What Is Form I-539 and Who Needs to File It?

Form I-539 is the U.S. Citizenship and Immigration Services application that nonimmigrants already inside the United States use to ask for more time in their current status or to switch to a different nonimmigrant category. There is no separate form called “I-539N” in the USCIS system; the correct form is Form I-539, sometimes filed together with a supplemental Form I-539A for family members included on the same application.

Who Files Form I-539

The form covers several groups of nonimmigrants. The most common filers are B-1/B-2 visitors who need more time in the country and people who want to move from one nonimmigrant category to another. USCIS also uses Form I-539 for Commonwealth of the Northern Mariana Islands residents applying for an initial grant of status, F and M students seeking reinstatement, and applicants for V nonimmigrant status.¹

If you want to extend or change to an employment-based classification such as H-1B or L-1, Form I-539 is the wrong form. Those requests are filed by the employer or petitioner on Form I-129.¹

Who Qualifies

To be eligible for an extension or change of status through Form I-539, you must meet all of the following:

You were lawfully admitted to the United States as a nonimmigrant.
You have not worked without authorization, overstayed, or otherwise violated your current status.
You are filing before your authorized stay ends, as shown on your Form I-94.
Your passport remains valid for the full period of stay you are asking for.

USCIS recommends filing at least 45 days before your current stay expires, or as soon as you know you need the extension or change.¹

Filing After Your Stay Has Expired

USCIS may still accept a late application, but only if you show that the delay was caused by extraordinary circumstances beyond your control, the length of the delay was reasonable, you have not violated your status, you remain a bona fide nonimmigrant, and you are not in removal proceedings. All five conditions must be met, and the standard is difficult to satisfy.¹

Adding Family Members

Your spouse and unmarried children under 21 do not each need their own I-539. If they hold the same nonimmigrant status as you (or a derivative status), you can include them as co-applicants on your single Form I-539. Each co-applicant completes a supplemental Form I-539A, which is submitted with the main application.²

Bridge Applications

One situation catches many applicants off guard. Even if you have already been approved for a future nonimmigrant status, say an F-1 that begins in the fall, you may still need to file Form I-539 to cover the gap between when your current status ends and when the new one begins. USCIS calls this a “bridge” application. Skipping it can leave you without authorized status during the intervening period.¹

Fees

The standard filing fee changes as USCIS updates its schedule. Check the USCIS Fee Schedule or the fee calculator at uscis.gov/feecalculator before you submit, because an application with the wrong fee will be rejected.

The $85 biometric services fee that USCIS previously charged with the I-539 has been exempted. Most applicants will not be scheduled for a biometrics appointment, though USCIS can still require one and will notify you if it does.³

Premium Processing

Premium processing through Form I-907 is available for a limited set of I-539 filers: applicants changing status to F-1 or F-2, M-1 or M-2, or J-1 or J-2.⁴ As of March 1, 2026, the premium processing fee for these categories is $2,075.⁵ B-1/B-2 visitors and other categories not on the list cannot use premium processing.

What You Need to Submit

The exact evidence depends on your visa category, but most applicants should expect to include:

A copy of Form I-94 (front and back) for each person on the application.²
A passport valid for the full period of stay you are requesting.¹
A letter explaining why you need the extension or change of status.
Financial evidence. B-1/B-2 applicants, for example, must show how they will support themselves during the extended stay through bank statements, affidavits of support, or similar documentation.²
Category-specific documents, such as medical records for a B-2 stay extended for treatment, or school enrollment letters for students.

The I-539 instructions list required evidence for each visa category. Read the section that applies to your classification carefully; missing a single required item is a common reason applications get denied.

How to File

You can file Form I-539 online through your USCIS account at my.uscis.gov, or by mailing a paper application. Online filing enters the queue faster than mail, ensures you are using the current version of the form, and lets you communicate with USCIS through your account. You will receive a receipt notification in your account almost immediately after submitting, and you can use the account to check status, respond to evidence requests, and update contact information.⁶

As of early 2026, the median processing time for Form I-539 is approximately 3.2 months.⁷ The actual wait varies by workload and request type. Check the USCIS processing times page before making travel or work plans that depend on approval.

What a Pending Application Does and Does Not Do

A pending I-539 does not give you work authorization. If your current visa does not permit employment, filing an extension or change-of-status request does not change that. Working while the application is pending is a status violation that can lead to denial and long-term immigration consequences.¹ Even if you are changing to a status that will eventually allow work, you cannot start until USCIS approves the change and any additional work authorization requirements are met.

If you filed before your authorized stay expired, you are generally considered to be in a “period of authorized stay” while the application is pending, even after your I-94 date passes. That protects you from accruing unlawful presence for the inadmissibility bars.⁸

Authorized stay is not the same as lawful status. A pending I-539 does not confer lawful nonimmigrant status, and it does not automatically protect you from removal if your original status has expired.⁸ International travel while an I-539 is pending is risky; re-entry on a pending application is not guaranteed, and leaving the country can be treated as abandonment of the request. Talk to an immigration attorney before you travel.

Why Applications Get Denied

Most denials come down to a handful of problems:

Filing after the I-94 date without meeting the extraordinary-circumstances standard.
Incomplete applications, including missing signatures, incorrect fees, or blank sections.
Weak supporting evidence, such as a vague explanation letter or insufficient proof of financial support.
Status violations, including unauthorized work or a prior overstay.¹
Inconsistencies between the I-539 and your I-94, passport, or earlier immigration filings.

The strongest applications anticipate what the adjudicator will ask and answer it in the initial filing. A B-2 extension for medical treatment should include a doctor’s letter with specific dates and a treatment plan. A change of status should explain why the new category is necessary and how you meet its requirements.

If Your Application Is Denied

A denial is not always the end. You can file Form I-290B, Notice of Appeal or Motion, to ask USCIS to reconsider. There are two options:

A motion to reopen, which asks USCIS to look at new facts or evidence that was not available when the original decision was made.
A motion to reconsider, which argues that USCIS applied the law or policy incorrectly to the evidence already in the record.

The deadline is 30 days from the date of the denial, or 33 days if the decision was mailed. There is no exception to this deadline for motions to reconsider. For motions to reopen, USCIS may excuse a late filing if you show the delay was reasonable and beyond your control. A filing fee applies, with fee waivers available in some categories for applicants who can show inability to pay.⁹

Filing a motion does not stop the clock on your authorized stay. If your I-539 was denied and your original status has already expired, you are likely accruing unlawful presence while the motion is pending.

What Overstaying Costs You

Once your authorized stay ends without a timely-filed extension pending, unlawful presence starts to accumulate. Leaving the U.S. after more than 180 days but less than one year of unlawful presence triggers a three-year bar on readmission. Leaving after one year or more triggers a ten-year bar.¹⁰ The bars are triggered by departure, which is why anyone in an overstay situation should get legal advice before making travel plans.

Federal law also voids your existing nonimmigrant visa automatically the moment you overstay. Even if the visa sticker in your passport shows a future expiration date, it is no longer valid for entry, and you would generally need a new visa from a consular post in your country of nationality to return.¹¹