Why Storing Form I-9s in More Than One System Is a Compliance Risk
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Reverification is the step employers get wrong more than any other part of the Form I-9 process. It is the act of confirming, on or before the day an employee's temporary employment authorization expires, that the person is still authorized to work in the United States. Get the timing or the paperwork wrong and you are not looking at a correctable clerical slip — under current enforcement, a late reverification is a substantive violation that carries a per-form fine with no grace period.
This guide covers the three questions HR and compliance teams ask most: when reverification is actually required (and the common situations where it is never required), how to complete it correctly using Supplement B, and what it costs when an employer misses the deadline. Every rule below is drawn from the USCIS M-274 Handbook for Employers, USCIS I-9 Central, and the federal penalty schedule.
Reverification is the process of re-confirming a current employee's continued authorization to work when their previous employment authorization expires. It is documented on Supplement B, Reverification and Rehire (formerly Section 3 of the Form I-9), which attaches to the worker's original I-9 — you do not start a new form. The trigger is the expiration of the employee's employment authorization, not the expiration of the document they originally presented.
The answer to "when do I reverify?" is governed by a single date: the employment authorization expiration date recorded in Section 1 of the original Form I-9. When that date arrives, the employee must present a document that proves continued authorization, and you must record it on Supplement B before authorization lapses, per the USCIS guidance on Supplement B.
Reverification is required when an employee's temporary employment authorization is expiring. The most common triggers are:
One nuance trips up even experienced teams: reverification is triggered by the employment authorization expiration date in Section 1, not the document expiration date in Section 2. When the two differ, use whichever is earlier. For a deeper walk-through of the trickier status-change scenarios — OPT to H-1B, H-1B extensions and transfers, and the move from a temporary status to lawful permanent residence — see our companion guide on I-9 reverification when visa status changes.
Reverification rules also reach rehires. Under the M-274, when you rehire a former employee you generally complete a new Form I-9 — unless the rehire occurs within three years of the date the employee's original I-9 was completed. In that window, you may either complete a new form or use Supplement B on the original I-9 to record the rehire (and reverify employment authorization if it has since expired). The same continuing-employment treatment applies to situations such as approved leaves of absence, temporary layoffs with a return, promotions or reassignments, and certain corporate mergers and acquisitions, as set out in the M-274 Handbook for Employers. Our breakdown of whether a rehire needs a new I-9 covers the three-year rule in detail.
Reverifying when you are not supposed to is its own compliance problem — over-documentation can violate the anti-discrimination provision of the Immigration and Nationality Act. You do not reverify in these situations:
The principle: reverification confirms continued work authorization, not identity, and not the validity of any particular card. If the underlying authorization is permanent, an expiring document does not require action.
Most reverification penalties come from two avoidable mistakes: reverifying someone you shouldn't, or missing the deadline for someone you should. i9 Intelligence helps employers build a tracking system that flags every upcoming expiration before it lapses. Run your exposure through our I-9 risk calculator, book a free compliance call, or book a demo to see how automated reverification tracking works.
Reverification is recorded on Supplement B, attached to the original Form I-9. The steps:
A restricted Social Security card — one annotated "NOT VALID FOR EMPLOYMENT," "VALID FOR WORK ONLY WITH INS AUTHORIZATION," or "VALID FOR WORK ONLY WITH DHS AUTHORIZATION" — is not acceptable for reverification.
Some EAD holders qualify for an automatic extension of their existing card while a renewal is pending, which can postpone the reverification date. The extension period is up to 540 days from the "Card Expires" date for eligible category codes — but only if the renewal application (Form I-765) was timely filed before October 30, 2025. Renewal applications filed on or after October 30, 2025 are not eligible for the automatic extension, per current USCIS guidance on automatic EAD extensions. When an automatic extension applies, you reverify at the end of the extension period, not the original card expiration date.
