For a U.S. citizen bringing a fiancé(e) from abroad to marry in the United States, the K-1 is the most direct route. It lets the foreign fiancé(e) enter lawfully and marry the U.S. citizen sponsor within 90 days of arrival; afterward the foreign spouse files Adjustment of Status (Form I-485) for a green card. This guide walks through all twelve steps in order, noting who handles each one, with the required forms, fees, and direct links to official USCIS forms.
What is a K-1 visa? The K-1 is a nonimmigrant visa for the foreign-citizen fiancé(e) of a U.S. citizen. The U.S. citizen sponsor files the petition; the foreign fiancé(e) then applies for the visa at a U.S. embassy or consulate abroad. After arrival they must marry the sponsor within 90 days, then apply with USCIS to adjust status to lawful permanent resident. Because the K-1 is effectively a path to immigrate, the foreign fiancé(e) must meet some of the requirements of an immigrant visa. Their eligible children receive K-2 visas.
The U.S. citizen sponsor and the foreign fiancé(e) must meet two basic requirements:
USCIS may grant an exception to the in-person meeting requirement based on extreme hardship to the U.S. citizen sponsor, or where it would violate the couple's culture for a man and woman to meet before marriage.
This step belongs to the U.S. citizen sponsor, who files Form I-129F (Petition for Alien Fiancé(e)) with USCIS to establish the foreign fiancé(e)'s K-1 eligibility.
| Form | Purpose | Fee | USCIS Link |
|---|---|---|---|
| I-129F | Petition for Alien Fiancé(e) | $675 | File I-129F → |
Filing online gets a $50 discount ($625 online).
What happens after approval:
⚠️ Two limitations: Form I-129F cannot be filed at a U.S. embassy, consulate, or USCIS office abroad. An approved I-129F is valid for 4 months; a consular officer may extend its validity if it expires before visa processing is complete.
Go to USCIS Form I-129F →This step is handled by the foreign fiancé(e) abroad: complete the DS-160 online nonimmigrant visa application, print the confirmation page, then pay the fees and attend the interview as instructed by the consulate. One piece belongs to the sponsor: the U.S. citizen sponsor completes Form I-134 and sends it for the interview.
| Form | Purpose | Fee | USCIS Link |
|---|---|---|---|
| DS-160 | Online nonimmigrant visa application (one per K applicant) | $265 | Complete DS-160 → |
| I-134 | Affidavit of Support (may be requested by the consular officer) | No fee | View I-134 → |
Required interview document checklist:
Eligible children: K-2 visas
No separate petition is required — the foreign fiancé(e)'s eligible children apply for K-2 visas based on the same approved I-129F, but the U.S. citizen sponsor must list them on the I-129F. Each K-2 applicant files a separate visa application and pays the K visa fee.
⚠️ Civil documents must be issued by the official issuing authority in the foreign fiancé(e)'s country. All documents not written in English (or the official language of the country where the application is filed) must be accompanied by a certified translation, with the translator's signed statement that the translation is accurate and that they are competent to translate. Bring clear, legible photocopies to the interview — originals and translations are returned. The consular officer may also request additional evidence that the relationship is genuine.
Before a visa can be issued, the foreign fiancé(e) and any accompanying children — regardless of age — must complete a medical examination performed by an authorized panel physician. The U.S. embassy or consulate provides instructions and a list of authorized panel physicians.
Complete the vaccinations at the same time: vaccinations are not required for K visa issuance, but they will be required at the green card stage after the marriage — completing them at this exam saves time and money later.
At the interview, the foreign fiancé(e) must show the consular officer they are not likely to become a public charge — either by demonstrating the ability to support themselves, or through support from the U.S. citizen sponsor. The consular officer will typically ask the sponsor to complete Form I-134, Affidavit of Support and send it for the interview.
| Stage | Form used | Income threshold | Other requirements |
|---|---|---|---|
| K visa interview | I-134 | 100% of poverty guideline | Show the sponsor is able to provide support |
| Green card after marriage | I-864 | 125% of poverty guideline | Most recent tax return and more (see Step 07) |
After the marriage, the sponsor must submit Form I-864 to USCIS with the adjustment of status application — a higher threshold and stricter documentation than the I-134, so tax records should be gathered early. (Check current I-864P income levels →)
The consular officer gives the foreign fiancé(e) their passport containing the K-1 visa and a sealed packet with the civil documents they provided, plus other documents prepared by the embassy or consulate.
Two critical deadlines:
⚠️ The sealed packet must not be opened. Only the DHS immigration official may open it at entry. On arrival the foreign fiancé(e) presents the passport with the visa and the unopened/sealed packet to the CBP officer. Note that a visa does not guarantee entry — CBP officials have the authority to permit or deny admission.
Once the marriage takes place, the foreign spouse becomes an immediate relative of a U.S. citizen. No separate I-130 is required (the approved I-129F serves as the basis), and there is no visa-bulletin wait — filing can begin as soon as the couple marries.
