Skip to main content
Social Security
Search
Menu
Español
Sign in
Employer MENU
Home
BSO Access and Registration
W-2 Filing
Verify SSNs
Reconciliation
What's New 2025
Taxpayer First Act
Social Security Number Verification Service (SSNVS) Handbook
SSNVS News
The
SSNVS News
web page provides important updates and information regarding SSN verification.
SSNVS Handbook
Table of Contents
SSNVS Handbook Home
Contact Information
What is SSNVS and BSO?
System Requirements
Security
SSNVS/BSO Availability
Registration
Access to SSNVS
Logging into SSNVS
Using SSNVS
Submission File Format
Returned File Format
SSN Verification Results
Status and Retrieval Options
Status and Retrieval Results
What To Do If An SSN Fails To Verify
Logging Out
SSNVS News
Getting Help
Employer Reporting Information
Maintaining Your Registration Information
Glossary of Terms
Appendix A: Additional Verification Options