A K-1 visa, or fiancé visa, allows a fiancé(e) 90 days to marry their American spouse. Most of the points about K-2 VS K-3 also apply to K-1 VS K-3. The biggest difference between the K-2 and K-3 is that the K-2 is restricted to unmarried children under 21, usually as part of a K-1 visa. A child with a K-2 visa is about to “age out” of that visa and wants another option to get into the U.S. A key difference between K-2 and K-4 visa holders is that K-2 visa holders can modify their status without filling out Form I-130.

Source: Economic Times May 26, 2023 13:40 UTC