K-1 Visa Application Process: Petition, Consular Phase, and Interview

The K-1 visa application process has four stages: a U.S. citizen files Form I-129F with U.S. Citizenship and Immigration Services (USCIS), the approved petition moves through the National Visa Center to a U.S. embassy or consulate abroad, the foreign fiancé attends a visa interview and medical exam, and the fiancé enters the United States with 90 days to marry the petitioner. Start to finish typically takes many months, and each stage has its own paperwork, fees, and failure points.

Who Can File

Only a U.S. citizen can petition. Green card holders cannot sponsor a fiancé under this category.¹ Both people must be legally free to marry, with any prior marriages ended by divorce, annulment, or death.

Federal law also requires that you have met your fiancé in person at least once during the two years before filing. The Secretary of Homeland Security can waive the meeting requirement, but waivers are rare and require showing either that a meeting would violate strict, long-established customs of the fiancé’s culture or that meeting would cause extreme hardship to the U.S. citizen.² Both of you must intend to marry within 90 days of the fiancé’s arrival.

Step 1: File Form I-129F with USCIS

The U.S. citizen starts the case by filing Form I-129F, Petition for Alien Fiancé(e). Download the current edition directly from USCIS; outdated versions get rejected.³ The form collects biographical details for both people, including full legal names, dates of birth, and a five-year employment history. Providing the petitioner’s Social Security number is technically voluntary, but leaving it blank can cause delays or a denial.⁴

What to Include

Proof of U.S. citizenship: a copy of a U.S. birth certificate, valid U.S. passport, naturalization certificate, or Consular Report of Birth Abroad.
Proof you met in person within the last two years: flight records, boarding passes, hotel receipts, and dated photos.
Signed statements from both of you confirming a genuine intent to marry within 90 days of the fiancé’s admission.
Divorce decrees, annulment records, or death certificates for any prior spouses.

Any document in a foreign language needs a certified English translation. The translator must certify in writing that the translation is complete and accurate and that they are competent to translate the language, and include their name, signature, address, and date.

Fees and Payment

Mail the package to the USCIS Lockbox for your area with the filing fee. Check the current amount on the USCIS fee schedule at uscis.gov, since fees change. As of late 2025, USCIS no longer accepts personal checks, business checks, money orders, or cashier’s checks with paper filings. Payment must be by credit or debit card using Form G-1450, or by ACH bank transfer using Form G-1650.⁵

What to Expect After Filing

USCIS issues Form I-797C, a receipt notice with a case number for online status tracking.⁶ The receipt confirms USCIS has your petition; it does not mean anything has been approved. Processing currently averages several months and fluctuates. If something is missing, USCIS sends a Request for Evidence (RFE) listing what it needs and a deadline to respond. When the agency is satisfied the relationship qualifies, it issues an approval notice and the case moves overseas.

Step 2: The Consular Phase

The approved petition transfers from USCIS to the National Visa Center (NVC) and then to the U.S. embassy or consulate that will interview the fiancé. That handoff takes a few weeks. The embassy contacts the fiancé directly with instructions.

DS-160 Application

The fiancé completes Form DS-160, the online nonimmigrant visa application, through the Department of State’s Consular Electronic Application Center.⁷ It covers personal background, travel history, and prior visa applications, and it is separate from the I-129F.

Medical Exam

The fiancé sees a physician authorized by the U.S. embassy in their country. The exam screens for certain communicable diseases and confirms required vaccinations. Results are usually sealed in a packet the fiancé brings to the interview.

Police Certificates

Applicants 16 and older need police clearance certificates. As a general rule, you need one from the fiancé’s country of nationality and current residence if they have lived there more than six months, and from any other country where they lived 12 months or more after turning 16. An arrest in any country triggers a certificate for that location regardless of how long the fiancé lived there.⁸ Some countries are slow to issue them, so request early.

Financial Support (Form I-134)

The petitioner files Form I-134, Declaration of Financial Support, showing enough income to support the fiancé during the temporary stay.⁹ The threshold is 100 percent of the Federal Poverty Guidelines. For 2026, that is at least $21,640 per year for a household of two in the 48 contiguous states, with higher thresholds in Alaska ($27,050) and Hawaii ($24,890).¹⁰ Recent tax returns, pay stubs, and bank statements support the declaration.

Step 3: The Visa Interview

The fiancé pays a $265 visa application fee before the interview.¹¹ At the appointment, a consular officer reviews the documents and asks about how the two of you met, your relationship history, and your plans after marriage. The officer is looking for a genuine relationship rather than one arranged primarily for immigration.

