Retirement Plan Research Guide  ·  Updated July 2026

Almost every private-sector retirement and health plan in the country files an annual report called the Form 5500. It is one of the most transparent records in American finance: the U.S. Department of Labor publishes the filings for roughly 844,000 plans, covering about 158 million workers and retirees and nearly $13 trillion in assets. If you know where to look, you can pull the annual report for almost any employer’s 401(k) in a couple of minutes.

People search for a Form 5500 for all kinds of reasons. An employee wants to confirm the health of a workplace 401(k). A financial advisor is researching a prospect’s plan. An M&A or benefits team is running due diligence. A plan sponsor simply needs a copy of a filing their prior provider submitted. This guide walks through exactly how to find and read a Form 5500, why some plans never show up in the public search, and what the numbers on the filing actually tell you.

How to Search Form 5500 Filings on EFAST2

The only official, free, and complete source of Form 5500 filings is the government’s EFAST2 system – the ERISA Filing Acceptance System run by the Department of Labor’s Employee Benefits Security Administration. Third-party sites generally repackage the same public data, sometimes with additional search features or analytics. For many users, the EFAST2 database provides the information needed at no cost.

Can’t Find a Plan? The Reasons a Form 5500 Won’t Show Up

If a plan does not appear in the search results, there are several common explanations to consider. Work through these before assuming a filing does not exist.

The legal name is different from the brand name

Plans are filed under the sponsor’s legal entity, which is often a holding company or an “Inc.” or “LLC” name you would not recognize from the storefront. Try searching by EIN if you have it, or use the asterisk to test variations of the corporate name.

The filing window has not closed yet

Form 5500 filings run about seven months behind the plan year, and many plans extend beyond that. A plan’s most recent year may simply not be filed yet, so the latest report you find could be a year or more old even for a fully compliant plan.

The plan is genuinely exempt or delinquent

Some small, unfunded, or fully insured welfare plans are exempt from filing, and church and government plans generally are not covered by these rules. In other cases, the plan simply failed to file – which is a compliance problem in its own right. If you received a government notice about a missing or incorrect filing, our guide on what an IRS or DOL retirement plan notice means and how to fix it is the right next step.

What Is Form 5500 and Who Has to File One?

The Form 5500 is the annual return and report that most employer-sponsored benefit plans file to satisfy the reporting requirements of ERISA and the Internal Revenue Code. It is filed jointly for the Department of Labor, the IRS, and the Pension Benefit Guaranty Corporation, and it gives regulators, participants, and the public a window into a plan’s finances, investments, and operations. For a fuller primer on the form itself, see our companion article on everything you need to know about Form 5500.

There are three forms in the series, and which one a plan files depends on its size and structure:

If you want the practical filing mechanics – the documents to gather, the schedules involved, and what to expect from the process – our walkthrough on Form 5500 documents, deadlines, and what to expect covers it in depth.

What a Form 5500 Actually Tells You

Pulling the filing is only half the job. Once the PDF is open, a few areas carry most of the useful information:

• Participant counts. The form reports how many people the plan covers and how many hold account balances. Sudden swings can signal turnover, a corporate change, or a plan approaching the audit threshold.
• Plan assets and financial activity. The financial schedules (Schedule H for large plans, Schedule I for many small plans) show total assets, contributions, distributions, and expenses for the year.
• The independent audit. For large plans, an attached auditor’s report and opinion is a strong indicator of how carefully the plan is run. A qualified or adverse opinion is worth a closer look.
• Service providers and fees. Schedule C reports what a plan pays its service providers, and Schedule A reports its insurance contracts. Both attach only to the full Form 5500 – the 5500-SF and 5500-EZ are standalone forms that carry no schedules – and Schedule C is required only for large plans. So when a filing does not include one of these schedules, it usually means the schedule was not required for that plan, not that the information is missing or being withheld.

That is worth separating from genuine confidentiality. Most of the return is open to public inspection, but a few schedules that contain sensitive participant data, such as the deferred vested participant statement, are deliberately kept confidential and are not part of the public file. A missing Schedule C on a small plan is a “not required” case; the withheld participant schedules are a privacy case.

2025 Plan Year Deadlines, Penalties, and a Rule That Changed Who Gets Audited

Current deadlines

The Form 5500 is due the last day of the seventh month after the plan year ends. For a calendar-year plan, that means the 2025 plan year filing is due July 31, 2026. Filing IRS Form 5558 by that date extends the deadline two and a half months, to October 15, 2026. Most sponsors also have to distribute a Summary Annual Report to participants within two months after the filing deadline.

What a missed filing costs

Penalties for a late or missing Form 5500 are steep, and two agencies can assess them for the same failure:

• The Department of Labor can assess up to $2,739 per day, with no cap, for a late or incomplete filing.
• The IRS can separately assess $250 per day, up to $150,000 per plan year.
• Sponsors who come forward before the DOL contacts them can use the Delinquent Filer Voluntary Compliance Program (DFVCP) to cap penalties at a small fraction of that exposure. One-participant plans use a separate IRS relief program instead.

If a search turns up a gap in your own plan’s filing history, acting voluntarily is almost always cheaper than waiting for a notice. Our team handles exactly these situations through our consulting and correction services.

The 2023 participant-count change is still reshaping audits

For plan years beginning on or after January 1, 2023, the government changed how defined contribution plans count participants for the 100-participant audit threshold. Plans now count only participants who actually hold an account balance at the start of the plan year, rather than every eligible employee whether or not they ever contributed. The practical effect is significant: many plans that were near the line have moved from “large” to “small” status and no longer need an independent audit. If you are checking whether a plan should have an audited financial statement attached, this is the rule that decides it – and it is the reason some recent filings look different from older ones for the same plan.

When It Makes Sense to Bring in Help

Searching and reading a Form 5500 is straightforward. Preparing an accurate one, meeting the audit requirement, and fixing a filing that went wrong are not.

Frequently Asked Questions

This article is provided for general informational purposes and does not constitute legal, tax, or investment advice. Filing requirements depend on the specific facts of your plan.