"The single most expensive reverification mistake we see is treating it like a paperwork formality you can catch up on later," says Patricia Duarte, Director of Compliance at i9 Intelligence. "There is no 'later.' If the Supplement B is signed even one day after authorization expires, you are continuing to employ someone whose work authorization has lapsed on your records — and ICE now treats that as a substantive violation, not a fixable clerical error."
A missed or late reverification is not a minor paperwork issue. Under the framework ICE applies today, more than ten error categories that were once treated as correctable "technical" violations — eligible for a 10-day cure period — have been reclassified as substantive violations subject to immediate fines, as documented in analysis of ICE's revised enforcement framework. A reverification completed late falls in this category.
The current civil penalty ranges, set by the inflation adjustment published in the Federal Register on January 2, 2025 and applied to violations assessed on or after that date, are:
| Violation type | Current penalty range (per violation) |
|---|---|
| Substantive / paperwork violation (includes a late or missing reverification) | $288 – $2,861 per Form I-9 |
| Knowingly hiring or continuing to employ an unauthorized worker (first offense) | $716 – $5,724 |
| Knowingly hiring or continuing to employ (second offense) | $5,724 – $14,308 |
| Knowingly hiring or continuing to employ (third or subsequent offense) | $8,586 – $28,619 |
| Document fraud (first offense) | $590 – $4,730 |
Because fines are assessed form by form, exposure compounds fast. An employer with 200 forms carrying substantive violations faces paperwork penalties of roughly $57,600 to $572,200 — and that is before any knowing-hire findings, which carry the far higher ranges above. The most serious risk in reverification is that a lapse converts into a "continuing to employ" finding: if an employee's authorization expired and you kept them on the payroll without reverifying, ICE can treat that as knowingly continuing to employ an unauthorized worker.
For a current employee, a deficient Form I-9 is a live, ongoing violation for as long as the employment relationship continues. Late reverifications do not receive the 10-day cure window that genuine technical errors get. The defensible position is a proactive self-audit that catches lapses before ICE does — see our three reverification facts HR teams get wrong for the correction protocol, including why you never backdate a Supplement B and never shred the original form.
E-Verify is not used for reverification. The system is for confirming initial employment eligibility at hire; you cannot run an existing employee through E-Verify again to reverify expiring authorization. Reverification is a Form I-9 process completed on Supplement B, independent of E-Verify. Note separately that failing to take required action on a Final Nonconfirmation in E-Verify is its own listed civil violation — but that is a distinct obligation from reverification.
The employers who never face a reverification penalty share one trait: they track expiration dates centrally and act on them before the deadline, not after. That means capturing the Section 1 authorization date for every employee with temporary work authorization, accounting for EAD automatic extensions, and generating reminders far enough ahead to examine documents and complete Supplement B on time.
i9 Intelligence automates exactly this. Our platform flags every upcoming reverification, distinguishes the workers who must be reverified from those who must not be, and creates a clean, audit-ready Supplement B trail. To pressure-test your current process, explore our I-9 audit services or, for distributed teams, our remote I-9 verification options.
Reverification must be completed on or before the date the employee's current employment authorization expires. There is no grace period after that date.
No. A lawful permanent resident's authorization to work does not end when the Form I-551 (Green Card) expires. Reverifying based on Green Card expiration is not required and may violate the anti-discrimination provision of the INA.
Yes. The employee selects any unexpired List A or List C document. You cannot specify which document they must provide or demand more documentation than required.
No. Reverification is recorded on Supplement B, which attaches to the original Form I-9. Completing a brand-new I-9 is a common error; if it happens, you correct it by attaching a proper Supplement B rather than discarding the original form.
Yes. When an eligible EAD qualifies for an automatic extension (up to 540 days for renewals timely filed before October 30, 2025), reverification is due at the end of the extension period, not the original card expiration date.
If you have a reverification deadline approaching, an employee whose status is changing, or a backlog you are not sure how to clean up, we can help.
Call us at (713) 668-6200, Monday through Friday, 8am–5pm CT. Email support@i-9intelligence.com or submit a ticket and a member of our compliance team will follow up.