The K-1 visa process moves a foreign fiancé(e) of a U.S. citizen from a petition filed in the United States, through a visa interview at a consulate abroad, to entry, marriage within 90 days, and eventually a green card. It runs in six clear stages: the I-129F petition, consular processing, U.S. entry, the wedding, adjustment of status, and removal of conditions two years later. Most couples spend well over a year getting through it, and the paperwork does not stop at the wedding.
Who Qualifies
Only U.S. citizens can sponsor a fiancé(e). Green card holders cannot. The sponsor proves citizenship with a birth certificate, U.S. passport, or naturalization certificate, and both partners must be legally free to marry, with divorce decrees or death certificates on hand if either was married before.
Federal law requires the couple to have met in person at least once within the two years before filing.1U.S. Citizenship and Immigration Services. Visas for Fiancees of U.S. Citizens Dated photos, flight records, and passport stamps placing you both in the same country at the same time are the standard proof.
The petition also requires the U.S. citizen to disclose convictions for domestic violence, assault, child abuse, stalking, sexual offenses, and similar crimes, along with any protective orders.2Office of the Law Revision Counsel. 8 USC 1184 – Admission of Nonimmigrants USCIS shares that information with the fiancé(e) before the visa is issued, a safeguard from the International Marriage Broker Regulation Act.3Office of the Law Revision Counsel. 8 USC 1375a – Domestic Violence Information and Resources for Immigrants and Regulation of International Marriage Brokers Petitioners who have already filed K-1 petitions for two or more different people, or whose last K-1 was approved less than two years ago, generally cannot file again without a waiver.
Step 1: Filing Form I-129F
The U.S. citizen files Form I-129F, Petition for Alien Fiancé(e), with USCIS to start the case.4U.S. Citizenship and Immigration Services. I-129F, Petition for Alien Fiancee It asks for five years of address and employment history for each partner, and it goes in with proof of citizenship, evidence both people are free to marry, proof of the in-person meeting, and documentation of a genuine relationship — phone records, financial transfers, statements from people who know you.5U.S. Citizenship and Immigration Services. Instructions for Petition for Alien Fiancee
Mail the package to the USCIS lockbox for your location. Paper filings can no longer be paid with personal checks, money orders, or cashier’s checks. Pay by credit, debit, or prepaid card using Form G-1450, or by bank transfer using Form G-1650.6U.S. Citizenship and Immigration Services. Pay With a Credit Card by Mail The current filing fee is on the USCIS fee schedule.7U.S. Citizenship and Immigration Services. G-1055, Fee Schedule
USCIS mails back Form I-797C, Notice of Action, confirming receipt and giving you a case number to track.8U.S. Citizenship and Immigration Services. Form I-797C, Notice of Action Receipt is not approval. The I-129F alone typically takes six to nine months to process. Once approved, USCIS forwards the case to the National Visa Center.
Step 2: Consular Processing Abroad
The National Visa Center contacts the fiancé(e) with instructions. The fiancé(e) completes Form DS-160, the Online Nonimmigrant Visa Application, and pays a $265 visa application fee.9U.S. Department of State. Fees for Visa Services
The U.S. citizen sponsor files Form I-134, Declaration of Financial Support, with documentation of income and resources to show the fiancé(e) will not be left without support during the engagement.10U.S. Citizenship and Immigration Services. I-134, Declaration of Financial Support It is less binding than the I-864 that comes later at the green card stage.
Medical Exam
Before the interview, the fiancé(e) sees a physician authorized by the U.S. embassy in their country for a physical, medical history review, and any required vaccinations. Required vaccines include mumps, measles, rubella, polio, tetanus, diphtheria, pertussis, hepatitis A and B, varicella, and several others.11Centers for Disease Control and Prevention. Vaccination Technical Instructions for Civil Surgeons Results go in a sealed envelope or straight to the consulate. Skipping any test or shot delays the case.
The Interview
At the embassy, a consular officer reviews the originals and asks about how you met, how you communicate, and your wedding plans, checking that the story matches the paperwork. If satisfied, the officer issues the K-1, usually stamped in the passport, and hands over a sealed document packet that must stay closed until the U.S. border.
Step 3: Entering the United States
A Customs and Border Protection officer at the port of entry inspects the visa, opens the sealed packet, and makes the final admission decision. Once admitted, the officer creates a digital Form I-94 arrival record. Keep it accessible; every immigration filing that follows will ask for it.
Apply for a Social Security number at a local Social Security Administration office about two weeks after arrival. Federal databases need time to sync, and applying too soon can cause the system to fail to verify status. Applying before the wedding is generally simpler, since your status still matches your K-1 entry record.
