Form I-129F: A Complete Guide for 2026

Form I-129F, Petition for Alien Fiancé(e), is a first step for U.S. citizens who want to bring a foreign partner to the United States on a K-1 fiancé(e) visa. The K-1 visa allows an individual to enter the U.S. and marry within 90 days of arrival. They can then begin the process to become a lawful permanent resident with a two-year conditional Green Card.

What is Form I-129F?

Form I-129F is a visa petition filed with U.S. Citizenship and Immigration Services (USCIS) by a U.S. citizen on behalf of a foreign fiancé(e) or spouse. Filing the form does not automatically grant a visa. Instead, it asks USCIS to determine whether a qualifying relationship exists, so that you can apply for a K-1 fiancé(e) visa.

The most common reason to file an I-129F is to bring a foreign fiancé(e) to enter the United States so you can marry and then apply for a K-1 visa.

Form I-129F is also used if a U.S. citizen and foreign national are already married; they may choose to file Form I-129F after filing Form I-130, Petition for Alien Relative. Once approved, this could allow the foreign spouse to get a K-3 nonimmigrant visa (and possibly K-4 visas for any children), so they can live in the U.S. while their I-130 is processed.

Who should file Form I-129F?

Form I-129F is available only to U.S. citizens filing on behalf of a fiancé(e) who lives abroad, and whom they have met within the past two years. A foreign fiancé(e) cannot file I-129F for themselves. Lawful permanent residents also are not eligible to use this form.

You must also be able to demonstrate the following when filing Form I-129F:

• The petitioner is a U.S. citizen.
• Both parties are legally free to marry.
• The relationship is genuine, and not simply an attempt to bring someone to the U.S.
• The couple intends to marry within 90 days of the fiancé(e)’s entry into the United States.
• The couple has met in person in the past two years (unless a waiver applies).

USCIS closely reviews the evidence submitted with I-129F forms, so having clear evidence is essential.

Waivers for meeting in person

If you haven’t met in person within the past two years and want to apply for a waiver, you must provide evidence that one of the situations below applies:

• Meeting in person would violate strict and long-established customs of your fiancé(e)’s culture or social practice.
• It would have been an extreme hardship on you, the petitioner, to have met your fiancé(e) in person within the past two years.

K-3 visa applicants

Form I-129F can also be used to file for a K-3 spouse visa (allowing any eligible children to receive a K-4 visa), but this option is uncommon today. A K-3 visa allows a spouse to enter the U.S. while their immigrant visa petition (Form I-130) is being processed. However, the processing times for Form I-129F and Form I-130 are often similar, and the Department of State says that it rarely issues K-3 visas.

How to file Form I-129F

Form I-129F is filed with USCIS by mail. Online filing is not available. You must also include several other documents, including proof of your relationship and legal eligibility to marry, letters of intent from both parties, and payment authorization.

Submitting an accurate and complete petition is critical. Errors and missing documents can cause processing delays.

Form I-129F checklist

A typical Form I-129F filing includes:

• Completed and signed Form I-129F
• Proof of U.S. citizenship (like a copy of your passport, birth certificate, or naturalization certificate)
• Payment information for the filing fee
• Passport-style photos of both parties, taken within 30 days of filing the petition
• Evidence of the relationship (such as photos, travel records, and communications)
• Written statements of intent to marry
• Certified translations for any foreign-language documents
• Evidence that you and your fiancé(e) have legally terminated any previous marriages
• Evidence of legal name changes (if applicable)
• Evidence that you and your fiancé(e) have met in person within the past two years (or proof that a waiver applies)

If you and your spouse are filing Form I-129F for a K-3 visa, you will also provide:

• Marriage certificate
• Form I-797C showing that you’ve filed Form I-130 (unless you’re filing I-130 and I-129F concurrently)

Form I-129F filing fee

USCIS charges a nonrefundable $675 filing fee for Form I-129F. That is separate from the fees you will need to pay after the I-129F is approved, such as the K-1 visa application fee, medical exam cost, and adjustment of status fees. Fees can change over time, so always verify the current fee using the USCIS fee schedule.

Processing time of Form I-129F

As of January 2026, USCIS reports that Form I-129F processing times are 10 months or less in most cases. However, wait times vary depending on USCIS workload, which office reviews your petition, and the details of your case. There is no guaranteed timeline. Incomplete forms or missing information can also lead to requests for evidence (RFEs) from USCIS. Evidence requests can significantly extend the process.

Common I-129F mistakes to avoid

Some of the most common issues that delay or derail Form I-129F petitions include:

• Using outdated versions of the form
• Missing signatures
• Paying incorrect filing fees
• Including weak or inconsistent proof of your relationship or bona fide intent to marry
• Submitting low-quality photos
• Having conflicting information across forms and documents

Careful preparation can reduce the risk of delays and improve the likelihood of approval. For more help, reach out to one of Manifest’s experienced K-1 visa lawyers today to request a consultation.

What happens after Form I-129F approval?

After USCIS approves Form I-129F, the applicant receives a Notice of Action (NOA2). The case is then forwarded to the National Visa Center (NVC) and ultimately to the U.S. embassy or consulate where the foreign fiancé(e) will apply for their K-1 or K-3 visa.

The final steps include a medical exam, a visa interview, and background checks. If approved, the fiancé(e) may travel to the United States and marry the petitioner within 90 days of entry. After marriage, the spouse can apply to adjust their status, so they can receive a two-year conditional Green Card.

Step-by-step guidance for your Form I-129F

Form I-129F is a foundational step for a U.S. citizen to marry a foreign national. USCIS looks closely at I-129F petitions, and it’s important to fill out the forms correctly the first time. Working with an experienced attorney is the best way to avoid common pitfalls. If you want to move forward with greater confidence and fewer delays, contact Manifest today.