3-Line Summary
- While the principle for inviting family members of marriage immigrants (F-1-5 Visit and Cohabitation) is to invite parents, adult siblings can be invited instead if the parents have passed away or if they cannot enter the country due to old age or illness. In such cases, you must provide documentation explaining “why it cannot be the parents.”
- The area where requests for supplementation occur most frequently is the connection of family relationships. You must link the inviter’s spouse and the invitee as children of the same parents through birth documents, and if the name notation on the passport differs from the home country documents, you must attach evidence to confirm they are the same person.
- The inviter is the Korean spouse, and it is easier to match the childbirth schedule if you obtain the Visa Issuance Confirmation first within Korea. You can invite them until the end of September of the year the child turns 9 years old.
Table of Contents
- A consultation that began with a single line in a medical certificate
- F-1-5 Family Invitation for Marriage Immigrants: Requirements for inviting siblings
- Documents proving circumstances that prevent parents from visiting
- Proving family relationships and confirming identity for identical name notations
- Invitation Statement and documents for applying for Visa Issuance Confirmation
- Alien registration after entry and precautions during stay
- Checklist before inviting family members of marriage immigrants
1. A consultation that began with a single line in a medical certificate

I am an administrative agent (administrative scrivener) working in Songdo, Incheon. I would like to introduce an anecdote I encountered while working.
The first piece of evidence was a single photo from a mobile phone. It was a hospital medical certificate written in Vietnamese, and under the diagnosis name, it said, “Hemodialysis three times a week, avoid long-distance travel.” Below the photo, a short message was attached: “My mother cannot come. Can my younger sibling come?”
The person who sent the message was a marriage immigrant in her late 20s living in Namdong-gu, Incheon. Originally from central Vietnam, she had been in Korea for five years and was staying under the marriage immigrant (F-6) status. She had a three-year-old son and was 24 weeks pregnant with her second child. Her husband worked day and night shifts at an auto parts factory. Her expected due date was in mid-January.
The original plan was simple: to invite her mother as a parent of a marriage immigrant to stay with her before and after childbirth. However, in the summer, her mother’s kidney function deteriorated rapidly, and as she began dialysis, the act of riding an airplane itself became difficult. Her father had passed away four years ago.
The remaining family member was a twenty-five-year-old younger sister working as a pharmacy employee in Vietnam. In the local community, opinions were conflicting; some said “only parents are allowed” and others said “siblings are not allowed,” and an acquaintance reportedly said, “You can just come on a tourist visa and leave after a few months.” Entering as a short-term visitor for tourism purposes to stay long-term is not permitted. Planning to enter on a short-term visit to take care of a child and stay for a long time does not match the purpose of stay, and if the period is overstayed, it may block future invitations.
2. F-1-5 Family Invitation for Marriage Immigrants: Requirements for inviting siblings

The F-1-5 status is a type of Visit and Cohabitation (F-1) visa for when a marriage immigrant is pregnant or raising young children and wishes to invite family members from their home country. This is based on the Visit and Cohabitation status in Attachment 1-2 of the Enforcement Decree of the Immigration Act, and the detailed criteria follow the Ministry of Justice’s residence guidelines.
In this consultation, there were four requirements checked first:
- Inviter: Since the wife in this family has not yet acquired Korean nationality or permanent residency, the Korean husband becomes the inviter. We changed the plan from trying to write the invitation in the wife’s own name.
- Need for Childcare: There must be a pregnancy or a minor child requiring care. This family met both criteria, with a 24-week pregnancy and a three-year-old child.
- Child’s Age Deadline: You can invite them until the end of September of the year the child turns 9 years old. For single-parent families and families with three or more minor children, the deadline is the end of September of the year the child turns 12.
- Invitee: In principle, it is the parents of the marriage immigrant. If there are circumstances such as the parents being deceased or unable to enter the country due to old age or illness, adult siblings can be invited instead.
Ultimately, the crux of this case was only the fourth item. Since inviting siblings is an exception, simply writing “my mother is sick” on the application is not enough. The reviewer must be able to reach the conclusion—just by looking at the documents—that “the parents cannot come, and this sibling will fulfill that role instead.”
There is something I often tell those who seek help regarding visa and residence issues. Since there is rarely an opportunity to add verbal explanations to immigration documents, you must bundle the documents so that they explain one another.
3. Documents Proving Circumstances Preventing Parents from Visiting