If approved, the K-1 visa is placed in the fiancé’s passport. It is valid for six months from the date of issuance and allows a single entry.¹² The clock runs from issuance, not the interview date. The fiancé may also receive a sealed packet to hand to Customs and Border Protection on arrival; keep it unopened.

Step 4: Entry and the 90-Day Marriage Window

At the port of entry, a Customs and Border Protection officer inspects the K-1 visa and sealed medical packet and admits the fiancé for 90 days. You must legally marry within those 90 days. The deadline cannot be extended, and there is no process to request more time.¹

Plan for local marriage rules. License fees, waiting periods, and expiration dates vary by state and county. Some states impose mandatory waiting periods of up to 72 hours between the license and the ceremony, and licenses expire after a set number of days. If you are marrying close to the 90-day deadline, confirm your local rules well in advance.

If You Don’t Marry Within 90 Days

Missing the 90-day window carries serious consequences. Status terminates immediately, and the fiancé is expected to leave. Staying past the deadline accrues unlawful presence, which can trigger bars on returning to the United States.

Federal law also restricts K-1 holders from adjusting to permanent resident status on any basis other than marriage to the specific U.S. citizen who filed the original petition.¹³ If the relationship ends after arrival, the fiancé generally cannot adjust status by marrying someone else or through an employer while in the United States. The realistic option is to depart and start over from abroad, which may be complicated by any unlawful presence already accrued.

After the Wedding: Green Card and Work Authorization

Once married, the foreign spouse files Form I-485, Application to Register Permanent Residence or Adjust Status, for a green card. The applicant must be physically present in the U.S. when filing and must have married the same U.S. citizen who filed the I-129F.¹⁴ Because the spouse of a U.S. citizen is classified as an immediate relative, there is no waiting list for a visa number. Couples married less than two years when the green card is approved typically receive conditional residence valid for two years; a joint Form I-751 filed in the 90 days before that card expires converts it to a ten-year green card.¹⁵

K-1 holders are not automatically authorized to work on entry. To work during the 90-day window, the fiancé files Form I-765 under eligibility category (a)(6). That Employment Authorization Document covers only the 90-day K-1 period and cannot be renewed.¹⁶ EAD processing often exceeds 90 days, so many K-1 holders find they cannot realistically work until after marrying and filing for adjustment, when a new I-765 goes in with the I-485.

Bringing Children on K-2 Visas

Unmarried children of the fiancé who are under 21 can apply for K-2 visas to accompany or follow the K-1 parent. Each child needs a separate DS-160 and pays the visa fee individually.³ A child who does not travel with the parent must apply within one year of the date the parent’s K-1 was issued. After the marriage and the parent’s I-485 filing, K-2 children file their own I-485 applications. If a child is approaching 21 and at risk of aging out, contact the embassy early.¹⁴

1
U.S. Citizenship and Immigration Services. Visas for Fiancé(e)s of U.S. Citizens
2
Office of the Law Revision Counsel. 8 USC 1184 – Admission of Nonimmigrants
3
U.S. Citizenship and Immigration Services. I-129F, Petition for Alien Fiancé(e)
4
U.S. Citizenship and Immigration Services. Instructions for Petition for Alien Fiancé(e)
5
U.S. Citizenship and Immigration Services. USCIS to Modernize Fee Payments with Electronic Funds
6
U.S. Citizenship and Immigration Services. Form I-797C, Notice of Action
7
U.S. Department of State. Online Nonimmigrant Visa Application
8
U.S. Department of State. Civil Documents – Immigrant Visa Process
9
U.S. Citizenship and Immigration Services. I-134, Declaration of Financial Support
10
U.S. Department of Health and Human Services. 2026 Poverty Guidelines
11
U.S. Department of State. Fees for Visa Services
12
U.S. Citizenship and Immigration Services. Summary of Process for the K-1 Fiancé/Fiancée Program
13
Office of the Law Revision Counsel. 8 USC 1255 – Adjustment of Status of Nonimmigrant to That of Person Admitted for Permanent Residence
14
U.S. Citizenship and Immigration Services. Green Card for Fiancé(e) of U.S. Citizen
15
U.S. Citizenship and Immigration Services. I-751, Petition to Remove Conditions on Residence
16
U.S. Citizenship and Immigration Services. Form I-765 Instructions for Application for Employment Authorization