Valid Social Security Number (SSN)

Social Security number (SSN) refers to a unique identifying number (9 digits) assigned to US citizens and other residents to track income and determine benefits. SSNs are issued by the Social Security Administration. 

 

To be valid, the SSN must be:

Valid for employment
Issued before the due date of the tax return (including extensions).

Identifying Numbers are broken down as follows:
1 2 3 - 4 5 - 6 7 8 9
Area - Group - Serial

Social Security Number (SSN) Ranges

001-01-0001 through 665-99-9999
667-01-0001 through 899-99-9999
750-01-0001 through 763-99-9999
764-01-0001 through 899-99-9999
Important Note: When the SSN "Group" contains zeros, the SSN is a test SSN and the return will be rejected. When the SSN "Serial" contains all zeros, the return will be rejected.