Yes. When E-Verify returns a tentative nonconfirmation (TNC), the employee decides whether to contest it, but the entire action window is 10 federal government working days from the date E-Verify issues the mismatch result. If the employee chooses to act, the employer must open a case and transmit the referral to the Social Security Administration or Department of Homeland Security within that same 10-day window. The employee's choice is voluntary, yet the calendar is fixed and does not pause for weekends, most holidays, or employer absence. Miss it, and the case can convert to a final nonconfirmation, which can end the employment offer.
Mechanism: what a mismatch actually is
E-Verify is an internet-based system that compares information from Form I-9, Employment Eligibility Verification, against records held by the Social Security Administration (SSA) and the Department of Homeland Security (DHS). A mismatch does not mean the employee is unauthorized to work. It means the data entered do not match what the agencies hold, and E-Verify cannot yet confirm the record. The system issues a tentative nonconfirmation, abbreviated TNC, and the word tentative is load-bearing.
The 10-day clock is a federal government working-day count, not a private-sector calendar. Government working days exclude Saturdays, Sundays, and federal holidays. Critically, they do not automatically exclude days when the employer's office is closed, the HR contact is on vacation, or the employee is traveling. The clock runs from the date E-Verify issues the mismatch result, not from the date anyone at the company reads the notice. This distinction matters because a delayed internal notification can consume the entire window before the employee even learns a TNC exists.
Mechanically, the employer's obligations split into two duties that people often conflate. The first is notification: the employer must tell the employee about the TNC and provide the notice E-Verify generates, including the employee's rights and the deadline. The second is referral: if the employee chooses to contest, the employer must transmit the case to the relevant agency, SSA for most citizenship and identity data mismatches, DHS for immigration-record mismatches. Both duties sit inside the 10-day window. The employee's decision to act is what triggers the referral, and the employer cannot refer a contested case the employee has declined to pursue.
The employee's choice has three real branches. One, contest the mismatch and pursue resolution through the agency process. Two, decline to contest, in which case the case proceeds toward a final nonconfirmation and the employer may terminate or choose not to continue the employment. Three, resign or withdraw from the process. The regulation frames the choice as the employee's, but the consequences attach to whichever branch is taken, and employers cannot lawfully steer the employee away from contesting.
Quantified context: how the 10 days actually run
The window is 10 federal government working days, which is two full five-day workweeks plus intervening weekends. Because weekends are excluded, a TNC issued on a Monday gives the employee roughly 14 calendar days of runway before the tenth working day. A TNC issued on a Friday can compress to as few as 13 or 14 calendar days depending on holiday placement. A window that straddles a federal holiday, such as a Monday holiday, pushes the calendar-day total to about 15 or 16 days while the working-day count remains 10.
The practical compression comes from notification latency. Suppose E-Verify issues the mismatch result on a Thursday, and the HR contact does not forward the notice until the following Tuesday. Five of the 10 federal working days are gone before the employee can make any decision. If the employee needs to visit an SSA field office to correct a record, and the earliest appointment is 11 calendar days out, the referral must still be transmitted within the original 10-working-day window, and the employer cannot extend it by agreement with the employee. The agency resolution itself can take weeks or months; the 10-day window governs only the employee's decision and the employer's referral, not the final outcome.
The distinction between the referral deadline and the resolution timeline is the single most misunderstood quantity in the process. Employees frequently believe they have 10 days to fix their record. They do not. They have 10 federal working days to decide, and if they decide to act, to have the employer transmit the contest. The actual correction of an SSA or DHS record can take far longer, and the case simply remains open while that happens.
| Deadline or milestone | What it measures | Typical duration |
|---|---|---|
| TNC issuance | Date E-Verify returns the mismatch | Day 0 |
| Employee notification | Employer must inform employee of TNC | Promptly, practically within days |
| Employee decision and employer referral | Contested case transmitted to SSA or DHS | Within 10 federal working days |
| SSA or DHS review | Agency resolves the record | Weeks to several months |
| Final nonconfirmation | Case closes against the employee | After review concludes |
| Employer action on FNC | Termination or continued employment decision | Per employer policy and law |
The table makes the asymmetry visible: a 10-working-day decision window sits in front of a multi-month resolution process. The tight clock governs the cheap step, and the expensive step has no fixed federal deadline.