Who does what: the I-485 is filed by the foreign spouse; the I-864 Affidavit of Support is completed and signed by the U.S. citizen sponsor.
| Form | Purpose | Fee | USCIS Link |
|---|---|---|---|
| I-485 | Main adjustment-of-status application (filed by the foreign spouse) | $1,440 | File I-485 → |
| I-693 | Medical exam (from a USCIS-designated Civil Surgeon) | Charged by physician |
View I-693 → Find a Civil Surgeon → |
| I-864 | Affidavit of Support (completed by the sponsor) | No fee | File I-864 → |
Required supporting document checklist:
Bona fide marriage evidence
A K-1 green card is a marriage-based case, so the filing must also include evidence that the marriage is genuine (bona fide), such as:
I-864 Affidavit of Support — in detail
The U.S. citizen who filed the I-129F is also the financial sponsor and must complete Form I-864, Affidavit of Support, demonstrating the financial ability to support the foreign spouse — ensuring they will not become a public charge.
Income requirement: The sponsor must provide recent U.S. tax records showing income sufficient to support all household members (including the foreign spouse). The income threshold is generally at least 125% of the federal poverty line (check current I-864P levels →). Income that counts includes:
Required income documentation:
If the sponsor's income is insufficient — two ways to qualify:
Qualifying asset categories:
⚠️ All non-English documents must be accompanied by a certified English translation. The translation may be self-certified by the translator (no notarization required), but must include the translator's name, signature, and a statement attesting to the accuracy of the translation. If the foreign spouse skipped vaccinations at the K visa medical exam, they must complete them at this stage.
The following two ancillary applications are not required, but are recommended for filing concurrently with the I-485 — they let the foreign spouse work and travel lawfully while the I-485 is pending:
| Form | Purpose | Fee | USCIS Link |
|---|---|---|---|
| I-765 | Employment Authorization Document (EAD) | $260 | File I-765 → |
| I-131 | Advance Parole (travel authorization) | $630 | File I-131 → |
I-765 and I-131 are typically issued within 3–6 months of filing. The foreign spouse may not work until the EAD is approved, and Advance Parole must be approved before any international travel (see the critical warning in Step 09).
USCIS currently allows two filing methods:
Once USCIS receives the case, the foreign spouse obtains “authorized to stay” status and may remain lawfully in the U.S. while the case is under review.
⚠️ Critical warning: the foreign spouse must not depart the United States before the I-131 travel authorization is approved — an unauthorized departure may cause USCIS to deem the I-485 abandoned and deny it. Unlike other nonimmigrant categories, K-1 status does not allow re-entry on the original visa, so consult an attorney before any travel abroad.
File online via myUSCIS → I-485 Lockbox addresses →Approximately 1–2 weeks after filing, the foreign spouse will receive a paper Receipt Notice from USCIS. The notice includes a Receipt Number for checking the case status.
Check USCIS case status →Within 2–4 weeks of filing, the foreign spouse will receive a paper ASC (Application Support Center) notice to complete fingerprints and photos at a designated location. They should bring:
If the assigned time isn't convenient, they can reschedule online before the appointment time.
How to reschedule biometrics →USCIS processes cases largely in the order received and determines case by case whether an interview is required. If scheduled, the interview takes place at a local Field Office. K-1 green cards are marriage-based, so an interview to verify the bona fides of the marriage is quite common — and both spouses are usually asked to attend together.
Possible developments during review:
After approval, the foreign spouse's green card (Form I-551) will be mailed within several weeks to the address on file in the myUSCIS account. Make sure the address is correct — update it immediately after any move.
Check your case status → Update your address (AR-11) →After the foreign spouse gets the green card: If the couple has been married less than 2 years when the green card is approved — which is almost always the case for K-1 couples — the foreign spouse receives a two-year conditional green card and must file Form I-751 to remove conditions in the 90 days before it expires. That petition is normally filed jointly by both spouses (I-751 removal of conditions guide →). Permanent residents also have ongoing obligations: (1) file taxes every year; (2) avoid extended absences (over 6 months can trigger scrutiny; over 1 year is generally treated as abandonment); (3) avoid criminal conduct affecting status; (4) update the address on time (within 10 days of moving).
Children file their own I-485. After the marriage, a child holding a K-2 visa must file separately for adjustment of status — they cannot be included on the foreign spouse's I-485 — and the stepchild relationship with the U.S. citizen sponsor must have been created before the child turned 18.
Grounds that can make the foreign fiancé(e) ineligible include drug trafficking, overstaying a previous visa, and submitting fraudulent documents. If they are found ineligible, the consular officer will advise whether a waiver is available and what the waiver process is. Processing time varies from case to case; some applications require additional administrative processing after the interview. For the full official guide, see the U.S. Department of State K-1 visa page.