Visto n' Visa
Blog
Notícias e artigos
Destinations
Careers
Immigrants

What is the maximum age for a child on the K-4 visa?

The K-4 visa is intended for unmarried children under 21 years of age of the K-3 holder, allowing their entry and stay in the U.S. during the residency process.

Written by

Victoria Harper

Editor-in-Chief

Updated on December 15, 2025
2 min read
Share

Let”s start by providing some context about the topic. The K-4 visa is intended for minor children accompanying the K-3 visa holder, which is granted to the foreign spouse of a U.S. citizen in certain situations. Therefore, this visa allows the children to also enter and remain in the United States during the processing of the permanent residence application.

Regarding the eligibility of children under the K-4 visa, U.S. immigration law states that they must be under 21 years old and, additionally, remain children only if they are unmarried. This means that, to qualify for the K-4 visa, the child cannot have reached 21 years of age at the time of the petition nor be married.

It is important to always emphasize the need to strictly follow current immigration laws. In cases of doubt or when dealing with specific and complex issues, it is advisable to seek guidance from reliable sources and, if necessary, consult professionals specialized in the subject. This way, you protect yourself against risks of misinformation, scams, and marketing campaigns that may promise miraculous solutions.

Remember, staying informed about the requirements and changes in immigration policies is fundamental for success in any process. Maintaining compliance with U.S. legislation promotes a smoother journey and prevents future complications.

Learn more about K-3 Visa

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

Editor-in-Chief

Meet the author

Leading journalism and editorial content at Visto n’ Visa, Victoria helps make immigration topics clear, trustworthy, and easy to understand. Her focus is on delivering useful, human, and relevant content for people exploring new paths abroad.

Victoria's tips

What is the maximum age for a child on the K-4 visa?

The K-4 visa is intended for unmarried children under 21 years of age of the K-3 holder, allowing their entry and stay in the U.S. during the residency process.

Recommended reading about K-3

More content about K-3