Can a Green Card Holder File for a Child Over 21: F2B and CSPA

A green card holder can file for a child over 21, but only if that child is and stays unmarried. The petition goes into the Family Second Preference “B” category (F2B), and the wait for a visa number currently runs from roughly 9 years for most countries to about 17 years for children born in Mexico.¹ Filing starts with Form I-130, and the child cannot immigrate until their priority date becomes current on the monthly Visa Bulletin.

The Unmarried Rule Is Absolute

A lawful permanent resident can petition for an unmarried son or daughter of any age. A permanent resident cannot petition for a married son or daughter at all. That category does not exist for green card holders; only U.S. citizens can sponsor married children.²

The child has to remain unmarried from the day the petition is filed all the way through admission to the United States. Marriage at any point during the wait automatically revokes the petition.³ There is no conversion path and no waiver. Years of waiting can vanish with a wedding.

Immigration law treats an unmarried person over 21 as a “son or daughter” rather than a “child,” and places them in the F2B preference category.⁴

Who Counts as Your Child

The qualifying parent-child relationship can be established through biological birth, through adoption if it was finalized before the child turned 16 and the custody and residence requirements are met, or through a stepparent relationship if the marriage that created it happened before the child turned 18. A father petitioning for a child born out of wedlock must show either legitimation under applicable law or a genuine parent-child relationship that existed before the child turned 21.²

If your adult child already has children of their own, those grandchildren can come along on the same petition as derivative beneficiaries. You do not need a separate I-130 for each grandchild, and they take the principal beneficiary’s priority date and category.⁵

How Long the F2B Wait Actually Is

Every petition gets a priority date, which is the day USCIS receives the I-130. That date is your place in line. Each month, the Department of State publishes a Visa Bulletin showing which priority dates are being processed. Your child cannot move to the visa or adjustment stage until the bulletin reaches their priority date.⁶

The April 2026 Visa Bulletin gives a concrete picture of the F2B backlog:

Most countries: priority dates from May 2017 are current, or about a 9-year wait.
Mexico: priority dates from February 2009 are current, or about a 17-year wait.
Philippines: priority dates from April 2013 are current, or about a 13-year wait.
China and India move at the general worldwide pace.¹

Those numbers shift month to month, but the overall scale rarely changes dramatically. Filing early matters. Every month of delay in filing translates into a later priority date and a longer wait.

Filing the I-130

The process starts when the green card holder files Form I-130, Petition for Alien Relative, with USCIS. The form asks for biographical details about the petitioner and the beneficiary, including addresses, employment history, and travel information.⁷

You need to prove two things: your own permanent resident status, and the parent-child relationship. For status, submit a copy of the front and back of your green card, or a copy of your foreign passport showing an I-551 stamp. For the relationship, the child’s birth certificate showing your name is the primary evidence. A birth certificate in any language other than English needs a certified English translation with a statement from the translator confirming accuracy and competence.⁷

If names on the birth certificate no longer match current identification because of marriage, divorce, or a legal name change, include the court orders or other documents that connect them. Small inconsistencies can trigger a Request for Evidence and add months to a timeline already measured in years.

You can file online or by mail to a designated USCIS lockbox. As of 2024, the fee is $625 online and $675 on paper; USCIS adjusts these amounts periodically, so check the current fee schedule before submitting. Once USCIS accepts the filing, you will receive a receipt notice (Form I-797) showing the priority date. Keep it. It is your proof of place in line for the entire wait.

If You Become a U.S. Citizen During the Wait

If you naturalize while the F2B petition is pending, it automatically converts to the Family First Preference (F1) category for unmarried adult children of U.S. citizens.⁸ That sounds like an upgrade, and sometimes it is not. F1 has its own backlog, and for some countries the F1 wait is actually longer than F2B.

