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Federal law requires employers to retain every Form I-9 for the longer of three years from the hire date, or one year after the employment-ending date — whichever is later. Many employers discard forms too early and can't produce them during an ICE inspection. Many others keep every form indefinitely, which unnecessarily expands audit exposure. Both cost money.
This guide explains exactly how to calculate I-9 retention, what happens in edge cases (rehires, M&A, leave, electronic migration), and what an ICE audit looks for when retention is wrong. Use our free I-9 Retention Calculator to get the exact destruction date for any employee in seconds.
Employers must retain a completed Form I-9 for each employee hired to work in the United States. Retention requirements apply regardless of whether the employee is a U.S. citizen or noncitizen.
The retention rule is set by federal regulation 8 CFR 274a.2(b)(2)(i)(A) and enforced by U.S. Citizenship and Immigration Services (USCIS) and Immigration and Customs Enforcement (ICE) during inspections.
The I-9 retention rule is often summarized as:
Keep Form I-9 for three years after the date of hire, or one year after the date employment ends—whichever is later.
This is not an either/or choice. Employers must calculate both timeframes and retain the form until the later date. This is sometimes called the "later of" rule, and it comes directly from the USCIS M-274 Handbook for Employers, Section 10.
"The retention mistakes I see split evenly between employers who keep every form forever and employers who purge too early," says Patricia, Director of Compliance at i9 Intelligence. "The 'later of' rule is deceptively simple — but most HCMs don't calculate it correctly, and most companies don't realize it until ICE asks for a specific employee's I-9 and there's a three-day window to produce it. Over-retention hurts in a different way: every form you've kept is subject to inspection, which expands your audit exposure."
You can use our I-9 Retention Calculator to instantly determine the correct retention date for any employee. Or follow the manual steps below.
For employees who are still employed:
Example:
For terminated employees, employers must calculate two dates:
1. Three years from the hire date
2. One year from the termination date
The later of the two determines how long the I-9 must be kept.
Example:
Retention requirement: keep the I-9 until January 1, 2025.
Try the calculator → Enter any hire and termination date to get the exact destruction date instantly.
Employers may destroy an I-9 only after the retention period has fully passed. Destroying forms too early can result in penalties if the employer is later audited and cannot produce required records.
Best practice is to:
If an employee is rehired within three years of the original I-9:
If the original I-9 is no longer retained, a new form must be completed.
Even employees who work for only a few days require Form I-9 completion and retention. Short tenure does not shorten the retention period.
In mergers or acquisitions, the acquiring employer may inherit I-9 records and associated retention obligations. Retention calculations should be reviewed during due diligence — the clock doesn't reset on acquired employees, and inherited errors stay errors. If the acquired entity's I-9s are in a legacy HCM being sunset, chain-of-custody matters: the acquiring employer must be able to produce the form during an audit regardless of which system it lived in at the time.
An employee on leave is still employed. The retention clock hasn't started on their "one year after employment-ending date" window because their employment hasn't ended. Don't treat a leave of absence as a termination for retention purposes — it's not.
If a 1099 contractor later converts to a W-2 employee, a new I-9 is required (contractors don't complete I-9s). The new I-9's retention clock starts at the new hire date. If the person was previously employed as an employee, terminated, and then rehired as a contractor before returning as an employee, the I-9 retention calculation references only the employee periods.
If you migrate I-9s from one electronic system to another during the retention period, the new system must preserve audit trails (who accessed the form, when, and what was changed) per 8 CFR § 274a.2(e). A system change doesn't reset the retention clock. Keep the original audit trail or documented export logs in case ICE questions the chain of custody during an inspection.
Employers may retain I-9s in paper or electronic format, as long as:
Retention rules apply equally to both formats.
ICE audits of retention compliance come in two failure modes — under-retention (you destroyed a form too early and can't produce it) and over-retention (you kept forms past the required period and every one is now inspectable). Both cost money. The first tends to cost more.
Once an employer receives a Notice of Inspection, they have three business days to produce the requested I-9s. If an I-9 is requested and you destroyed it prematurely because the HCM auto-purged it on termination or the retention date was calculated wrong, you have a substantive violation — failure to present an I-9 upon request. The fine schedule above applies per missing form.
Example: a 200-employee company with 40 former employees over the last three years. During an audit, ICE requests I-9s for 10 former employees. Your HCM auto-deleted personnel files six months after termination, which purged those I-9s before the "later of three years from hire or one year after termination" window closed. You can't produce 7 of the 10 requested forms. At the 2025 fine schedule of $288-$2,861 per missing form, that single retention-system failure is $2,016-$20,027 in fines — plus the broader pattern-of-noncompliance finding that expands scrutiny to every remaining I-9.
When employers keep every I-9 forever — including forms for employees terminated five, ten, or fifteen years ago — every one of those forms is subject to inspection during a Notice of Inspection. Errors that otherwise would have been purged under the retention rule are now fair game for the auditor. A routine audit of a company with 15 years of retained I-9s can easily produce a 10-year-old form with a then-current error that's now a paperwork violation under the newer fine schedule.
Note: The "three business days" production window is counted from the date you receive the Notice of Inspection, not from the date ICE sends it. Weekends and federal holidays don't count. Plan your retention system on the assumption that you'll have 72 business hours to produce the requested forms — if they're not immediately accessible, you're already behind.
Our team runs pre-audit retention reviews for clients ahead of anticipated Notices of Inspection.
Most HCM platforms (Workday, UKG, ADP, BambooHR, Paylocity) treat I-9s as part of the general personnel file and apply a single retention policy to everything. That's the wrong default for three reasons:
If your HCM controls your I-9 retention, verify the settings manually for a sample of long-tenured employees and recent terminations. Don't assume the default is correct for I-9s specifically.
Failure to retain I-9s properly can result in:
Keeping forms longer than required can also increase exposure by expanding the universe of records subject to inspection.
Related: I-9 Penalties in 2026.
Employers can reduce risk by:
Strong retention practices demonstrate good-faith compliance during inspections.
Knowing how long to keep I-9 forms is only part of the compliance equation. Employers also need a reliable way to track retention deadlines, apply destruction rules consistently, and produce records quickly during an inspection. Missed discard dates, incomplete records, or over-retention can all increase audit exposure. If your organization is managing I-9s across multiple locations, employee types, or storage formats, a standardized approach matters.
i9 Intelligence helps employers centralize I-9 record retention, automate retention calculations, and support I-9 self-audits with audit-ready documentation. Schedule a compliance call to see how a structured retention workflow can reduce risk before an ICE audit or internal review.
Our team of I-9 and E-Verify experts is here to help: