Yes, a U.S. citizen who is at least 21 can petition for a sister while she is in the USA. The I-130 petition works the same way whether your sister is here or abroad, but her being inside the country matters enormously for what comes after filing, because the F4 sibling category runs a 15-to-21-year wait and she has to survive that wait in some kind of lawful status. Filing the petition, by itself, gives her no status at all.
Who Can File
Only U.S. citizens can sponsor a sibling. Lawful permanent residents cannot. Federal law reserves the F4 category for brothers and sisters of citizens aged 21 or older.1Office of the Law Revision Counsel. 8 USC 1153 Allocation of Immigrant Visas Citizenship by birth, naturalization, or derivation all count. You’ll prove it with a U.S. passport, birth certificate, or naturalization certificate.
You also have to prove the sibling relationship. Birth certificates for both of you showing at least one common parent is the core evidence. If you share only a father, expect to submit more, such as a marriage certificate for your parents or other proof of a legal parent-child relationship. If names have changed through marriage or a court order, bring the paper trail from the original name to the current one. Foreign-language documents need a certified English translation with the translator’s signed statement of competence and accuracy.
You must also show you can financially support her through Form I-864, Affidavit of Support, a legally enforceable contract with the U.S. government.2U.S. Citizenship and Immigration Services. Affidavit of Support Your income must be at least 125% of the federal poverty guidelines for your household size.3U.S. Citizenship and Immigration Services. Instructions for Form I-864 Affidavit of Support Under Section 213A of the INA For 2026, that is $27,050 per year for a two-person household in the 48 contiguous states and D.C., rising with each additional person.4U.S. Citizenship and Immigration Services. I-864P HHS Poverty Guidelines for Affidavit of Support If your income falls short, a joint sponsor can co-sign. You don’t file the I-864 with the petition. It comes later, when a visa number is available.
Filing the I-130
The process starts with Form I-130, Petition for Alien Relative.5U.S. Citizenship and Immigration Services. I-130 Petition for Alien Relative You file with USCIS along with proof of your citizenship, birth certificates for both siblings, and passport-style photographs. The filing fee is $625 as of the most recent USCIS fee schedule, though fees change. Confirm the current amount on Form G-1055 before mailing.
Once USCIS accepts the petition, you get a receipt number. The date USCIS receives your properly filed I-130 becomes your sister’s priority date, and that date sets her place in line. Approval typically takes several months to over a year, but approval by itself does not get her a green card. It only confirms the sibling relationship is legitimate.
How Long the Wait Is
The F4 category is one of the most backlogged in the entire immigration system. Congress caps family-sponsored preference visas at roughly 226,000 per year across the four preference categories, and F4 visas are limited to about 65,000 of those annually.6U.S. Citizenship and Immigration Services. Visa Availability and Priority Dates Demand far exceeds supply.
The Department of State publishes a monthly Visa Bulletin showing which priority dates are being processed. As of the April 2026 Visa Bulletin, the F4 final action dates are:7U.S. Department of State. Visa Bulletin for April 2026
- Most countries: March 22, 2005 (about a 21-year wait)
- India: December 22, 2010 (about 15 years)
- Mexico: February 1, 2016 (about 10 years)
- Philippines: February 1, 2016 (about 10 years)
Your sister’s country of birth, not her current residence or citizenship, decides which line she is in. Nothing moves forward until her priority date becomes current on the bulletin. Until then, the approved I-130 sits in the queue.
The Status Trap While She Is in the U.S.
This is the part that matters most when your sister is already inside the country. Filing an I-130 gives her no lawful status, and the F4 wait is measured in decades. She has to maintain lawful status on her own the entire time, or leave before her authorized stay ends.
If she is here on a nonimmigrant visa like a B-2 tourist visa or an F-1 student visa, those have expiration dates and conditions. A tourist visa might authorize six months. A student visa lasts the length of the program. Once the authorized period ends, she starts accumulating “unlawful presence,” which triggers reentry bars if she later leaves:
- More than 180 days but less than one year of unlawful presence: a three-year bar on reentry after departure
- One year or more of unlawful presence: a ten-year bar on reentry after departure
The bars are triggered by departing after the unlawful presence accumulates, not by the overstay itself.8Office of the Law Revision Counsel. 8 USC 1182 Inadmissible Aliens That creates a painful dilemma. Staying unlawfully keeps compounding the problem, but leaving can lock her out for years. USCIS publishes guidance on how unlawful presence is calculated and the limited exceptions.9U.S. Citizenship and Immigration Services. Unlawful Presence and Inadmissibility
Realistically, almost no one can hold a nonimmigrant visa for 15 to 21 years. Tourist visas don’t last. Student visas end when the degree ends. Work visas have their own caps. Many sibling beneficiaries end up returning home and completing the process at a U.S. consulate abroad.
