K-4 Child of K-3 Visa — United States

You’ll need to submit complete forms, proof of relationship to the K-3 visa holder, and identity documents. Missing or inconsistent documents can slow down processing with USCIS or at the visa stage with the U.S. Department of State.

Forms and application data

File the required K-4 application forms with USCIS using the current edition. Outdated versions aren’t accepted.

The form asks for detailed biographical information about the child, such as:

• Full legal name
• Date and place of birth
• Current address
• Parent’s information
• Details about the K-3 visa holder
• U.S. citizen sponsor details

If the child applies for a visa abroad, complete the Form DS-160 Online Nonimmigrant Visa Application as required by the U.S. Department of State. The information must match what you gave USCIS.

Double-check all entries before submission. Inconsistent names, dates, or sponsor details can cause processing delays.

Relationship and sponsor evidence

Proof of the child’s relationship to the K-3 visa holder is required. USCIS wants clear evidence of the legal parent‑child relationship.

Submit documents showing:

• Child’s relationship to the K-3 visa holder
• K-3 visa holder’s current status
• Connection to the U.S. citizen sponsor

Documentation must match the information in your forms. All names, dates, and family relationships must be consistent.

Since the K-4 visa is part of family-based immigration, USCIS examines qualifying relationships closely. If there are discrepancies, provide clarification that’s consistent with what has already been filed.

Always check the USCIS form instructions for the current list of acceptable documents. Requirements can change.

Photos and identity documents

Submit passport-style photos that meet official specifications. Non-compliant photos will cause delays or rejections.

Prepare photos before filing so you can include them with your application. Follow the formatting rules in the USCIS form instructions.

Identity documents confirming the child’s details are also required, including:

• Full legal name
• Date of birth
• Nationality

All identity information must match what appears on the USCIS form and the DS-160, if applicable.

Careful document preparation helps avoid unnecessary delays.

A K-4 child visa allows temporary entry to the United States, but the goal is lawful permanent residence. The transition from nonimmigrant status to a green card is handled through the family-based immigration process with USCIS and the U.S. Department of State.

Is this an immigrant route?

The K-4 visa is not an immigrant visa. It’s a nonimmigrant classification that lets the child enter the United States while the parent’s family-based immigration case is pending.

Permanent resident status isn’t granted automatically. To become a lawful permanent resident, the child must qualify through a family-based immigration petition filed with USCIS.

The path depends on an approved immigrant petition and visa processing.

If processing through a U.S. embassy or consulate, submit Form DS-160 to the U.S. Department of State and attend an interview. If eligible to apply inside the United States, USCIS handles the permanent residence application.

Check eligibility requirements and filing instructions on the USCIS website.

Timing and next steps

The process can take about 12–18 months, depending on case volume and agency workload.

Track your case and respond quickly to any requests for evidence. Delays often result from missed notices or incomplete documents.

Steps to follow:

1. Make sure the family-based immigrant petition has been properly filed.

2. Monitor USCIS case status.

3. Complete required visa processing steps with the U.S. Department of State, including DS-160 if processing abroad.

4. Prepare for the immigrant visa interview or USCIS appointment.

Keep copies of every filing and notice.

If you turn 21 during the process, timing may affect eligibility. Review current age-related protections on the USCIS website to see how they apply.

You’ll need to pay a visa application fee and complete Form DS-160 before the interview. processing times depend on the visa category and which U.S. embassy or consulate you’re dealing with.

Visa and application fees

The Machine Readable Visa (MRV) fee is $265 for each K-4 applicant, as of February

1. The U.S. Department of State collects this fee for consular processing.

You need to submit the Form DS-160, Online Nonimmigrant Visa Application, before your interview. Each child applying for a K-4 visa files a separate DS-160.

Questions about extra fees tied to a family-based immigration petition go to USCIS. USCIS handles the underlying petition, while the Department of State manages interviews and visas.

Fees can change. Always check the current amount with the U.S. Department of State before paying.

Typical processing windows

Processing times vary by visa category and location. The Department of State publishes estimated ranges for DS-160 processing.

As of February 2026, reported DS-160 processing windows look like this:

K-4 falls under family-based immigration, so timing depends on the location. Local demand and staffing directly affect how soon you get an interview.

Processing times aren’t the same everywhere. Check the specific embassy or consulate for your case.

Where to check current times

For updated timelines, use government sources.

Check:

• The U.S. Department of State Visa Bulletin for family-based immigration movement.
• The U.S. Department of State visa processing time information page for consular wait times.
• The USCIS Processing Times page if your case involves a pending petition.

Rely on the agency handling your case for timing, not third-party estimates.

USCIS and the U.S. Department of State deny many K-4 visa cases for avoidable reasons. Most denials happen because of missing documents, unsigned forms, or trouble proving the parent qualifies under family-based immigration rules.

Evidence and documentation gaps

You need to submit complete forms and all supporting documents. Leaving out required evidence can lead to refusal or denial.

Common problems:

• No proof of the parent’s valid K-3 visa nonimmigrant visa status
• Forms missing required supporting records
• Incomplete information on the Form DS-160 Online Nonimmigrant Visa Application

If you can’t prove the parent holds K-3 status, the K-4 child visa isn’t possible. The child’s eligibility is tied directly to the parent’s approved K-3 classification.

Check this before filing:

Filing a K-4 application never guarantees approval. Eligibility must be documented clearly and fully.

Form and signature errors

Unsigned or incomplete forms often lead to rejection or denial. USCIS won’t process forms without required signatures.

Review:

• Every signature line on each form
• The accuracy of information on the DS-160
• Consistency between all documents

One missing signature can stop your case. If USCIS rejects a filing for this, it delays your timeline and may mean resubmitting everything.

Check each form against its official instructions before you send it in. Don’t assume a form is complete just because you filled out most of it.

Sponsor or eligibility problems

Eligibility problems come up when the parent doesn’t properly qualify for K-3 status. Since the K-4 visa is tied to the parent, any issue with the parent’s classification affects the child.

You need to confirm:

• The parent holds valid K-3 status
• The child qualifies under the K-4 category within family-based immigration

If USCIS finds the parent doesn’t meet K-3 requirements, the child’s K-4 application will fail. The K-4 category only works if the parent’s case is approved.

Before filing, verify the parent’s immigration status and review eligibility requirements through USCIS and, for visa processing, the U.S. Department of State.