Under the published terms each eligible joining spouse or unmarried child under twenty-one adds US$15,000 in processing and a US$1 million gift, including in corporate cases. The FAQ directs that they be included in the initial application for the associated processing benefits.
Every joining family member carries a full additional gift
Families sometimes assume the principal amount covers the household, and it does not. Each eligible joining spouse or unmarried child under twenty-one adds a nonrefundable US$15,000 processing charge and a further US$1 million gift, and this applies in corporate-sponsored cases as well as individual ones. For a household of four that changes the arithmetic entirely, so the list of who would actually join should be settled before any route is chosen rather than after.
A child's age and marital status matter, since eligibility as a joining child depends on being unmarried and under twenty-one. The official FAQ directs inclusion in the initial application for the processing benefits associated with it. Payment does not itself grant status to anyone, and each person's own admissibility remains a separate question.