The SSN can be formatted with or without dashes, but must not contain spaces or additional characters. Cannot be equal to sequential numbers, or all repeating digits.


Acceptable SSN formats include: 123-45-6789 OR 123456789



When entering Social Security numbers into your spreadsheet, we recommend using Excel’s Special formatting for Social Security numbers:


Excel%20Format%20-%20Special%20-%20SSN.PNG



See Also: Employee Datasheet Field Requirements