Edge cases: where the 10-day rule bends or breaks
The first edge case is the employee who never receives the notice through no fault of their own. Federal guidance treats the employer's notification duty as real, not ceremonial. If the employer sits on the TNC, the employee cannot make an informed choice, and the employer's delay does not fairly shorten the employee's window. Documented, prompt notification protects both parties. An employer who fails to notify and then penalizes the employee for missing the deadline is exposed to a discrimination claim.
The second edge case is the employee who chooses not to contest. This is a lawful choice, but it converts the case toward a final nonconfirmation. Employers sometimes present the choice as a formality and discourage contest. That practice is risky. The employee's decision must be voluntary, and the employer may not pre-select the outcome through pressure or misinformation.
The third edge case is the employee who contests but whose agency appointment falls outside the window. The referral still must be transmitted on time. The agency process then continues at its own pace. Employees who assume the referral can wait until the appointment are wrong, and the case can close before the correction happens.
The fourth edge case is a name or date-of-birth discrepancy caused by a clerical error in the employer's own I-9 data entry. In that scenario the mismatch is not really the employee's problem, and a corrected case can resolve quickly. Employers who treat every TNC as a suspected fraud signal are misreading the mechanism. Most TNCs trace to data mismatches, not to lack of work authorization.
Red flag: employer delays forwarding the TNC notice until day 8 or later of the window. Red flag: employer tells the employee "don't bother contesting" without explaining the right to contest. Red flag: employer asks the employee to resign immediately upon a TNC before the 10-day window closes. Red flag: employer re-verifies or demands new documents beyond the standard process in response to a TNC. Red flag: case is closed as a final nonconfirmation while a timely referral was pending.
Misconceptions: what the 10 days do not mean
The most common misconception is that the employee must fix the underlying record within 10 days. That is false. The 10 federal working days cover the decision and the referral, not the agency resolution. A second misconception is that the window is 10 calendar days. It is not, and the difference can add three to six calendar days depending on where the weekends and federal holidays fall.
A third misconception is that the employer can extend the window by mutual agreement. The deadline is set by federal rule, and an employer cannot lawfully grant an extension. A fourth misconception is that a TNC is a finding of unauthorized status. It is a tentative result, and the contest process exists precisely because tentative results are often wrong.
The counterintuitive professional caveat: the 10-day window is simultaneously the employee's decision period and the employer's referral deadline, so the two parties share one clock with different duties. An employer who waits for the employee to "get back to them" can blow the employer's own referral obligation even while the employee is still deciding. Good practice is to notify immediately, document the notification date, and build in a buffer so the referral transmits well before day 10.
Practical actions: steps and thresholds
Employees should act on the day they receive the TNC notice. Confirm the exact issuance date printed on the E-Verify notice, because that date, not the date of receipt, starts the clock. Calendar the tenth federal working day and work backward at least three working days to set an internal submit-by date.
Step 1: note the TNC issuance date and count 10 federal working days forward, excluding weekends and federal holidays. Step 2: decide whether to contest and tell the employer in writing on the same day if possible. Step 3: if contesting, ask the employer to confirm the referral transmission date in writing. Step 4: contact SSA or DHS as directed by the notice and keep every appointment record. Step 5: provide corrected documentation only if the notice specifically requires it, and keep copies. Step 6: if the employer misses the referral deadline, seek advice promptly rather than assume the case is lost.
A practical threshold for employers: transmit any contested referral no later than federal working day 7, leaving a three-day buffer for system issues, staff absence, or documentation gaps. For employees: treat federal working day 5 as the last safe date to notify the employer of a contest decision. These buffers are self-imposed, not regulatory, but they absorb the most common causes of missed deadlines.
Limitations: what the rule cannot do
The 10-day rule does not guarantee a correct outcome, only a timely process. It does not compel an employer to continue employment during a pending contest, though termination during a pending timely contest is legally risky. It does not convert a final nonconfirmation into a finding of immigration status violation, and it does not authorize either party to skip the agency process. The rule also cannot fix the underlying data error; only SSA or DHS can do that. Where the record itself is wrong, the timeline is the least of the employee's problems, and the resolution depends on agency processing capacity that varies by location and workload.
This article is general educational information about a federal employment-verification process, not a legal opinion and not advice on any specific case. E-Verify rules, deadlines, and agency procedures interact with anti-discrimination law and state requirements, and outcomes depend on facts this article cannot assess. Consult a qualified immigration or employment attorney in your jurisdiction before making decisions about a specific mismatch or termination.