or call (310) 894-6921.

Sources

The statutes are 29 U.S.C. § 1002, § 1132, § 1133, and § 1144. The decisions are Fort Halifax Packing Co. v. Coyne (1987) 482 U.S. 1 and Firestone Tire & Rubber Co. v. Bruch (1989) 489 U.S. 101.

This post is general information about California and federal employment law as of November 7, 2026. It is not legal advice, and reading it does not create an attorney-client relationship. Employment statutes, regulations, and court decisions change often, and the outcome of any claim depends on its facts. Past results do not guarantee future outcomes.