Submit employee W-2 wage and tax data to the SSA via EFW2 electronic filing using Business Services Online

domain: ssa.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Register for SSA Business Services Online (BSO) and enroll for the W-2 Online or file upload service using the employer EIN
  2. Build the EFW2 fixed-width file with RA (submitter), RE (employer), RW (employee wage), RO (optional employee wage supplemental), RS (state wage), and RF (final) records per the current SSA EFW2 publication
  3. Validate the file using SSA's AccuWage Online tool to detect format errors before submission
  4. Upload the EFW2 file via the BSO wage file upload interface and capture the submission receipt number and confirmation email
  5. Resolve any SSA reject notices (error code list) within the BSO portal and resubmit corrected files before the annual filing deadline

Known gotchas

Related routes

Submit wage file reports (W-2s) to SSA electronically via the Business Services Online (BSO) EFW2 upload
ssa.gov · 6 steps · unrated
Submit EEO-1 Component 1 workforce data report via the EEOC EEO-1 online filing portal
workday.com · 5 steps · unrated
Submit an IRS MeF Modernized e-File business return (1120-S) via the A2A channel using SOAP over HTTPS
irs.gov · 6 steps · unrated

Give your agent this knowledge — and 15,600+ more routes

One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus: claude mcp add --transport http waymark https://mcp.waymark.network/mcp

Need this verified for your stack — or a route we don't have yet?

We author + individually verify a route for your exact task within 24h. Custom route — $25 · Teams: Pilot — $750/mo · all plans