Step 4: Marry Within 90 Days
Federal law requires the couple to marry within 90 days of the fiancé(e)’s admission.2Office of the Law Revision Counsel. 8 USC 1184 – Admission of Nonimmigrants No extension. No grace period. No waiver. If the wedding does not happen in time, the fiancé(e) has to leave. Overstaying triggers removal proceedings and damages eligibility for future immigration benefits.
The marriage must be to the same U.S. citizen who filed the I-129F. Marrying someone else does not satisfy the requirement. Get a certified marriage certificate from the jurisdiction where you married; it is the foundation for the green card filing. Marriage license fees vary by county, generally $15 to $180.
Step 5: Adjustment of Status to a Green Card
Marriage inside the 90-day window does not automatically grant permanent residence. After the wedding, the new spouse files Form I-485, Application to Register Permanent Residence or Adjust Status, with USCIS.
At this stage the U.S. citizen spouse files Form I-864, Affidavit of Support Under Section 213A of the INA. Unlike the earlier I-134, the I-864 is a legally enforceable contract in which the sponsor agrees to maintain the immigrant at or above 125% of the federal poverty guidelines.12U.S. Citizenship and Immigration Services. Instructions for Affidavit of Support Under Section 213A of the INA The obligation runs until the immigrant becomes a U.S. citizen, earns 40 qualifying quarters of Social Security coverage, permanently leaves the country, or dies. Many sponsors underestimate how long that lasts.
The I-485 package usually goes in with a new Form I-765 for work authorization and Form I-131 for Advance Parole. Any K-2 children file their own I-485s. The current I-485 fee, which in recent years has included the work permit and travel authorization, is on the USCIS fee schedule.7U.S. Citizenship and Immigration Services. G-1055, Fee Schedule
Step 6: Removing Conditions After Two Years
Because most K-1 couples have been married less than two years when the green card is approved, the resulting permanent residence is conditional and expires after two years.13U.S. Citizenship and Immigration Services. Removing Conditions on Permanent Residence Based on Marriage To convert to full permanent residence, the couple jointly files Form I-751, Petition to Remove Conditions on Residence, during the 90 days immediately before the two-year anniversary of the green card.14U.S. Citizenship and Immigration Services. I-751, Petition to Remove Conditions on Residence
Filing early gets you rejected. Missing the deadline can terminate permanent residence. The I-751 needs evidence the marriage is real: joint tax returns, shared leases, joint accounts, birth certificates of any children. Waivers exist if the marriage has ended, but the evidence bar is higher.
Working and Traveling While the Case Is Pending
The K-1 visa itself does not authorize work. You can file Form I-765 for an Employment Authorization Document during the initial K-1 admission, and regulation makes K-1 holders eligible for one.15eCFR. 8 CFR 274a.12 – Classes of Aliens Authorized to Accept Employment In practice, EAD processing often runs longer than the 90-day admission window, so most K-1 holders wait and file a new I-765 with the I-485 after the wedding. Working without a valid EAD, including freelance work, is illegal and can sink the green card case.
Travel needs care too. Once you file for adjustment of status, leaving the U.S. without first getting Advance Parole (Form I-131) can cause USCIS to treat the green card application as abandoned.16U.S. Customs and Border Protection. Advance Parole File for Advance Parole before booking any international flights during the adjustment period.
Children on K-2 Visas
If your fiancé(e) has unmarried children under 21, they can come along on K-2 derivative visas.17U.S. Embassy Brazil. Visa for Fiancee of U.S. Citizen (K-1) and Minor Children (K-2) A K-2 child applying separately must do so within one year of the parent’s K-1 issuance date. K-2 children are subject to the same 90-day rule if the marriage does not happen.2Office of the Law Revision Counsel. 8 USC 1184 – Admission of Nonimmigrants A child who turns 21 or marries before the process ends loses K-2 eligibility.18U.S. Citizenship and Immigration Services. Child Status Protection Act (CSPA)
Timeline and Cost
Plan on 10 to 16 months from filing the I-129F to visa issuance, sometimes longer. Add several months more for adjustment of status after the wedding, then a two-year wait before the I-751 window opens.
Government fees add up across stages:
- I-129F petition, paid to USCIS. Current amount on the fee schedule.7U.S. Citizenship and Immigration Services. G-1055, Fee Schedule
- DS-160 visa application: $265 to the State Department before the consular interview.9U.S. Department of State. Fees for Visa Services
- Medical exam: varies by country and panel physician; budget several hundred dollars.
- I-485 adjustment of status, which in recent years has included the work permit and travel authorization. Check the current fee schedule.
- I-751 removal of conditions, filed about two years after green card approval. Check the current fee.
Beyond those, expect costs for document translations, notarized copies, international postage, and the marriage license itself. Attorneys, if used, add several thousand dollars. All in, the K-1 process from petition to full permanent residence commonly runs $2,000 to $5,000 in government fees alone, before any professional help.