There were two problems with the photo of the first medical certificate we received.
One was the date of issuance. The medical certificate was issued in early July, but since then, the frequency of dialysis had increased from twice a week to three times a week. A medical certificate that is more than three months apart from the time of application cannot reflect the current condition. We decided to obtain a new recent medical certificate and a dialysis schedule confirmation from the hospital my mother attends.
The other issue was that the medical certificate only stated “refrain from moving.” While this could be interpreted as meaning that long-distance flights are difficult, it leaves room for interpretation for an officer who only looks at the translation. Therefore, we attached the dialysis schedule to show, through specific dates, that she cannot leave the country for several months because she must go to the hospital on fixed days three times a week.
Regarding my father, we prepared a death certificate. The original of this document was at home, but it was only available in Vietnamese and did not have a translation.
The evidentiary materials regarding my parents’ circumstances collected as follows are:
- Mother’s recent medical certificate (issued within 1 month of the application date)
- Dialysis treatment schedule confirmation
- Father’s death certificate
- Korean translations of each document (including translator’s confirmation)
- For foreign official documents, we pre-checked whether an Apostille or consular authentication was required.
Since the authentication method for foreign documents varies depending on the issuing country and the type of document, we prepared them accordingly after checking with the receiving institution. Since my mother’s medical certificate was a document issued by a hospital, we also had to check whether notarization procedures were necessary.
4. Verification of Family Relationship and Identity via Matching Names

In sibling invitations, the part where supplements are most frequently requested is the connection of family relationships. For parent invitations, it is finished once the parents’ names appear on the birth documents of the marriage immigrant; however, for sibling invitations, one must link the fact that the two individuals are children of the same parents.
Therefore, we prepared birth certificates for both the older sister and the younger sister. The connection is only made if the parents’ name fields in both documents are identical. However, an omission was discovered here.
In the older sister’s birth certificate, the mother’s name included the surname and middle name, but in the younger sister’s, the middle name was missing. Even though they are the same person, the notation differed across the documents. Vietnamese names are long, consisting of the surname, middle name, and given name, and it is common to omit the middle name or remove tone marks depending on when and by which institution the document was created.
We also checked the English name in the younger sister’s passport. The passport was written without tone marks, while the birth certificate had tone marks attached. While this level is considered the same name, the mother’s name with the missing middle name required a separate explanation.
We organized it as follows:
- We submitted a copy of the mother’s ID to confirm her formal name.
- We obtained additional family verification documents (documents showing the same household/family composition) issued by the administrative authorities in the home country.
- We placed a one-page name comparison table at the very front. This is a table that shows side-by-side how the names of the mother, the older sister, and the younger sister were written in each document.
We also unified the translations. Because different people had translated each document, the same name had been transcribed into three different versions in Korean, so we standardized them into one version based on the English notation in the passport. If the translated notations differ, the examining officer will first suspect that they are different people.
5. Documents for Application for Letter of Confirmation of Visa Issuance and Statement of Reason for Invitation

We chose the method of first obtaining a Letter of Confirmation of Visa Issuance within Korea (Article 9 of the Immigration Act). If the younger sister applies for the visa directly at the local diplomatic office in Vietnam, the inviter’s documents must be sent via international mail, and if a request for supplementation is made, it takes time for documents to travel back and forth. By obtaining the confirmation letter within Korea, the younger sister only needs to receive the visa at her local diplomatic office using that number.
Since the expected due date was in mid-January, we worked backward to set a schedule aiming for her to enter the country at least six weeks prior to that date.
The prepared documents were as follows:
From the Inviter (Korean Husband) side
- Application for Confirmation of Visa Issuance
- Letter of Invitation, Letter of Guarantee
- Family Relationship Certificate, Marriage Relationship Certificate, Certified Copy of Resident Registration
- Certificate of Employment and income documentation
- Basic Certificate of the Child, Wife’s Pregnancy Confirmation (issued by the OB/GYN)
From the Invitee (Younger Sister) side
- Copy of Passport, Photograph
- Birth Certificate and Family Verification Documents (including translations)
- Certificate of Employment from her current workplace
Proof of Parents’ Circumstances
- Medical Certificate, Confirmation of Dialysis Schedule, Death Certificate, and translations (summarized in Part 3)
We attached one page of a Statement of Reason for Invitation to this. The initial draft written by my wife was three pages long, containing lengthy descriptions of her mother’s illness and the difficulties of living in Korea. While her feelings were fully conveyed, the facts necessary for the examination were scattered throughout the text.
We rewrote the statement as follows:
- Family composition (husband’s shift work, a three-year-old child, 24 weeks pregnant, and the expected due date)
- Reasons why the parents cannot come (father’s death, mother’s dialysis three times a week) and the corresponding attached document numbers
- The role the younger sister will fulfill (caring for the first child before and after childbirth, supporting the mother)
- Intended period of stay and return plans (returning within the leave period from her job in her home country)
We removed emotional sentences such as “She must come” or “There is no other way.” Instead, we attached the husband’s shift schedule to visually demonstrate through specific dates that only one adult is at home during his night shifts.
The younger sister’s certificate of employment was also significant. Since the “Visit and Stay” status does not allow for employment, the fact that she has a job to return to supports the explanation that the purpose of her stay is childcare support.
As our office is registered as an immigration agency, we handled the preparation and submission of the application to the Incheon Immigration Office.
6. Alien Registration After Entry and Precautions During Stay

