In this guide11 sections
The Employee Retirement Income Security Act (ERISA) is a 1974 federal law that sets minimum standards for most retirement, health, disability and life insurance plans offered by private employers. It gives you the right to see plan documents, requires the people running the plan to act in your interest, sets rules for how claims and appeals are handled, and lets you sue in court when benefits are wrongly denied. If you get benefits through a private-sector job in California, ERISA probably governs them.
Key takeaways
- ERISA covers most private-employer benefit plans, but generally not government plans, church plans, or plans kept only to comply with workers’ compensation, unemployment or state disability laws.
- You have a right to plan documents. If the administrator ignores a written request for 30 days, a court may impose a penalty of up to $110 a day.
- Most denied claims must go through the plan’s internal appeal first, and the evidence you submit there often becomes the record a court reviews.
- Your own 401(k) contributions are always 100% vested, and your employer cannot fire you to keep you from earning benefits.
- Deadlines are short and often set by the plan itself, so read every denial letter the day it arrives.
What ERISA covers
According to the U.S. Department of Labor, ERISA sets standards for most voluntarily established retirement and health plans in private industry. In practice, that includes:
- Retirement plans: 401(k) and 403(b) plans offered by private employers, pensions and profit-sharing plans.
- Welfare plans: employer group health insurance, short- and long-term disability, group life insurance and similar benefits.
Our ERISA practice page summarizes the kinds of benefit disputes we review.
ERISA generally does not cover plans run by government employers (such as a city, county, school district or the State of California), plans that churches maintain for their own employees, or plans kept only to comply with workers’ compensation, unemployment or disability insurance laws. California State Disability Insurance (SDI) and Paid Family Leave are state programs, not ERISA plans. See our guide to SDI and Paid Family Leave.
Your core rights under ERISA
| Right | What it means | Where it comes from |
|---|---|---|
| Information | Summary plan description, plan documents, annual reports and, for 401(k)-type plans, fee and investment disclosures | ERISA reporting and disclosure rules; 29 CFR §2550.404a-5 |
| Prudent, loyal management | People who control the plan or its money must act solely for participants | 29 U.S.C. §1104 |
| Fair claims process | Written reasons for a denial and a full and fair review on appeal | 29 CFR §2560.503-1 |
| Vesting | Your own contributions are always yours; employer money vests on a schedule | Plan document; federal vesting rules |
| Protection from interference | No firing, discipline or discrimination for using plan rights, or to block you from earning them | 29 U.S.C. §1140 (ERISA §510) |
| Court enforcement | Suits to recover benefits, enforce plan terms and remedy fiduciary breaches | 29 U.S.C. §1132 (ERISA §502) |
Getting your plan documents
Start with the summary plan description (SPD), which explains eligibility, benefits, how to file a claim and how to appeal. You can also ask the plan administrator in writing for the full plan document, insurance policy and other governing documents. If the administrator fails to provide requested information within 30 days, a court may hold the administrator personally liable for up to $110 a day, at its discretion (29 U.S.C. §1132(c)(1); 29 CFR §2575.502c-1).
Example (hypothetical): Luis asks his employer’s plan administrator in writing for his disability policy after a denial. Two months pass with no response. The delay does not stop his appeal deadline from running, so he files his appeal on time and notes the missing documents. A court may later consider the penalty.
Vesting: when the money is yours
Money you contribute from your paycheck to a 401(k) is always 100% vested. Employer contributions follow the plan’s vesting schedule. The IRS explains that a plan may vest employer money immediately, all at once after a set period (cliff vesting, no longer than three years for 401(k) employer contributions), or gradually (graded vesting, with full vesting by six years). You must be fully vested at normal retirement age or if the plan terminates.
ERISA §510 makes it unlawful to fire or discipline you to interfere with benefits you are about to earn. If you were let go just before a vesting date or pension milestone, the timing deserves a close look. Our wrongful termination page explains related California claims.
Fiduciary duties
Anyone with discretionary control over a plan or its assets is a fiduciary. ERISA requires fiduciaries to act solely in participants’ interest, with the care of a prudent expert, to diversify investments, and to follow plan documents that comply with the law. A fiduciary who breaches these duties can be personally liable to restore the plan’s losses (29 U.S.C. §1109). Our post on fiduciary responsibilities under ERISA goes deeper, including excessive 401(k) fees.
Claims, appeals and lawsuits
When a plan denies a claim, federal regulations require a written notice explaining the specific reasons, the plan terms relied on, what information would help, and how to appeal. You then generally must use the plan’s internal appeal before suing. For disability claims, you get at least 180 days to appeal; other plans may have different timelines, so check your SPD and denial letter.
The appeal is often your last real chance to build the record. In many ERISA cases, a court reviews mainly what was in the claim file, so missing medical records or statements can be hard to add later. If the appeal fails, you may sue to recover benefits under ERISA §502(a)(1)(B), in federal court or in state court. Fiduciary breach claims belong in federal court. A court may award reasonable attorney’s fees and costs.
The standard of review matters. If a plan validly gives the administrator discretion, courts often defer to its decision unless it was unreasonable. California Insurance Code §10110.6 voids discretionary clauses in life and disability insurance policies that cover California residents, which can lead a court to decide the claim fresh. Our guide to appealing a long-term disability denial covers that process step by step.
Key deadlines
| Step | General deadline | Source |
|---|---|---|
| Plan decision on a disability claim | 45 days, plus up to two 30-day extensions | 29 CFR §2560.503-1(f)(3) |
| Your appeal of a disability denial | At least 180 days after the denial | 29 CFR §2560.503-1(h)(4) |
| Plan decision on a disability appeal | 45 days, plus one 45-day extension | 29 CFR §2560.503-1(i)(3) |
| Response to a document request | 30 days, or a court may impose up to $110 a day | 29 U.S.C. §1132(c)(1) |
| Fiduciary breach lawsuit | Earlier of 6 years after the breach or 3 years after you learned of it (longer for fraud or concealment) | 29 U.S.C. §1113 |
| Lawsuit for denied benefits | Often set by the plan; disability denial letters must state any contractual deadline | Plan terms; 29 CFR §2560.503-1(j)(4) |
Evidence to keep
- Your SPD, plan document, insurance certificate and enrollment forms
- Every letter from the plan or insurer, with envelopes or email dates
- Benefit statements, 401(k) fee disclosures and pay stubs showing deductions
- Medical records and doctor statements for disability claims
- A log of every call: date, name, and what was said
Frequently asked questions
Is my public employer’s retirement plan covered by ERISA?
Generally no. Government plans, such as CalPERS or a school district plan, are not ERISA plans, though other laws protect them.
Can my employer take back money in my 401(k)?
Not the money you contributed, which is always fully vested. Unvested employer contributions may be forfeited when you leave, depending on the plan’s schedule.
Can I sue right after my claim is denied?
Usually you must finish the plan’s internal appeal first. For disability claims, if the plan does not follow the federal claims rules, you may be treated as having completed the appeal and can go to court.
Where can I get free help with a benefits question?
The Department of Labor’s Employee Benefits Security Administration offers benefits advisors at (866) 444-3272.
Can I be fired for asking about my benefits?
ERISA §510 prohibits firing or disciplining you for exercising plan rights, and California law adds protections in many situations.
Talk to a California employment lawyer
Employees First Labor Law represents workers exclusively. If you were denied benefits, lost benefits when you were fired, or have questions about how your plan is run, we offer free virtual consultations. Contact us or call (310) 853-3461.
This article is general information about California law as of 2026, not legal advice for your situation. Reading it does not create an attorney-client relationship.
