The difference between Immediate Relatives and Family Preference categories in family-based Green Cards lies in processing time and visa availability.

Immediate Relatives (IR)

These include spouses, unmarried children under 21, and parents of U.S. citizens. No visa limits apply, meaning visas are always available, leading to faster processing.

Family Preference (F)

This category includes certain relatives of U.S. citizens and Green Card holders, such as adult children and siblings of U.S. citizens and spouses or unmarried children of Green Card holders. Visa limits apply, leading to longer wait times due to annual quotas.

Immediate relatives typically have a smoother and quicker path to a Green Card, while family preference applicants may face years-long waiting periods.