File your Form 5500 series with ease. Access resources and official guidance for plan reporting and compliance.Form 5500 (annual report) for each employee benefit plan. Any 403(b) plan that does not qualify for the ERISA exemption described in the previous questions is required to file a Form 5500 each year. Form 5500 communicates important information about an employer's benefit plans to the IRS and the Department of Labor each year. File Form 5500 to report information on the qualification of the plan, its financial condition, investments and the operations of the plan. Who Needs to File ERISA Form 5500? ERISA requires that the plan sponsor (employer) set forth the plan in writing and provide a summary plan description (SPD) to plan participants. Each separate ERISA plan with 100 or more participants enrolled at the beginning of the plan year is required to file a Form 5500. Retirement plan file.