Section 6 of the Child Status Protection Act lets your child opt out of the conversion and keep the petition in F2B. That makes sense when the F2B priority date for the country is closer to current than the F1 date. Compare both categories on the current Visa Bulletin before you take the oath, because the conversion happens automatically at naturalization and the opt-out has to be affirmatively requested in writing to USCIS or the National Visa Center.⁸

Naturalization also changes what a marriage means. A marriage after you become a citizen converts the petition to the F3 category (married sons and daughters of citizens) rather than destroying it. That option does not exist while you remain a green card holder.

CSPA Protection for Children Who Turn 21 During the Wait

The Child Status Protection Act contains a formula that can help children who were under 21 when the petition was filed but aged out during the wait. Take the child’s age on the date a visa becomes available, then subtract the number of days the I-130 was pending before approval. The result is the child’s “CSPA age.”⁹

If the CSPA age comes out under 21, the child can remain in F2A (minor children of permanent residents), which generally moves faster than F2B. For example, if your child was 21 years and 4 months old when a visa became available and the petition had been pending 6 months, the CSPA age is 20 years and 10 months.⁹ The child must also seek to acquire permanent residence within one year of the visa becoming available, so watching the Visa Bulletin closely during that window is critical.

The Unlawful Presence Trap

If your adult child is already in the United States without lawful status, leaving for a consular interview can trigger reentry bars. More than 180 days but less than one year of unlawful presence produces a three-year bar; more than one year produces a ten-year bar. These bars apply automatically the moment the person departs.

A waiver exists on Form I-601, but it requires showing that denial would cause “extreme hardship” to a qualifying U.S. citizen or permanent resident relative. Ordinary consequences of family separation do not meet that standard on their own, though multiple hardship factors together can.¹⁰ If your child has any history of unlawful presence, get legal advice before they leave the country for an interview. Departing without a waiver strategy can turn a 9-year wait into a 19-year one.

Financial Sponsorship at the End of the Wait

When a visa number finally becomes available, you have to prove you earn enough to support your child. You do this on Form I-864, Affidavit of Support, which creates a legally binding obligation to keep your child’s income at or above 125 percent of the federal poverty guidelines.¹¹

For 2026, a sponsor in the 48 contiguous states petitioning for one adult child (household size of two) needs to show annual income of at least $27,050. Alaska and Hawaii have higher thresholds.¹² Required evidence includes your most recent federal tax return with W-2s and any 1099s; recent pay stubs and an employer letter help in a borderline case.

If your income is short, a joint sponsor who is a U.S. citizen or permanent resident can agree to share the obligation. The joint sponsor has to meet the income threshold independently and file their own I-864 with tax documents. You still file yours as well.¹³ The financial obligation continues until the immigrant becomes a U.S. citizen, earns 40 qualifying quarters of Social Security work credits, permanently leaves the country, or dies.

1
Travel.State.Gov. Visa Bulletin for April 2026
2
U.S. Citizenship and Immigration Services. Bringing Children, Sons and Daughters to Live in the United States as Permanent Residents
3
U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 6, Part B, Chapter 5 – Adjudication of Family-Based Petitions
4
U.S. Citizenship and Immigration Services. Family of Green Card Holders (Permanent Residents)
5
U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 6, Part B, Chapter 2 – General Eligibility Requirements
6
U.S. Citizenship and Immigration Services. Green Card for Family Preference Immigrants
7
U.S. Citizenship and Immigration Services. I-130, Petition for Alien Relative
8
Department of State. 9 FAM 502.1-1 – Child Status Protection Act (CSPA) – Section: 9 FAM 502.1-1(D)(7) Conversion of Petition Status
9
U.S. Citizenship and Immigration Services. Child Status Protection Act (CSPA)
10
U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 9, Part B, Chapter 5 – Extreme Hardship Considerations and Factors
11
U.S. Citizenship and Immigration Services. Affidavit of Support Under Section 213A of the INA
12
U.S. Citizenship and Immigration Services. HHS Poverty Guidelines for Affidavit of Support
13
U.S. Department of State. I-864 Affidavit of Support (FAQs)