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Supplement B of Form I-9 is used for rehiring employees or addressing issues related to reverification of work authorization. This supplement allows employers to reverify an employee’s employment eligibility without having to complete a new Form I-9.

When to use Supplement B?

According to the U.S. Citizenship and Immigration Services (USCIS), employers should use Supplement B in the following scenarios:
  • Rehire employee
    • If an employee is rehired within 3 years of the date they originally completed Form I-9, employers can use Supplement B to confirm that the employee remains authorized to work.
  • Reverify documentation
    • You must reverify an employee’s employment authorization no later than the date employment authorization expires. The employee must present a document that shows current employment authorization, such as any document from List A or C. You can also accept certain receipts for re-verification.
  • Name change
    • If an employee has a legal name change, Supplement B may be completed to maintain the correct information on the form. For additional name change scenarios you may encounter, please refer to the USCIS website for guidance.

Who should complete Supplement B?

The employer or the employer’s authorized representative completes and signs Supplement B. Employers are required to retain Supplement B along with the original Form I-9 as part of their records and ensure compliance with federal employment eligibility verification laws. Read more about document retention here: I-9 Document Retention & Storage Requirements.

Employees Ineligible for Reverification

According to the DHS, employers should not reverify any one of the following:
  • U.S. citizens and alien nationals
  • Lawful permanent residents who presented a Form I-551, Permanent Resident or Alien Registration Receipt card for Section 2, including conditional residents
  • List B documents

Supplement B