How long is the wait for an F4 sibling petition in 2026?

INA § 203(a)(4) creates the F4 family-preference category for brothers and sisters of U.S. citizens. F4 is the slowest visa category in the U.S. immigration system because it is heavily oversubscribed and capped at roughly 65,000 visas per year worldwide with a 7% per-country cap. The current Visa Bulletin (December 2025) puts the F4 Final Action Date at around February 2008 for rest-of-world, March 2001 for Mexico, and August 2001 for the Philippines — which means USCIS is now adjudicating petitions filed roughly 14–24 years ago.

Why filing today still matters

The wait is on the calendar, not on the work. The day the I-130 is filed sets the priority date, and that date locks the sibling's place in line. If the citizen petitioner delays five years, the sibling waits five extra years. Filing also captures the sibling's children under age 21 as F4 derivatives, who follow the principal beneficiary onto the same priority date.

Two age traps that destroy F4 cases

1. Aging out of derivative status. A sibling's child who is under 21 at filing but turns 21 before the visa becomes available "ages out" of derivative eligibility unless protected by the Child Status Protection Act (CSPA, INA § 203(h)). CSPA does a complex math calculation — subtracting USCIS processing time from the child's age — that often falls 1–3 years short of what the family needs. We run that calculation at filing and again at each Visa Bulletin movement.
2. The petitioner's death. If the citizen petitioner dies before the visa is current, the I-130 is automatically revoked unless humanitarian reinstatement is granted under INA § 204(l). That requires the sibling to have been physically present in the U.S. at the petitioner's death — a fact the family may not learn until it is too late.

How we handle this

We file the I-130 the day the citizen is eligible (immediately, with no minimum waiting period beyond age 21). We document the sibling's spouse and minor children at the time of filing so derivative claims survive later changes. We re-audit the case at every CSPA-relevant moment — child's 18th birthday, USCIS priority-date movement, petitioner's significant medical event. The petition itself is paper; the strategy is what gets the family across the finish line.