Siblings can sponsor each other for U.S. immigration, but only under specific conditions. The process takes far longer than most families expect. According to U.S. Citizenship and Immigration Services, siblings of U.S. citizens may apply for a green card under the fourth family preference category, known as F4, which is limited to 65,000 visas per year.
Because demand far exceeds that cap, wait times for most applicants stretch well over a decade. If your family is trying to navigate this process in 2026, Mevorah & Giglio Law Offices can help. Our Bloomingdale, IL immigration lawyer can help you understand your options and avoid costly mistakes.
Who Can Sponsor a Sibling for Immigration to the United States?
Only U.S. citizens can sponsor a sibling for a green card. Lawful permanent residents, known as green card holders, do not have this option. Under the Immigration and Nationality Act, specifically 8 U.S.C. § 1153(a)(4), brothers and sisters of adult U.S. citizens are recognized as a family preference category. However, only a citizen, not a permanent resident, may petition on a sibling’s behalf. The sponsoring citizen must also be at least 21 years old at the time of filing.