The Letter of Confirmation of Visa Issuance was issued in about three weeks after submission without any requests for supplementation. This case was completed within that timeframe because the documents were well-coordinated from the start; however, the examination period varies depending on the timing and the jurisdiction. The younger sister received her visa at the local diplomatic office and entered the country seven weeks before the expected due date.
There were three things we took care of after her entry.
- Alien Registration: A person intending to stay for more than 90 days must complete alien registration within 90 days from the date of entry (Article 31 of the Immigration Act). The younger sister completed her registration two weeks after entry.
- Prohibition of Employment: One cannot work under the “Visit and Stay” status. When I heard that an acquaintance of the older sister asked, “Could you help out at the restaurant just on weekends?”, I explained that receiving daily wages would constitute activities outside the scope of her status, which would be disadvantageous for her next extension and re-invitation.
- Extension Schedule: To stay beyond the permitted period, one must apply for an extension permit before the expiration date (Article 25 of the same Act). The duration of the extension granted at once is determined by the examination of the Immigration Office. We decided to mark the expiration date on the calendar and gather childcare-related materials in advance to submit during the extension.
There was also a small incident. As a gesture of greeting, the younger sister left a Vietnamese coffee filter and a bag of coffee beans at the office. It was a method of placing a metal filter over a cup and pouring water. No one in the office had ever brewed it properly before. The first time we tried, the water drained all at once, leaving it tasting almost like plain water; eventually, it tasted right only after the older sister taught us via video call, saying, “Pour a little water and wait.”
The second child was born one week earlier than expected. It was in the early morning while the husband was on a night shift; the younger sister looked after the first child, and the older sister went to the hospital by taxi. The role we had planned was put to use exactly as intended during those early morning hours.
7. Checklist Before Inviting Family Members of Marriage Immigrants

In most cases of inviting family members of marriage immigrants, the invitation is for parents, but there are quite a few households where the parents are unable to come. In such instances, I often see people attempting to solve the issue through short-term visits without knowing that the option of inviting siblings exists, which ultimately leads to residency status problems.
If you are in this situation, please check the following first:
- Who the inviter is: If the marriage immigrant does not have Korean citizenship or permanent residency status, the Korean spouse is the inviter (there are exceptions for single-parent marriage immigrants).
- Child’s age deadline: Check whether the child has not passed the end of September in the year they turn 9 years old.
- Evidence regarding the circumstances preventing parents from coming: Prepare documents that show dates, such as recently issued medical certificates, treatment schedules, or death certificates.
- Connection as children of the same parents: Check if the parents’ names match on the birth documents of the two siblings; if they differ, check if there is documentation to verify they are the same person.
- Consistency in translation notation: Standardize all names in all translations to match the English spelling in the passport.
Since inviting siblings is an application that requires proving exceptional circumstances, repeated requests for supplementation will occur if the documents do not align with one another. If you are struggling with issues regarding inviting family members of marriage immigrants or “visit and cohabitation” residency status in Incheon or Songdo, please check the order of procedures before gathering your documents.
If you are curious about a similar situation, please feel free to leave an inquiry.
