The K-1 Visa, Explained

Information about wait times, costs, and requirements for a fiancé visa

What Is a K-1 visa?

A K-1 visa — also called a fiancé visa — allows the engaged partner of a U.S. citizen to enter the United States, as long as the couple gets married no more than 90 days later. The newly married spouse can then apply for permanent residence (a “green card”) based on marriage. Not sure if you qualify for a K-1 visa? Start by checking your eligibility.

The correct terminology is “fiancée” for a woman who is engaged to be married or fiancé for a man. For simplicity, we use “fiancé” to mean either a male or female engaged partner.

Is the K-1 visa right for me?

In some cases, it might make sense to skip the fiancé visa process altogether and go straight to getting married and applying for a spousal visa. This decision depends on where you are living, how long you wish to wait to be together, and various other circumstances. For more details, see our guide to differences between fiancé visas and marriage green cards. You can even take Boundless’ quick quiz to help determine which path is best for you.

In this guide you will learn about:

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K-1 Visa Timeline

The processing time for a K-1 visa application currently averages 7 months. This does not include the time from when the government approves your application to your interview date, which differs based on the country you’re applying from.

For more info, Boundless has put together a guide on wait times for each stage of the K-1 process,

Not sure if you qualify for a K-1 visa? Check your eligibility today.

K-1 Visa Cost

The total cost for a K-1 visa is roughly $1000.

Here is a breakdown of K-1 visa costs:

The government’s required fee for Form I-129F is $535. An applicant may pay with a money order, cashier’s check, or personal check. If you are filing at a USCIS lockbox facility, you can pay by credit card using Form G-1450 (“Authorization for Credit Card Transactions”). If paying by check, make the check payable to the U.S. Department of Homeland Security.

Once Form I-129F is approved, the engaged partner of the U.S. citizen is required to do a medical exam. The cost for the exam varies by provider, but $200 is typical.

Finally, the fee for the actual K-1 visa application is $265. This fee is usually paid at the interview—but it’s important to review specific instructions regarding time and place of payment, included in the embassy’s interview notice, which can vary by home country.

These fees do not reflect additional costs, such as translating and photocopying your documents and obtaining required documents such as your birth certificate.

K-1 Visa Eligibility

The K-1 visa allows a U.S. citizen to sponsor their fiancé to come to the United States. Both partners must have the intention to get married within 90 days after the sponsored fiancé arrives in the United States from abroad.

To check whether or not you’re eligible, Boundless created a downloadable K-1 visa eligibility checklist.

Specific requirements include:

  • The sponsoring partner must be a U.S. citizen. U.S. green card holders (permanent residents) are not eligible to sponsor a fiancé for a K1 visa.
  • Both partners must be eligible to marry—in other words, both must be currently unmarried. Any prior divorce decrees, annulments, or death certificates must be provided to show that any previous marriages have been terminated.
  • K-1 visas are available to same-sex partners, regardless of whether the laws in the sponsored fiancé’s home country allow for sex-same marriage.
  • The legitimacy of the relationship must be proved with evidence such as photographs, flight itineraries and/or hotel reservations of trips taken together as a couple, written statements from friends and colleagues who are aware of the engagement, letters or emails between the partners, etc.
  • The couple must be able to prove that they have met in person at least one time within the two years prior to filing the visa form (except for cases of extreme hardship, or where in-person meetings would violate cultural, religious, or social norms). Evidence may include flight itineraries, hotel itineraries, dated photos, etc.
  • Each partner must provide a signed statement indicating an intent to marry within 90 days of the sponsored fiancé’s arrival in the United States. If concrete wedding plans have been made, it’s also a good idea to submit evidence such as wedding invitations, receipts of deposits on a venue, etc.
  • The U.S. citizen fiancé must meet certain income requirements. Specifically, the adjusted gross income on their most recent tax return must be equal at least 100% of the Federal Poverty Guidelines. If they are unable to meet this requirement alone, a joint financial sponsor must file a supplemental “affidavit of support.” (Note that the income requirements for a marriage green card sponsorship are different—and higher.)

Not sure if you qualify for a K-1 visa? Check your eligibility today.

Step 1: Form I-129F

The first step for an eligible couple is for the U.S. citizen fiancé to file Form I-129F with USCIS. The primary purpose of this form is to prove the validity of the relationship.

The following supporting documents should be attached to the completed form as evidence:

  • Proof of citizenship for the U.S. citizen fiancé (copy of a passport, certificate of naturalization, or birth certificate)
  • Copy of the sponsored fiancé’s passport
  • Proof of the legitimacy of the relationship (photos, correspondence, sworn statements from friends and colleagues, etc.)
  • Proof of having met in person at least one time within the two years prior to filing the form (flight itineraries, hotel itineraries, photos, correspondence, etc.)
  • Sworn statements, written by and signed by each partner, with a brief description of the nature of the relationship and an intent to marry within 90 days of the sponsored fiancé’s arrival in the United States. It’s generally best to provide the original signed statements, and keep copies for your records.
  • A copy of any Form I-94 arrival-departure record previously issued to the sponsored fiancé.
  • One passport-style photo of the U.S. citizen fiancé and one passport-style photo of the sponsored fiancé.

