403(b) Plan Prospecting: What the Form 5500 Shows, and What It Can't
Source: Instructions for the 2024 Form 5500 (read 2026-10-05) and the DOL Private Pension Plan Bulletin, Abstract of 2023 Form 5500 Annual Reports, Table A1 (read 2026-10-05).
Advisors who work the nonprofit retirement plan market run into a problem 401(k) prospectors rarely see: a plan they know exists, at an employer they can drive to, that is simply not in the data. That is not a glitch in anyone's database. Federal law decides which 403(b) plans report to the Department of Labor, and a large part of the 403(b) world sits outside that rule. Get the map right and 403(b) prospecting gets simpler, because you stop searching for plans that were never going to be there and start working the ones that are.
A quick definition. Per the IRS (page reviewed 2026-01-30; read 2026-10-05), only public educational institutions and 501(c)(3) tax-exempt organizations may establish a 403(b), and its accounts can be annuity contracts through an insurance company, custodial accounts invested in mutual funds, or retirement income accounts for church employees.
Which 403(b) plans file a Form 5500?
| Type of 403(b) arrangement | Files a Form 5500? | Why |
|---|---|---|
| A 501(c)(3) employer that contributes to the plan or runs it beyond a limited role | Generally yes | It is an ERISA-covered pension plan and reports like a 401(k), on the Form 5500 or, if small and eligible, the 5500-SF |
| A salary-deferral-only program with limited employer involvement | No | Under the 29 CFR 2510.3-2(f) safe harbor it is not "established or maintained by an employer": participation is voluntary, rights are enforceable solely by the employee, the employer's role is limited to listed tasks, and the employer takes no compensation beyond reasonable expenses |
| A public school, state college, or other governmental employer | No | Governmental plans are on the Form 5500 "Do Not File" list and are generally excluded from Title I of ERISA |
| A church plan | Usually no | Church plans are on the "Do Not File" list unless they elect ERISA coverage under Code section 410(d); an electing church plan files |
Source: Instructions for the 2024 Form 5500, Who Must File and Do Not File lists; 29 CFR 2510.3-2(f); and DOL Field Assistance Bulletin 2007-02, which notes that governmental and church plans generally are excluded from Title I and that the safe harbor covers programs funded solely through salary reduction agreements (all read 2026-10-05).
In practice: a K-12 district's 403(b) will not be in Form 5500 data, and neither will a church plan that never elected in. A private 501(c)(3) university or hospital that contributes to its 403(b) generally will be. Before you assume a filing exists, check whether the employer is governmental or church-affiliated.
How big is the 403(b) market in the filings?
Read together, those numbers describe a market unlike the 401(k) market. It is small in count, a sliver of the roughly 724,700 401(k)-type plans in the same bulletin, and heavily concentrated in larger plans. That matters, because larger plans are the ones that file Schedule C, attach an audit report, and show their provider roster. In 403(b) data, most of the money sits in exactly the filings that say the most.
That figure covers all 403(b) plans, filers or not, at a later date and on a different basis, so do not subtract one number from the other. It does tell you the Form 5500 view of the nonprofit retirement plan market is a partial one, and any tool built on it inherits that.
How to find 403(b) plans in Form 5500 data
- Plan characteristics codes. On line 8a, code 2L marks an annuity contract purchased by a 501(c)(3) organization or public school under Code section 403(b)(1), and 2M marks custodial accounts for regulated investment company stock under 403(b)(7). Those two codes are the cleanest 403(b) filter.
- Industry codes. The principal business code points you at the sectors where 403(b)s live, such as 611000 Educational Services, 622000 Hospitals, and 813000 Religious, Grantmaking, Civic, Professional and Similar Organizations. A business code does not show tax status, so a for-profit school appears next to a nonprofit one.
- Funding arrangement and Schedule A. A filing 403(b)(1) annuity arrangement marks "insurance" on line 9; a 403(b)(7) custodial arrangement marks "trust." Where a plan holds insurance contracts, Schedule A names the carrier, and a provider paid only through insurance fees and commissions listed there is left off Schedule C.
- The free route. All of these fields are in the DOL's Form 5500 datasets, free, with Schedules A, C, H, and I and the 5500-SF (read 2026-10-05). Looking up filings one plan at a time is covered in Form 5500 search.
Source: plan characteristics codes, line 9, Schedule C exceptions, and Codes for Principal Business Activity, Instructions for the 2024 Form 5500 (read 2026-10-05).
What is different about a 403(b) filing
- Older contracts can be off the report. The DOL's Field Assistance Bulletin 2010-01, which supplements FAB 2009-02, describes relief that lets a plan leave certain annuity contracts issued before January 1, 2009 out of its annual report when conditions are met, including that the employer stopped having any obligation to contribute to them before that date (read 2026-10-05). A long-standing employer's filing can understate what its staff still hold.
