How to check an I-9 form for correct completion in hiring

Part of our guide on compliance e-learning for 50 employees

This guide shows exactly how to check an I-9 form for errors and omissions to keep your hiring compliant and efficient.

What is the I-9 form and its purpose

The I-9 form verifies employee identity and work eligibility in the U.S. It is required for all new hires.

Employers must complete the form within three days of hire to comply with federal law.

The goal is to ensure only authorized workers are employed and avoid legal penalties for noncompliance.

The I-9 form applies to all employees regardless of citizenship status, including U.S. citizens, permanent residents, and foreign workers authorized to work in the U.S. The other half of this decision is laptop bundles for new managers.

Employers must retain each employee's completed I-9 form for three years after the hire date or one year after employment ends, whichever is later. This retention helps during government audits or inspections.

Failure to comply with I-9 requirements can lead to fines ranging from several hundred to thousands of dollars per violation, making careful form completion critical.

How to access and obtain an I-9 form

You can download the latest I-9 form from the official U.S. Citizenship and Immigration Services (USCIS) website.

Always use the current version to avoid outdated fields or instructions.

Keep a digital copy for easy access and allow printing for physical completion if needed.

Besides the USCIS website, some payroll software platforms include the I-9 form and store completed versions digitally for ease of management and compliance.

Employers can request employees to fill Section 1 electronically before the first day of work using the official electronic I-9 system provided by USCIS.

Paper forms should be printed double-sided if possible to save space and avoid losing pages during filing.

Step-by-step how to check the form fields

Check Section 1 for employee details: full name, address, date of birth, and Social Security number if provided.

Verify employee signature and the date signed are present and match the hire date within three business days.

Review Section 2 to ensure the employer reviewed original documents establishing identity and work authorization.

Confirm the document title, issuing authority, document number, and expiration date (if any) are legibly entered.

Look at Section 3 only if re-verification or rehires apply, and ensure appropriate dates and signatures exist.

Check that the employee's name matches exactly on all documents presented and on the form. Any nicknames or initials should be avoided unless they appear on the documents.

If the employee claims a Social Security number but leaves it blank, confirm whether they are exempt or failing to provide it, as this affects tax reporting.

For example, if an employee signs Section 1 on January 3rd and was hired on January 1st, the form is timely; signing on January 10th would be late and a compliance issue.

1. 1. Confirm Section 1 is fully completed with no blank required fields.
2. 2. Verify employee signature and date are filled and timely.
3. 3. In Section 2, check documents match acceptable List A, B, or C categories.
4. 4. Validate document numbers and expiration dates against original documents.
5. 5. For rehires, ensure Section 3 is properly completed.
6. 6. Keep a copy of the completed form for your records.

Common errors to look for

Missing employee or employer signatures is the most frequent error and triggers audits.

Dates not entered or outside the allowed 3-day period create compliance risks.

Unclear or missing document expiration dates can lead to invalid verification.

Using expired documents or photocopies instead of originals is a compliance failure.

A common mistake is leaving the expiration date blank for documents that require it, such as employment authorization cards, which can invalidate the verification.

Employers sometimes fill in information incorrectly, such as mixing document numbers for List A and List B items, which signals carelessness during audits.

An unclear signature or missing date can cause delays in payroll processing until corrected, showing how minor errors have practical impacts.

• Signature missing – ensure both employee and employer have signed and dated.
• Date errors – check for hire date alignment and timely signing.
• Document validity – confirm expiration dates and original documents.
• Incomplete sections – all required fields must be filled without blanks.

Is the I-9 form a background check

The I-9 form is not a background check. It only confirms eligibility to work in the United States.

Employers do not verify criminal records or employment history through I-9.

Separate background checks require other forms and processes outside the I-9.

How to correct errors on the I-9 form

Use corrective lines to cross out errors without obscuring original entries.

Initial and date each correction to show an authorized change.

Do not use correction fluid or erase errors as it invalidates the form.

If errors are significant, prepare a new form but retain the original for audit history.

When correcting errors, do not use a whiteout tape or fluid to hide the original entry; the correction must remain transparent during audits.

If multiple corrections are made, add a brief note at the end of the form explaining why changes were necessary to provide context.

After correction, review the entire form again to ensure no new errors were introduced, and make a photocopy of the corrected version for backup.

1. 1. Identify the incorrect field(s).
2. 2. Cross out error with a single line, keeping writing visible.
3. 3. Write correction next to the error.
4. 4. Initial and date the correction.
5. 5. Inform the employee if their signature needs updating.
6. 6. Retain both corrected and original forms for records.

Questions people still ask

I've personally managed I-9 reviews and know systematic checks reduce costly errors.