What the K-1 visa actually is
The K-1 is a nonimmigrant visa that lets the foreign fiancé(e) of a U.S. citizen enter the United States for one specific purpose: to marry that citizen within 90 days of arriving. It is not a green card, and it is not a visitor visa. Think of it as a bridge — it carries your fiancé(e) across the border so the wedding can happen here, on U.S. soil, after which the path to permanent residence opens up.
One detail trips a lot of people up, so it is worth saying plainly: only U.S. citizens can file a K-1 petition. Lawful permanent residents — green-card holders — cannot. If you are a green-card holder hoping to bring a fiancé(e) here, the K-1 simply is not available to you; you would marry first and then file a family petition for your spouse. We come back to that below.
The core requirements
Before any forms get filed, your relationship needs to clear three basic tests. None of them is exotic, but each one matters and each one gets checked.
You both have to be free to marry
Both you and your fiancé(e) must be legally able to marry each other. In practice that usually means any prior marriages have been fully and legally ended — through divorce, annulment, or the death of a former spouse — and that you can document it. Loose ends here are one of the most common reasons a case stalls.
You generally have to have met in person
As a rule, you and your fiancé(e) must have met face-to-face at least once within the two years before you file the petition. There are limited waivers — for example, where meeting in person would violate a long-held custom of the foreign fiancé(e)'s culture, or would cause extreme hardship to the U.S. citizen — but those are exceptions, not the norm. Most couples satisfy this by simply having visited one another, and by keeping the photos, tickets, and stamps that prove it.
You both genuinely intend to marry
The relationship has to be real, and you both have to actually intend to marry within that 90-day window. The K-1 is built for couples who are serious about a life together, not for paperwork convenience, and the evidence you submit should reflect that genuine intent.
The steps, in order
The K-1 journey moves through a few hands — first USCIS, then the National Visa Center, then a U.S. embassy or consulate abroad. Here is the sequence.
1. File Form I-129F. The U.S. citizen files Form I-129F, the Petition for Alien Fiancé(e), with U.S. Citizenship and Immigration Services. This is where you establish the relationship — the proof you have met, that you are both free to marry, and that you intend to wed within 90 days.
2. USCIS reviews and (hopefully) approves. If USCIS is satisfied, it approves the petition. Approval is not the visa itself; it is permission to move to the next stage.
3. The case travels to the National Visa Center, then the consulate. After approval, the case is forwarded to the National Visa Center and then on to the U.S. embassy or consulate in the country where your fiancé(e) lives.
4. The interview and medical exam. Your fiancé(e) attends a consular interview and completes a required medical exam with an approved physician. The interview is where a consular officer confirms the relationship is real and that everything checks out.
5. Entry on the K-1. Once the visa is issued, your fiancé(e) travels to the United States and is admitted on the K-1. The 90-day clock starts the day they enter.
The 90-day rule
This is the part to circle in red. From the day your fiancé(e) enters the country on the K-1, you have exactly 90 days to get legally married to each other. Not 90 days to set a date — 90 days to actually be married. There are no extensions, and the deadline is firm.
After the wedding: the green card
Once you are married, your new spouse can apply for a green card from inside the United States — without leaving — through a process called adjustment of status, by filing Form I-485. This is the step that converts the temporary K-1 stay into lawful permanent residence.
Two more applications usually ride along with the I-485. Your spouse can file Form I-765 for a work permit (an employment authorization document), so they can take a job while the green-card case is pending, and Form I-131 for a travel document (advance parole), so they can travel internationally without abandoning the application. Filed together, these let your spouse live more normally during the wait. We walk through the whole second step in detail on our adjustment of status guide.
The K-1 gets your fiancé(e) here so you can marry. The green card is a separate, second step that happens after the wedding — so it pays to think about both halves of the journey from the very beginning.
K-1 versus marrying abroad and doing a CR-1
The K-1 is not the only way to reunite. If you marry your fiancé(e) abroad first, you can instead pursue a CR-1 spousal immigrant visa through consular processing. Couples often ask which is better, and the honest answer is that it depends on your priorities.
The K-1 can be the faster way to physically be together — your fiancé(e) often arrives sooner — but it tends to cost more overall once you add the K-1 fees and the separate adjustment-of-status filing, and it requires that second green-card step after the wedding. The CR-1 takes a different shape: you marry abroad, go through consular processing, and your spouse arrives in the United States already a permanent resident, with the green card essentially in hand and no domestic adjustment step to file. One route prioritizes getting under the same roof quickly; the other prioritizes arriving with status already settled. There is no universally "right" choice — only the one that fits your timeline, your budget, and where you both are in life.
The 2026 context
It would be a disservice to describe any family-immigration path in 2026 without noting the climate around it. Across family categories, in-person interviews are back and documentation is being scrutinized more closely than it was a few years ago. For K-1 couples that means the consular interview deserves real preparation, and the evidence of a genuine relationship — the meetings, the messages, the shared life you are building — carries more weight than ever. We cover the broader shift, including how USCIS now treats the in-country green-card step, in our 2026 news roundup.
Two K-specific changes are worth knowing. First, K-visa applicants are now asked for five years of social media handles on the DS-160 — and since March 2026, they're required to set their accounts to public while the case is vetted. Second, a new $250 visa integrity fee (created by 2025 legislation) applies to K visas at issuance, on top of the $675 I-129F filing fee and the $265 visa application fee — confirm the collection details with your consulate.
One practical note on cost: the government filing fees for the K-1 petition, the visa, and the later green-card forms are set by USCIS and the U.S. Department of State, and they change from time to time. The figures we use are current for 2026 — you can see how they apply to your situation with our fee calculator.
Common questions
Can a green-card holder file a K-1 petition?
No. Only U.S. citizens can file a K-1 fiancé(e) petition. If you are a lawful permanent resident, the path is different: you would marry your partner first and then file a family-based spousal petition for them. A short consultation can map out exactly how that works for your situation.
What happens if we don't marry within the 90 days?
The 90-day deadline is firm, and the K-1 does not authorize a longer stay or convert into something else if the wedding does not happen in time. There are no extensions. Staying past the deadline without marrying creates serious immigration problems, so if your plans are slipping, talk to an attorney well before the clock runs out — do not wait until day 89.
If the K-1 sounds like your path, our K-1 fiancé(e) visa service page walks through how we handle the case from the first form to the green card. And whenever you are ready, you can request a free consultation and get a straight answer about which route fits your family.
This article is general information, current as of July 2026, and not legal advice.