Form 5500 Requirements for Benefits Plans
Form 5500 is a plan-level annual report, not simply another corporate tax return. Filing depends on plan type, funding, participant count, plan structure, and available exemptions.
Reviewed July 29, 2026 · Source-led practitioner reference
Who generally files
ERISA pension plans and many welfare benefit plans file annually. An unfunded, fully insured, or combination unfunded/insured welfare plan with fewer than 100 participants at the beginning of the plan year may qualify for the small-welfare-plan exemption. Retirement plans generally do not receive that welfare-plan exemption.
Small versus large plan
| Classification | General rule |
|---|---|
| Small plan | Generally fewer than 100 participants at the beginning of the year; some plans may use the 80–120 participant rule |
| Large plan | Generally 100 or more participants; additional schedules and an independent audit may apply |
| Form 5500-SF | Available only to qualifying small plans that meet all applicable conditions |
Calendar-year deadline
The return is generally due the last day of the seventh month after plan-year end—July 31 for a calendar-year plan. Form 5558 can provide an extension when timely and properly filed. Form 5500 and 5500-SF filings are electronic through EFAST2.
Control checklist
- Confirm the plan number, plan year, sponsor, administrator, and participating employers.
- Determine filing status and exemption separately for each plan.
- Reconcile participant counts, Schedule A data, trust assets, contributions, and service-provider information.
- Resolve audit and schedule requirements early.
- Review, authorize, file, and retain the signed filing package and acceptance status.
Turn reference knowledge into working confidence.
Use this public guide for quick orientation and source review. Inside PrepToPay Benefits, you can study the topic in structured lessons, practice applying it, review flashcards, and track your progress.
Primary sources
Educational reference only. Plan documents, governing law, agency guidance, and plan-specific professional advice control.
Keep building your Benefits control system.
Next, control both Medicare-eligible participant notices and the separate CMS disclosure.