K-1 Fiance Visa: How It Works, Start to Green Card

Written by the Ellis Porter content team. This article has not been reviewed by an attorney. It is general information, not legal advice.

In plain English: The K-1 fiance visa lets a US citizen bring their foreign fiance to the United States specifically to get married, and you must marry within 90 days of arrival. Only a US citizen (not a green card holder) can file it. You generally must have met in person within the last two years, and both of you must be legally free to marry. After the wedding, the foreign spouse applies for a green card through adjustment of status. The process runs through USCIS, the National Visa Center, and a US consulate, and it takes many months. Timelines and eligibility are case-specific.

Bringing your fiance home to marry

If you are a US citizen and the person you want to marry lives abroad, the K-1 fiance visa is the path most couples ask about. Here is how it actually works, in plain terms, from the first form to the green card.

The K-1 fiance visa lets the foreign fiance of a US citizen enter the United States to get married, and you must marry within 90 days of arrival. Its legal basis is INA 101(a)(15)(K). After the wedding, the foreign spouse applies for a green card through adjustment of status.

Two rules define the K-1: only a US citizen (not a green card holder) can petition, and the 90-day marriage deadline is firm. This page walks the requirements, the process, and how it compares to marrying abroad.

What the K-1 requires

A K-1 case, filed on Form I-129F, generally requires:

• US citizen petitioner. A lawful permanent resident cannot file a K-1.
• Intent to marry within 90 days of the fiance’s entry.
• Both legally free to marry. Any prior marriages must be legally ended.
• Met in person within the last two years, unless a waiver applies (for extreme hardship to the petitioner or where an in-person meeting would violate established custom).
• A bona fide relationship, genuine, not for immigration purposes.

Whether a meeting waiver applies, or how to document a genuine relationship, is fact-specific.

The K-1 process, step by step

1. File Form I-129F with USCIS (the US citizen petitions).
2. USCIS approves and sends the case to the National Visa Center, then to the appropriate US consulate.
3. Consular processing: the fiance completes the application, medical exam, and interview abroad, and receives the K-1 visa.
4. Entry and marriage: the fiance enters the US and the couple marries within 90 days.
5. Adjustment of status: the new spouse files for a green card (Form I-485).

Because it runs through USCIS, the NVC, and a consulate, and then a separate green card process, the K-1 involves multiple stages and many months. The waiting is the hard part, and it helps to know each stage is normal and expected rather than a sign something is wrong. Check current USCIS and consular processing times.

The 90-day rule

The 90-day deadline is not flexible. If you do not marry within 90 days, the K-1 status cannot be extended, and the foreign fiance is expected to depart. You must also marry the specific US citizen who petitioned; the K-1 cannot be used to enter and marry someone else. Plan the wedding before the fiance arrives.

K-1 vs marrying abroad (CR-1/IR-1)

Couples often weigh the K-1 against marrying abroad and filing a spousal immigrant visa (CR-1/IR-1).

The K-1 gets the fiance to the US sooner to marry, but adds a separate green card step after. The spousal visa brings the spouse in already as a resident, but the initial wait can be longer. Which is better depends on your priorities and situation.

Work authorization and children

• Work: a K-1 holder can apply for work authorization, but because the K-1 lasts only 90 days, many instead get work authorization with the green card after marrying.
• Children: the fiance’s unmarried children under 21 can generally come as K-2 derivatives if listed on the I-129F, and they adjust status after the marriage.

Getting it right

The K-1 is document- and deadline-driven, and mistakes (a missed meeting-waiver argument, a thin relationship record, a timing error) cause real delays. You do not have to figure out which pieces matter on your own. Whether the K-1 or a spousal visa fits your situation, and how to document your case, is a case-specific judgment a licensed Ellis Porter attorney can help you with.

This article is general information, not legal advice, and does not create an attorney-client relationship. Fiance visa eligibility and timelines depend on the specific facts of your case. Consult a licensed immigration attorney.

Frequently asked questions

What is a K-1 fiance visa?

The K-1 is a nonimmigrant visa, under INA 101(a)(15)(K), that lets the foreign fiance of a US citizen enter the US to marry that citizen within 90 days of arrival. After the marriage, the foreign spouse applies for a green card through adjustment of status. The K-1 petition is filed on Form I-129F. Only a US citizen may petition; green card holders cannot use the K-1.

What are the requirements for a fiance visa?

Generally: the petitioner is a US citizen; you both intend to marry within 90 days of the fiance’s US entry; you are both legally free to marry (any prior marriages ended); and you have met in person within the two years before filing, unless a waiver applies for extreme hardship or established cultural custom. The couple must also show a bona fide, genuine relationship. Whether a waiver applies is fact-specific.

How long does the K-1 fiance visa take?

It varies and runs through several stages: the Form I-129F petition at USCIS, then the National Visa Center, then consular processing and the interview abroad. The total commonly takes many months and shifts with USCIS and consular workloads. After entry and marriage, the green card (adjustment of status) is a separate additional process. Check current USCIS and consular processing times.

Do you have to get married on a K-1 visa?

Yes. The K-1 is specifically for marrying the petitioning US citizen within 90 days of entry. If you do not marry within 90 days, the K-1 status cannot be extended and the foreign fiance is expected to depart. You must marry the specific citizen who petitioned; you cannot use the K-1 to enter and marry someone else.

Can a fiance visa holder work in the US?

A K-1 holder may apply for work authorization (an EAD) after entering, but because the K-1 is valid for only 90 days, many people instead wait and apply for work authorization together with the green card (adjustment of status) after the marriage. The green card process provides work authorization while it is pending. The best approach is case-specific.

Is the K-1 faster than a marriage green card from abroad?

It depends. The K-1 gets the fiance to the US sooner to marry, then requires a separate adjustment-of-status process for the green card. Marrying abroad and filing a CR-1/IR-1 immigrant visa brings the spouse to the US already as a permanent resident, but the up-front wait can be longer. Which is faster and better depends on your situation and priorities.

Can my fiance’s children come on a K-1?

Yes. The unmarried children under 21 of a K-1 fiance can generally accompany or follow as K-2 derivatives, if they are listed on the Form I-129F petition. They too adjust status after the parent marries the US citizen. The specifics for children are worth confirming, since timing and listing them correctly matters.