I-9 Technical vs. Substantive Violations: Penalties and Cure Window

On a Form I-9, technical violations are minor clerical errors that you get at least 10 business days to fix, while substantive violations are fundamental defects that carry civil penalties of $288 to $2,861 per form with no mandatory cure period.¹ The line between the two categories is drawn by whether the error prevents the government from verifying that a worker is authorized. If verification can still happen through the form or through corroborating records, the error is technical. If it cannot, the form has failed its purpose, and Immigration and Customs Enforcement treats it as substantive.

Why the Classification Matters

Section 274A(b)(6) of the Immigration and Nationality Act creates a safe harbor for technical or procedural failures when the employer made a good faith attempt to comply.² That safe harbor is the whole reason the categories exist. A technical failure identified during an ICE audit gets a Notice of Technical or Procedural Failures and a chance to cure. A substantive violation gets a fine.

ICE updated its enforcement framework in March 2026, narrowing what qualifies as a technical failure and expanding the substantive category. The classification once guided by the 1997 Virtue Memorandum now sits under the current ICE guidance, and several errors that employers historically treated as fixable clerical slips are now scored as substantive from the start.

What Counts as a Technical or Procedural Failure

The current ICE guidance classifies the following as technical or procedural failures:

Using a Form I-9 that was not the current version at the time any part of the form was initially completed.
Failing to include other last names used or a physical address in Section 1. A missing email address or phone number in Section 1 is not a violation at all.
An incorrect Social Security number in Section 1, but only if the employer uses E-Verify for the employee.
Failing to record the employee’s complete name in the Section 2 header at the top of page 2.
Leaving the employer’s business name or physical address blank in Section 2.
Failing to record the employee’s full name at the top of Supplement A or Supplement B, or failing to record a new name in Supplement B when applicable.

What ties these errors together is that none of them stops the government from confirming a worker’s authorization. A missing business address is a paperwork gap, not a verification failure. Where the underlying information can be corroborated through payroll or other company records, the error stays in the lower category.³

The E-Verify wrinkle catches employers off guard. The Social Security number field in Section 1 is voluntary for most employees, but if your company is enrolled in E-Verify, the employee must provide it.⁴ An incorrect number in that situation is technical. A missing number when E-Verify requires one is a more serious problem.

What Counts as a Substantive Violation

Substantive violations reflect either a complete breakdown in the verification obligation or an error so fundamental that the form cannot serve its purpose. ICE does not offer a cure period for these findings, and each one can trigger a per-form fine.³

The whole-form failures include:

No Form I-9 prepared at all for an employee.
A form that exists but is not produced for inspection during an audit.
Section 1 not completed by the employee’s first day of work, or Section 2 not completed within three business days of the hire date.⁵
Use of the Spanish-language form outside Puerto Rico. The Spanish version can only be officially completed and retained there.
Electronic completion, retention, or signature systems that fail to meet federal standards.

Inside Section 1, substantive errors include the employee failing to provide a legal name or date of birth, failing to check the attestation box indicating citizenship or immigration status, leaving the Alien Registration Number or USCIS Number blank when required, omitting the Form I-94 Admission Number or foreign passport information for work-authorized noncitizens, failing to sign the attestation, or failing to date the section. An unsigned Section 1 effectively means no attestation happened.

Inside Section 2, substantive errors include failing to examine acceptable identity and employment authorization documents within three business days, and failing to record the document title, issuing authority, document number, or expiration date for any document presented. The employer must also sign and date Section 2 and record the employee’s first day of employment.⁵ Missing any of these makes the form substantively deficient.

What the Penalties Actually Look Like

Civil penalties for substantive violations and for uncorrected technical failures range from $288 to $2,861 per form. Those figures were set by the January 2025 inflation adjustment published in the Federal Register.¹ The Office of Management and Budget cancelled the 2026 inflation adjustment because the Bureau of Labor Statistics lacked the required CPI data following a government shutdown, so the 2025 levels remain in effect for 2026.⁶

ICE calculates a “violation percentage” by dividing the number of substantive violations and uncorrected technical failures by the total number of forms that should have been presented. That percentage, combined with whether the audit is the first, second, or later offense, sets the base fine range within $288–$2,861. Five statutory factors then adjust the final amount: business size, good faith, seriousness of the violations, whether unauthorized workers were involved, and history of previous violations.³

The math scales quickly. A company with 200 employees and a 30% substantive violation rate could face base fines on 60 forms. Even at the low end, that is over $17,000 before ICE applies aggravating factors. At the high end, a single audit could exceed $170,000.

