A U.S. citizen age 21 or older can sponsor parents, and parents are immediate relatives: there is no annual quota line, so the time depends only on USCIS and consular processing. Brothers and sisters are a different story. Siblings of U.S. citizens are in the F4 preference category, and in the October 2026 Visa Bulletin cases with priority dates before October 22, 2011 can be finalized — a wait of roughly 15 years. Green-card holders cannot sponsor parents or siblings at all.
Key Facts (as of October 2026)
Who can sponsor parents: U.S. citizens age 21+; permanent residents cannot. Who can sponsor siblings: U.S. citizens age 21+ (F4); permanent residents cannot. Parents are immediate relatives: no Visa Bulletin wait; timing is USCIS (I-130) plus adjustment of status or consular processing (egov.uscis.gov/processing-times). Current queue (Final Action Dates, October 2026, All Chargeability incl. South Korea): F1 (unmarried adult children of citizens) 22 Jan 2020 · F2B (unmarried adult children of green-card holders) 22 Aug 2019 · F3 (married children of citizens) 22 Oct 2014 · F4 (siblings of citizens) 22 Oct 2011. Core forms: Form I-130 (one per relative; $675 paper / $625 online), then the I-864 Affidavit of Support; in the U.S., I-485 if eligible; abroad, the National Visa Center and then the U.S. Embassy in Seoul. 2026 change: an expanded public-charge review applies to I-485s filed on or after September 18, 2026, so a solid I-864 matters more than ever.
1. Who Can You Sponsor?
| Relative | U.S. citizen (21+) | Green-card holder | Category |
|---|---|---|---|
| Parent | Yes | No | Immediate relative (no quota wait) |
| Spouse / unmarried child under 21 | Yes | Yes (F2A) | Immediate relative / F2A |
| Unmarried son or daughter 21+ | Yes (F1) | Yes (F2B) | F1 / F2B |
| Married son or daughter | Yes (F3) | No | F3 |
| Brother or sister | Yes (F4) | No | F4 |
A citizen petitioning for a parent must be 21 or older. For a sibling, the petitioner must also be 21 or older and share at least one parent; step- and adopted-sibling cases have extra conditions.
2. Parents: The Realistic Process
- File a separate Form I-130 for each parent, with proof of your U.S. citizenship and a birth record that names the parent (for Korean families, the 가족관계증명서 and 기본증명서 with certified English translations).
- If your parent is in the U.S. after a lawful entry, such as on a visitor visa, they may be able to file Form I-485 together with the I-130. Entering on a visitor visa with the intent to immigrate raises issues, so the entry history should be reviewed first.
- If your parent is in Korea, the approved I-130 goes to the National Visa Center and then to an interview at the U.S. Embassy in Seoul.
- Affidavit of Support (I-864): the petitioner must meet 125% of the federal poverty guidelines for the household size; a joint sponsor can help. Under the 2026 public-charge review, officers weigh age, health and finances, so for older parents a strong I-864 and health-insurance planning matter. See our 2026 public charge guide.
- Timing: there is no quota wait. The pace is set by USCIS and the embassy and changes month to month; no attorney can promise a date.
3. Siblings (F4): The Honest Wait
- The F4 line is long because of annual numerical limits. In the October 2026 bulletin, F4 cases with priority dates before October 22, 2011 can be finalized, so a petition filed today joins a line that is currently about 15 years long. The line can move faster or slower; the Visa Bulletin is the only reliable guide.
- Why file anyway: your priority date is locked in on the day USCIS receives the I-130, and your sibling’s spouse and unmarried children under 21 can usually immigrate with them as derivatives.
- Plan for age-outs: derivative children can “age out” at 21. The Child Status Protection Act (CSPA) helps in some cases; it needs a case-by-case review.
- Other paths may be faster for some siblings: an employment-based or investor path (EB-2, EB-3, E-2 or EB-5) may fit better than waiting in F4. See Employment-Based Immigration and EB-5 Investor Visa.
4. Adult Children (F1, F2B, F3): Quick Guide
F1 covers unmarried sons and daughters (21+) of citizens, F2B unmarried sons and daughters (21+) of green-card holders, and F3 married sons and daughters of citizens; current dates are in the Key Facts above. Marriage changes the category: an F2B beneficiary who marries loses eligibility, and an F1 beneficiary who marries moves to F3. For spouses, see Marriage Green Card 2026.
5. How to Read the Visa Bulletin
- Your priority date is the date USCIS received your I-130.
- Final Action Dates show when a green card can actually be issued. Dates for Filing show when the National Visa Center or USCIS may accept documents early; USCIS announces each month which chart it accepts for I-485s at uscis.gov/visabulletininfo.
- People born in South Korea use the “All Chargeability Areas” column.
Many green-card holders naturalize first so they can sponsor parents and siblings. See U.S. citizenship for Korean nationals and Family Immigration.
6. Frequently Asked Questions
Primary Sources
- U.S. Department of State, Visa Bulletin for October 2026 — travel.state.gov
- USCIS, Form I-130, Petition for Alien Relative — uscis.gov/i-130; Fee Schedule (G-1055) — uscis.gov/g-1055
- USCIS, Green Card for Immediate Relatives / Family Preference Immigrants — uscis.gov
- USCIS, Adjustment of Status Filing Charts from the Visa Bulletin — uscis.gov/visabulletininfo
- INA §201(b)(2)(A)(i) (immediate relatives); §203(a) (family preferences); §203(h) (Child Status Protection Act)
Attorney Advertising. General Information Only — Not Legal Advice. This article is provided for general informational purposes and reflects law, policy, fees and Visa Bulletin dates as of October 2026; dates change monthly. It does not constitute legal advice and does not create an attorney-client relationship. Processing times are set by USCIS and the Department of State and are not guaranteed. Prior results do not guarantee a similar outcome.