USCIS · Employment

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Employment Eligibility Verification

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What Is Form I-9?

Form I-9 is required by federal law for every person hired in the United States. Employers use this form to verify the identity and employment authorization of individuals. Both the employee and employer must complete their respective sections, and the employer must examine acceptable documents.

Agency
USCIS
Category
Employment
Form Number
Form I-9
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Who Needs Form I-9?

Every newly hired employee in the United States
Employers onboarding new staff
HR departments managing compliance
Employees whose employment authorization documents have expired and need reverification

How to Fill Out Form I-9 — Step by Step

1

Section 1 (Employee): Enter your full legal name, including other last names used.

2

Provide your current address, date of birth, and Social Security number (required if employer uses E-Verify).

3

Select your citizenship/immigration status: U.S. Citizen, Noncitizen National, Lawful Permanent Resident, or Alien Authorized to Work.

4

If applicable, enter your USCIS number, Form I-94 admission number, or foreign passport information.

5

Sign and date Section 1 no later than your first day of employment.

6

Section 2 (Employer): Examine original identity and work authorization documents presented by the employee.

7

Record document title, issuing authority, document number, and expiration date for each List A document (or one List B + one List C document).

8

Enter the employee's start date, sign, and date the certification.

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Common Mistakes to Avoid

Completing Section 1 before the job offer is accepted (it must be done after acceptance but no later than the first day of work)
Employer completing Section 1 for the employee (only the employee may fill it out, though a preparer/translator can assist)
Accepting expired documents — all documents must be current and unexpired
Not completing Section 2 within 3 business days of the employee's start date
Requiring specific documents instead of allowing the employee to choose from the acceptable list

Frequently Asked Questions

How long must an employer keep the I-9 on file?

Employers must retain the I-9 for three years after the date of hire or one year after employment ends, whichever is later.

Can I-9 be completed remotely?

DHS has authorized an alternative procedure allowing virtual document examination for E-Verify employers. Otherwise, the employer or authorized representative must physically examine the original documents.

What documents are acceptable for the I-9?

List A documents (proving both identity and work authorization) include a U.S. passport or permanent resident card. Alternatively, one List B document (identity, e.g., driver's license) and one List C document (work authorization, e.g., Social Security card) are accepted.

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