Whether She Can Get the Green Card Without Leaving
When her priority date finally becomes current, she applies through one of two paths. If she is in the U.S., she may file Form I-485 to adjust status. If she is abroad, she goes through consular processing.10U.S. Citizenship and Immigration Services. I-485 Application to Register Permanent Residence or Adjust Status
Adjustment inside the U.S. carries a hard requirement that trips up many people in your sister’s situation. She must have been “inspected and admitted or paroled” into the United States, meaning she entered through a port of entry with proper documentation.11Office of the Law Revision Counsel. 8 USC 1255 Adjustment of Status of Nonimmigrant to That of Person Admitted for Permanent Residence She also has to be in lawful status, have an immediately available visa number, and be physically present in the U.S. when she files.12U.S. Citizenship and Immigration Services. Green Card for Family Preference Immigrants
If she entered without inspection, overstayed, or otherwise fell out of status, she generally cannot adjust in the U.S. She would have to leave and use consular processing. And leaving after unlawful presence has accumulated can trigger the three- or ten-year bar. For many people in that position, the only realistic route is a separate waiver of inadmissibility application, with its own legal standards and timelines.
The Narrow 245(i) Exception
Section 245(i) of the Immigration and Nationality Act once allowed some people to adjust status in the U.S. despite unauthorized work or lost status, in exchange for a $1,000 penalty fee.13U.S. Citizenship and Immigration Services. Green Card through INA 245(i) Adjustment It only applies to beneficiaries of an immigrant visa petition or labor certification filed on or before April 30, 2001, and for petitions filed between January 15, 1998, and that date the beneficiary must also have been physically present in the U.S. on December 21, 2000. The cutoff was more than 25 years ago, so this rarely helps someone filing a new sibling petition today.
Consular Processing
Most F4 beneficiaries take the consular route. After the I-130 is approved and the priority date is current, the case moves to the National Visa Center, which collects documents and fees and schedules an interview at a U.S. embassy or consulate in the beneficiary’s home country. Your sister attends the interview abroad and, if approved, receives an immigrant visa to enter the U.S. as a permanent resident.
Her Spouse and Children
Your sister’s spouse and unmarried children under 21 can qualify as derivative beneficiaries, immigrating with her without separate petitions. They ride her priority date and process at the same time.
The problem is children who turn 21 during the wait. A “child” for immigration purposes must be unmarried and under 21, and turning 21 causes them to “age out.” The Child Status Protection Act (CSPA) offers partial relief through a formula that subtracts the days the I-130 was pending from the child’s age when a visa becomes available.14U.S. Citizenship and Immigration Services. Child Status Protection Act (CSPA) If that adjusted age is under 21, the child still qualifies. Given the F4 timelines, most children will age out anyway. A child who ages out may need a separate petition if otherwise eligible.
If You Die During the Wait
Because F4 waits run decades, the petitioner’s death is a real risk. Under INA Section 204(l), USCIS may still approve the adjustment if the beneficiary was living in the U.S. when the petitioner died and continues to live here.15U.S. Citizenship and Immigration Services. Chapter 9 – Death of Petitioner or Principal Beneficiary She will need a substitute sponsor to sign a new Affidavit of Support, since the original commitment ends at death. If you die before she has filed for adjustment, USCIS can reinstate the underlying petition through humanitarian reinstatement. That is discretionary and never guaranteed.
Medical Exam and Interview
Before a green card issues, your sister has to complete a medical examination. If she adjusts status in the U.S., a USCIS-designated civil surgeon performs the exam and records the results on Form I-693, filed with the I-485.16U.S. Citizenship and Immigration Services. USCIS Changes Validity Period for Any Form I-693 Signed on or after Nov 1, 2023 A Form I-693 signed on or after November 1, 2023, is only valid while the I-485 it accompanies is pending. If that application is denied or withdrawn, a new exam is needed for any future filing. Costs typically run between $150 and $700 depending on the provider. If she goes through a consulate abroad, the embassy designates its own approved physicians.
USCIS doesn’t usually interview sibling I-130 petitions.17U.S. Citizenship and Immigration Services. Chapter 5 – Adjudication of Family-Based Petitions The consequential interview comes later, when she applies for the green card itself, whether at a USCIS field office for adjustment or at the embassy for consular processing.
If the Petition Is Denied
If USCIS denies the I-130, the denial notice will explain why. Common grounds are insufficient evidence of the sibling relationship, inconsistencies in the documents, or questions about the petitioner’s citizenship. You can appeal by filing Form I-290B within 30 days of the decision, or 33 days if it was mailed.18U.S. Citizenship and Immigration Services. I-290B Notice of Appeal or Motion You can also file a motion to reopen with new evidence, or a motion to reconsider arguing that USCIS misapplied the law. Sometimes it’s more practical to refile a fresh I-130 with stronger evidence than to appeal.