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“Case Accepted By The USCIS Lockbox”on your I-129F · K-1 fiancé(e) visa petition

The lockbox accepted your mailed I-129F and cashed the payment.
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WHICH STEP ARE YOU ON?
Receipt notice · here
Review by an officer
Request for evidence (if needed)
Decision
Case sent to the National Visa Center or consulate (if abroad)

What to do, in 3 steps

Wait for the receipt notice by mail.
Check that the payment cleared your bank.
Keep your mailing receipt and a copy of your filing.
17months
13 to 17 monthsTypical time for a complete I-129F. USCIS published times. Typical ranges, never an exact date.
In this statusThis usually lasts days to a few weeks until the case is fully received.

What it means for your I-129F

The lockbox accepted your mailed I-129F and cashed the payment. A receipt notice should follow. Check your bank statement to confirm the charge, and keep your mailing proof together with a full copy of the petition you sent.

In general, on any form:

The USCIS Lockbox, the facility that receives mailed filings and payments, accepted your package. Your fee was processed and the case is being entered into the system. A receipt notice usually follows. This is the very first intake step.

Avoid these mistakes

Sending a second package because the receipt has not arrived yet.
Canceling the payment.

Quick questions

What does "Case Accepted By The USCIS Lockbox" mean on an I-129F?

The lockbox accepted your mailed I-129F and cashed the payment. A receipt notice should follow. Check your bank statement to confirm the charge, and keep your mailing proof together with a full copy of the petition you sent.

What is the USCIS Lockbox?

It is the facility that opens mailed filings, takes payments and sends cases into the system.

Does acceptance mean approval?

No. It only means your package passed the first intake check.

When will I get a receipt notice?

Usually within a few weeks after the Lockbox accepts the case.

How long does an I-129F take?

The typical range published by USCIS is 13 to 17 months. It depends on the office and your case; it is not an exact date.

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Other statuses of your I-129F

Case Was ReceivedIntakeCase Was Received and A Receipt Notice Was SentIntakeCase Rejected Because I Sent An Incorrect FeeIntakeCase Was Received and A Receipt Notice Was EmailedIntakeFees Were WaivedIntakeCase Was Rejected Because It Was Improperly FiledIntakeFingerprint Fee Was ReceivedBiometricsFingerprint Review Was CompletedBiometricsBiometrics Appointment Was ScheduledBiometrics

Every status of an I-129F →

This same status on other forms

I-485Green card from inside the U.S.Application to Register Permanent Residence or Adjust StatusI-130Petition for a family memberPetition for Alien RelativeI-765Work permit (EAD)Application for Employment AuthorizationN-400Become a U.S. citizenApplication for NaturalizationI-131Travel permit or reentry permitApplication for Travel Documents, Parole Documents, and Arrival/Departure RecordsI-751Remove conditions on 2-year green cardPetition to Remove Conditions on ResidenceI-90Renew or replace green cardApplication to Replace Permanent Resident CardI-140Employment-based green card petitionImmigrant Petition for Alien WorkersI-821DDACA request or renewalConsideration of Deferred Action for Childhood Arrivals

AI-assisted explanation based on the official USCIS status, reviewed by CaseAlerta. Not legal advice. Times are typical ranges, never an exact date.