Glossary

EFAST2

Department of Labor's electronic filing system for Form 5500-series returns.

Definition

EFAST2 (ERISA Filing Acceptance System II) is the DOL portal used to electronically transmit Form 5500, 5500-SF, and 5500-EZ returns. Filers register through Login.gov, obtain UserID and PIN, and either use IFILE (the free DOL web-based filer) or an EFAST2-approved third-party software. Solo 5500 Desk does not transmit through EFAST2.

Why it matters

For IRS Form 5500-EZ, this term helps decide which records, dates, values, or review questions belong in the packet.

How the tool uses it

Solo 5500 treats this as a review signal. The user enters the facts, checks the source-linked explanation, reviews the packet, and files through the official channel when the supported case still fits.

When to check the source

Check the official source when the answer depends on eligibility, late filing relief, official correspondence, valuation, or a fact you cannot verify from your own records.

Source and review date

Last reviewed: . Use the linked source for the official wording behind this term.

Official source: EFAST2

Related terms

IFILEDOL's free browser-based filer used to submit Form 5500-series returns through EFAST2.Form 5500-EZIRS annual return for one-participant retirement plans (owner-only Solo 401(k), partner-spouse plan, or foreign plan).