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HomeUS Visas for Thai Citizens
US Fiancé(e) Visa (K-1)
How We Help
US Fiancé(e) Visa (K-1)
for Thai Citizens
For a Thai fiancé(e) planning to marry a US citizen in the United States, the K-1 process involves evidence from both partners and careful preparation before the visa application reaches the consular stage. Lawyers for Expats Thailand helps couples organise their relationship, civil and supporting documents and prepare the Thai applicant for each stage of the K-1 process.
How We Help
What we do when you apply
A K-1 case is prepared around your relationship and circumstances, not a template. Here is what happens from the first call through to the visa decision.
1
Understand Your Relationship and Marriage Plans
We start by understanding your relationship, how you met, your history together, your plans to marry in the United States and the circumstances of both partners.
2
Build the Relationship and Petition Evidence
We organise the relationship history, civil documents, evidence of meeting in person where relevant and other supporting material needed to present the couple's circumstances clearly.
3
Prepare for the Visa Stage
We help organise the Thai applicant's documents and information for the visa-processing stage and prepare the applicant for the consular process.
4
Support You Through the Process
We remain involved as the case progresses, helping organise further documents or information where appropriate and keeping the applicant and petitioner clear about the next stage. US government authorities make the petition and visa decisions, not Lawyers for Expats Thailand.
What We Do For Our Clients
The full scope of what we handle
A K-1 case touches the relationship, the petition and the visa stage together. Here is the actual scope of what our team handles.
Understanding the K-1 Route
The K-1 visa is for the foreign fiancé(e) of a US citizen who intends to enter the United States to marry that same US citizen petitioner. The petitioner is a US citizen, the beneficiary is the foreign fiancé(e), both must be legally free to marry, the relationship must be genuine, and marriage is intended to take place in the United States. The K-1 visa itself is not permanent residence.
Q
Can we use a K-1 visa if we are already married?
No. The K-1 is a fiancé(e) visa route for a couple who intend to marry after the foreign fiancé(e) enters the United States. Couples who are already legally married generally need to consider the appropriate spouse immigration route instead.
Preparing Evidence of the Relationship
Relationship evidence should reflect the couple's genuine circumstances. Depending on the relationship this may involve how the couple met, relationship history, time spent together, photographs, communications, travel records, visits, involvement with each other's families, plans for marriage, and other genuine relationship evidence.
Q
Do we need to prove that our relationship is genuine?
Yes. The K-1 process requires the relationship and intention to marry to be established. We organise the supporting evidence around the couple's real history and circumstances rather than using the same document package for every case.
Evidence That the Couple Has Met in Person
Current USCIS rules generally require the couple to have met each other in person during the two years immediately before Form I-129F is filed, although limited exceptions can apply. We help organise relevant evidence such as travel records, passport evidence, photographs, accommodation and travel evidence, and other genuine records of time spent together.
Q
Do we have to have met each other in person before filing?
In general, USCIS requires the couple to have met in person during the two years before the fiancé(e) petition is filed, although limited exceptions exist under US immigration rules. We review the couple's actual circumstances before the petition evidence is prepared.
Preparing Documents From the US Citizen Petitioner
The US citizen side of the case may involve evidence relating to US citizenship, identity, relationship history, intention to marry, previous marriages where relevant, legal termination of previous marriages where relevant, petition information, supporting financial information at the relevant stage, and other evidence required by the process.
Preparing the Thai Applicant for the Visa and Consular Stage
After the petition moves through the relevant US processing stages, the Thai fiancé(e) proceeds through the visa application and consular process. Depending on current instructions, this can involve visa application information, identity and civil documents, relationship evidence, medical requirements, police or civil documentation where applicable, financial-support documentation where applicable, interview preparation, and additional documentation requested by the consular authority. We help organise and review the applicant's documentation and help the applicant understand the purpose of the consular interview — we do not script false answers.
Q
Does an approved I-129F petition guarantee that the K-1 visa will be issued?
No. Petition approval and visa issuance are separate stages. The Thai applicant must still complete the applicable visa process, and the final visa decision is made by the relevant US consular authority.
Marriage After Arrival and the Next Immigration Stage
Current K-1 rules require the foreign fiancé(e) to marry the same US citizen petitioner within 90 days of admission to the United States. The K-1 visa itself does not confer permanent resident status.
Q
Who makes the final decision on the K-1 visa?
The relevant US government authorities make the petition and visa decisions. Lawyers for Expats Thailand helps prepare and organise the case but does not control or guarantee the outcome.
Our Commitment To You
What you can hold us to
Your Genuine Relationship Comes First
We prepare the case around the real history and circumstances of your relationship rather than treating every couple as identical.
Evidence From Both Partners Brought Together
We organise information from the US citizen petitioner and Thai fiancé(e) so the relationship, civil documents and marriage plans are presented consistently.
Prepared for Each Stage
We help both partners understand what documentation is needed as the petition and visa process progresses.
Careful Preparation Without False Promises
We prepare the case thoroughly while remaining clear that US government authorities make the petition and visa decisions.
Who You'll Work With
Real people, not a case number
Kanokpich Ukritdutsadee (Lawyer Pook)
Managing Director & Lead Barrister
Leads the preparation of K-1 fiancé(e) visa cases for Thai clients, personally responsible for ensuring the relationship evidence presented reflects the couple's genuine circumstances.
Brian Ramsden
General Manager of Foreign Affairs
Your first point of contact. Brian coordinates the initial assessment of the relationship and petition evidence, and stays as your liaison as the case moves toward the visa and interview stage.
Related Resources
More on visas abroad for Thai citizens
For the other US visa services we handle, or other destinations we assist Thai citizens travelling to, see the pages below.
US Visas for Thai Citizens
→Visitor, spouse, family-based and business visitor visas, and visa refusals, for travel to the United States
US Visitor Visa (B-1/B-2) for Thai Citizens
→Application preparation for Thai citizens travelling to the United States for tourism, family visits or permitted business visits
Visas Abroad for Thai Citizens
→Visa application support for Thai citizens travelling to the UK, Europe, Australia, the US and more
Lawyers for Expats Thailand, 2026. The content of this page is general legal information and does not constitute legal advice for any specific matter. Please contact us for advice on your individual circumstances.