The 10-Business-Day Cure Window

When ICE identifies technical or procedural failures during an audit, it issues a Notice of Technical or Procedural Failures. The statute guarantees at least 10 business days from the date of that notice to make corrections.² The clock starts when the notice is served, not when the envelope is opened. Miss the deadline, and every uncorrected technical failure automatically converts into a substantive violation carrying the same $288–$2,861 per-form penalty.

That conversion is where the two categories collapse into one. A technical failure only stays technical if it gets fixed inside the window. Employers with scattered I-9 files across multiple offices can burn the entire 10 days just locating the forms.

How to Correct Errors the Right Way

The correction process is designed to preserve the form’s history. Draw a single line through the incorrect or missing information, enter the correct data nearby, and initial and date the change. Do not use correction fluid or black out the original text. Inspectors need to see what was there before and what changed.⁷

Who makes the correction depends on where the error sits. Only the employee, or their preparer or translator, can fix mistakes in Section 1. Only the employer or authorized representative can correct Section 2 or Supplement B. If an employer crosses out something in Section 1, that itself becomes a compliance problem.

When a form has so many errors that line-through corrections would make it unreadable, complete the relevant section on a new Form I-9 and attach it to the original with a note explaining why. The original stays in the file.⁸ If correction fluid was already used on a form, attach a signed and dated explanation rather than redoing the form from scratch.

Electronic storage adds requirements. The system must maintain an audit trail showing every action performed within it, and during an inspection you must provide the hardware, software, and personnel necessary to locate, retrieve, and reproduce any stored form and its audit trail.⁹ The system also needs reasonable controls against unauthorized creation, alteration, or deletion, and it must produce legible hard copies on demand.¹⁰

Good Faith Is a Condition, Not a Given

The statutory safe harbor for technical failures only applies to an employer who made a good faith attempt to comply.² Good faith is more than intent. It shows up in consistent procedures, training documentation, timely form completion, and organized files. A company with 95% of its I-9s complete and a few missing addresses looks very different from one with 40% of its forms incomplete.

Compliance history matters. A business that received a previous notice of technical failures, corrected them, and then shows the same errors in a later audit has effectively forfeited the good faith argument. ICE reads repeated identical failures as a signal that the employer is not actually trying. Good faith is also entirely unavailable to any employer engaging in a pattern or practice of hiring unauthorized workers, no matter how tidy the rest of the paperwork looks.

Find the Problems Before ICE Does

The most reliable way to keep technical errors from becoming substantive fines is to find and fix them before an audit begins. ICE and the Immigrant and Employee Rights Section have published joint guidance for employers conducting internal I-9 audits.⁸ A voluntary audit lets you identify missing forms, correct technical errors, and address procedural gaps on your own schedule instead of a 10-day clock.

Pull every active employee’s Form I-9 and check it against the current requirements. Look for the errors ICE is most likely to score as substantive: missing signatures, unchecked attestation boxes, incomplete document information in Section 2, and forms completed after the deadline. Fix what you can with the standard line-through method, and for forms with extensive problems, complete a new section on a fresh form and attach it to the original with a written explanation. A documented history of self-auditing also strengthens the good faith argument if ICE does arrive, because the record shows an active effort to get it right.

1
Federal Register. Civil Monetary Penalty Adjustments for Inflation
2
Office of the Law Revision Counsel. 8 USC 1324a – Unlawful Employment of Aliens
3
U.S. Immigration and Customs Enforcement. Form I-9 Inspection Under Immigration and Nationality Act Section 274A
4
U.S. Citizenship and Immigration Services. Completing Section 1 – Employee Information and Attestation
5
U.S. Citizenship and Immigration Services. Completing Section 2, Employer Review and Attestation
6
The White House. Cancellation of Penalty Inflation Adjustments for 2026
7
U.S. Citizenship and Immigration Services. 9.0 Correcting Errors or Missing Information on Form I-9
8
U.S. Citizenship and Immigration Services. Self-Audits and Correcting Mistakes
9
U.S. Citizenship and Immigration Services. 10.3 Inspection
10
eCFR. 8 CFR 274a.2 – Verification of Identity and Employment Authorization