NOTE
SSA is no longer accepting magnetic media. Please use the file upload process currently available with Social Security Number Verification Service (SSNVS).
Go directly to Business Services Online to register or login to the Social Security Number Verification Service.
By selecting this link, you can:
• Log In
• Register or;
• Complete Phone Registration
• Register or;
• Complete Phone Registration
Business Services Online (BSO)
Application Hours of Availability
Monday - Friday: 4:15 AM - 1 AM ET
Saturday: 5 AM - 11 PM ET
Sunday: 8 AM - 11:30 PM ET
Saturday: 5 AM - 11 PM ET
Sunday: 8 AM - 11:30 PM ET
About W-2 Filing
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W-2 Filing Assistance
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- Paper Forms W-2 & Instructions
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