Business Services Online (BSO)
BSO is a suite of business services for companies to conduct business with the Social Security Administration. BSO consists of Registration Services, Employer Services (Submit a Wage File, W-2 Online,
View Status, View Notices, and View Errors), and Social Security Number Verification Service (SSNVS). You must be a registered BSO
user to use these services. Other services will be added in the future.
Login
If you have already registered, login to use BSO services and to maintain your BSO account.
Registration
If you have not registered for Business Services Online and need to obtain a Personal Identification Number (PIN) and password,
select Registration.
BSO and Registration:
Have a question? Call 1-800-772-6270
Monday through Friday, 7:00 a.m. to 7:00 p.m. Eastern Time to speak
with Employer Customer Service personnel.
For TDD/TTY call 1-800-325-0778.
Employer Services Liaison Officers (ESLO):
Our Employer Services Liaison Officers and staff in regional offices across the country can help
you with information and expertise. To find the specialist in your area, check out the current
list of Employer Services Liaison Officers.
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