- Annuity and custodial structures report differently. Insurance-funded and trust-funded arrangements can put a provider and its compensation in different places, Schedule A or Schedule C, so read both before you name an incumbent.
- Size decides what you can see. Because most filing 403(b) assets sit in large plans, most of the money you prospect comes with a Schedule C roster and an audit report. The small 403(b) filers, like small 401(k)s, file no Schedule C.
None of that changes the job. You still need a specific, checkable reason for the first conversation, grounded in the sponsor's own filing, and you still need to spend your hours on the plans most likely to listen. How the general process works is in how to prospect 401(k) plans, which applies to an ERISA 403(b) step for step.
Where FiduciarySignal fits
FiduciarySignal is built on the same public DOL EFAST2 filings, so it sees the 403(b) plans that file and none of the ones that don't. The 401(k) Report Card grades any plan from its own Form 5500, the name notwithstanding: administrative cost against comparable peers, participation, red flags, and the provider roster, which is the filing-backed reason to call a nonprofit sponsor. The Change Predictor ranks the plans in your territory most likely to make a winnable provider change, back-tested against the next year's Form 5500 filings and strongest at the top of the list: calibrated likelihoods, never certainty about any single plan.
Bottom line: read its output with the map above in mind. A public school district or a non-electing church plan will not appear in FiduciarySignal, or in any other tool built on the Form 5500. FiduciarySignal publishes $90 a month after a 7-day free trial, or $900 a year; terms are on our pricing page. Built on public DOL EFAST2 data; not affiliated with the Department of Labor.
Related guides
- Form 5500 Prospecting: What a Plan's Filing Tells You — and What It Can't
- How to Prospect 401(k) Plans: The Six-Step Process
- Defined Benefit Plan Prospecting: How to Read a Pension Plan's Form 5500
Frequently asked questions
Do 403(b) plans file a Form 5500?
ERISA-covered 403(b) plans do, on the Form 5500 or, if small and eligible, the 5500-SF. Three groups do not: governmental plans, such as public school and state college 403(b)s; church plans that have not elected ERISA coverage under Code section 410(d); and salary-deferral-only programs that meet the DOL safe harbor in 29 CFR 2510.3-2(f).
Source: Instructions for the 2024 Form 5500 and 29 CFR 2510.3-2(f) (read 2026-10-05).
Why can't I find a school district's 403(b) in Form 5500 data?
Because it is a governmental plan, and governmental plans do not file. The Form 5500 instructions list governmental plans among the pension plans that do not file, and DOL guidance notes they are generally excluded from Title I of ERISA. To learn who serves a public-sector 403(b), you need the employer, not the filing.
Source: Instructions for the 2024 Form 5500 and DOL Field Assistance Bulletin 2007-02 (read 2026-10-05).
How many 403(b) plans file a Form 5500?
About 19,300 for plan years ending in 2023, per the DOL's Private Pension Plan Bulletin, with about 10.5 million participants and $767 billion in assets. Roughly 7,560 of them had 100 or more participants and held about 98% of those assets. The bulletin notes the count excludes 403(b)s that are exempt from filing.
Source: DOL Private Pension Plan Bulletin, Abstract of 2023 Form 5500 Annual Reports, Tables A1 and A1(a) (read 2026-10-05).
How do I identify a 403(b) plan in Form 5500 data?
Use the plan characteristics codes on line 8a: 2L for a 403(b)(1) annuity arrangement and 2M for 403(b)(7) custodial accounts. Business codes such as 611000 (Educational Services), 622000 (Hospitals), and 813000 (Religious, Grantmaking, Civic, Professional and Similar Organizations) narrow by sector, but they do not show tax-exempt status.
Source: Instructions for the 2024 Form 5500, plan characteristics codes and Codes for Principal Business Activity (read 2026-10-05).
Is the nonprofit retirement plan market worth prospecting?
It is concentrated rather than broad. The filing 403(b) market is about 7,560 large plans holding most of the reported assets plus about 11,740 small ones, a short list next to the roughly 724,700 401(k)-type plans in the same DOL bulletin. If you like larger, audited plans with a visible provider roster, that concentration helps; if you need volume, it is thin.
Source: DOL Private Pension Plan Bulletin, Abstract of 2023 Form 5500 Annual Reports, Tables A1, A1(a), and A1(b) (read 2026-10-05).
Does FiduciarySignal cover 403(b) plans?
It covers the ones that file. FiduciarySignal is built on public DOL EFAST2 Form 5500 filings, so ERISA-covered 403(b) filers are in its data, and governmental plans, non-electing church plans, and safe-harbor salary-deferral programs are not, as with any tool built on the same filings.
The filing 403(b) market is concentrated. See which plans in your territory are most likely to move first.
Built on 8.9M public Form 5500 filings. Back-tested against the next year's filings. Self-serve.
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