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Can I have how many children on the K-4?

There is no limit to the number of children on the K-4 visa, as long as they are under 21 years old, unmarried, and prove their relationship with the K-3 beneficiary, respecting U.S. immigration laws.

Written by

Victoria Harper

Editor-in-Chief

Updated on February 2, 2026
2 min read
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The K-4 visa is intended for unmarried children under 21 years old of the spouse who is the beneficiary of the K-3 visa. In other words, it allows the children to accompany the father or mother who immigrated with the K-3 visa, enabling a closer family separation.

In practice, there is no maximum number of children who can be included under the K-4 visa, as long as each one meets the eligibility requirements – they need to be under 21 years old, unmarried, and able to prove the relationship with the K-3 beneficiary. Each child must be included individually in the process, so it is important to gather all necessary documentation, such as birth certificates and other records that prove the family relationship.

It is worth remembering that strictly following the United States immigration laws is essential. Therefore, it is always recommended to research updated information and refer to reliable sources, such as official U.S. government websites. Furthermore, it is prudent to be cautious of offers from companies or marketing campaigns that promise guaranteed results – these services may lack sufficient experience or may even attempt to apply inadequate methods.

Each case has its particularities, and immigration processes can change over time. Thus, staying informed and seeking specialized guidance, always within the legal parameters, is the best way to avoid problems and ensure that all requirements are properly met.

Learn more about K-3

Purpose
Spouse of U.S. citizen
Duration
2 years
Work
Authorized
Processing
12-18 months
All about K-3

About the author

Victoria Harper

Editor-in-Chief

Meet the author

As a journalist and lead editor at Visto n’ Visa, Victoria helps ensure that immigration topics are covered in a clear, trustworthy, and easy-to-understand way. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

Victoria's tips

Can I have how many children on the K-4?

There is no limit to the number of children on the K-4 visa, as long as they are under 21 years old, unmarried, and prove their relationship with the K-3 beneficiary, respecting U.S. immigration laws.

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