After the form and supporting documents are filed at the appropriate address, USCIS will typically send a receipt notice within 30 days. USCIS may also send a Request for Evidence (RFE), if they need more information. Once the Form I-129F is approved, USCIS will send an approval notice.

Step 2: Form DS-160 and Interview

At this point, USCIS hands off the case to the U.S. Department of State. After the I-129F fiancé sponsorship form is approved, the sponsored fiancé will receive a notice from the U.S. embassy in their home country, including the date and location of their visa interview and a list of required documents.


Next, the sponsored fiancé must complete the State Department’s online DS-160 form (technically called the “Online Nonimmigrant Visa Application”). This is the actual K-1 visa application, and it’s very important to print the confirmation page once the form has been submitted online.

The State Department then requires the following documents:

Sponsored Fiancé Documents

  • Two passport-style photos
  • Birth certificate
  • Valid, unexpired passport
  • Police clearance obtained from all countries of residence of more than six months since the age of 16
  • Sealed medical exam form (obtained through physician abroad who is authorized by the State Department)

U.S. Citizen Fiancé Documents

  • Affidavit of support (Form I-134)
  • Most recent tax returns
  • Proof of relationship (copy of the approved I-129F package originally filed with USCIS)


The visa interview takes place at the nearest U.S. embassy or consulate in the sponsored fiancé’s home country, usually about 4–6 weeks after the embassy’s initial notice.

The interviewing officer will typically make a decision on the case either the same day of the interview or shortly afterward. If they need additional evidence, they will request that it be submitted directly to the U.S. consulate.

Boundless offers end-to-end K-1 application support, including helping you prepare for your visa interview! Get started today.

Step 3: Arrival and Marriage!

Once requirements are met and the K-1 visa is approved, the sponsored fiancé is given a total of six months from the date of approval of the initial I-129F form to travel to the United States.

Upon arrival, the couple must get married within 90 days, or the sponsored fiancé will lose their K-1 status. If the couple decides not to get married, the sponsored partner will not be eligible to remain in the United States and is required to leave the country right away.

Unlike other visas, the K-1 does not allow for a change to another temporary visa (F-1, H-1B, etc.). It’s also forbidden to “adjust status” from a K-1 visa to a green card based on marriage to anyone other than the original U.S. citizen sponsor. The sole purpose of the K-1 visa is for the sponsored fiancé to enter the United States to join the sponsoring fiancé and get married within 90 days.

Of course, after getting married, the final step is to apply for a marriage-based green card, which will be sponsored by the same partner who originally sponsored the K-1 fiancé visa. Check out our overview of the marriage green card process, plus our start-to-finish guide for spouses of U.S. citizens living in the United States.

Boundless is your K-1 partner from start to finish. We stay with you right up until the finish line, when your visa gets approved. Get started today!

K-1 FAQs

Can I work with a K-1 visa?

Yes, but you will need to apply for work authorization by filing Form I-765 (Application for Employment Authorization) before you can work. Like the K-1 visa, this employment authorization is only valid for 90 days, starting from the day you arrived in the U.S..

If you choose to apply for permanent residency after you arrive, and file Form I-485 (Application to Register Permanent Residence or Adjust Status), you can include Form I-765 with your application. This would grant you work authorization for one year.

Can I extend my K-1 visa?

The K-1 visa automatically expires after 90 days.

If my partner is a green card holder, not a U.S. citizen, can I still apply for the K-1 visa?

The K-1 visa is only open to the fiancés of U.S. citizens. If your partner is a green card holder, they will only be able to petition for your entry if you are already married.

How do I apply for a green card after I have entered the U.S. with a K-1 visa?

If you have entered the U.S. on a K-1 visa and now married your partner, congratulations on starting your new life together.

To start applying for your green card, you will need to file Form I-485 (Application to Register Permanent Residence or Adjust Status). Boundless has prepared a guide to adjusting your status, so you can understand the next steps in this process.

Do I need an affidavit of support for the K-1 visa?

Yes, you will need to submit Form I-134 when applying for a K-1 visa.

What is the difference between the K-1 visa and the K-3 visa?

If you are the fiancé of a U.S. citizen, you can apply for a K-1 visa. If you are the spouse of a U.S. citizen, you can apply for the K-3 visa. Both visas are available only to partners of U.S. citizens, not green cardholders.

My K-1 visa has been affected by COVID-19 restrictions, is there anything I can do?

According to USCIS, consular posts have been authorized to prioritize K visas. You should check the website of your nearest U.S. Embassy or Consulate for the latest information.

If your U.S. citizen partner has filed Form I-129F (Petition for Alien Fiancé(e)) for you and this petition is set to expire, you may be able to extend the form and avoid having to file a new petition.