A U.S. citizen can sponsor their child to immigrate to the United States. There are three situations in which a U.S. citizen may sponsor a child: first, sponsoring a child under 21 years old (child of a U.S. citizen). Second, sponsoring an unmarried child over 21 years old. Third, sponsoring a married child.
A U.S. citizen can sponsor a child under 21 years old who is unmarried (also referred to as a child of a U.S. citizen). In this case, petitions for a minor child are not subject to annual visa limits, which means the visa becomes available immediately without waiting in line. The total processing time to complete the case is usually about 1.5 to 2 years.
An important point to note is that when sponsoring a child under 21, the age of 21 is determined at the time the petition is filed. This means that if a U.S. citizen files a petition when the child is 20 years, 11 months, and 29 days old, the child will still be considered a minor under this category even if they are already over 21 by the time of the interview.
For cases where a U.S. citizen sponsors an unmarried child under 21, there is a special provision for children under 18. The petitioner does not need to submit Form I-864 (Affidavit of Support) and does not need to provide proof of income or tax returns. Instead, Form I-864W can be submitted to request an exemption. The reason is that under the Child Citizenship Act (CCA), the child will automatically become a U.S. citizen upon entering the United States and residing with the parent. Therefore, the financial sponsorship obligation is waived at that time.
A U.S. citizen can sponsor an unmarried child over 21 years old. This petition falls under the F1 preference category. Each year, the number of visas issued in this category is limited under U.S. immigration law. As a result, the waiting time depends on the visa bulletin published each year. Currently, the estimated waiting time for this category is around 9 years or more, though it may change monthly depending on the visa bulletin updates from the NVC.
A U.S. citizen can sponsor a married child. This petition falls under the F3 preference category. The annual limit for this category is 23,400 visas, and it is also controlled by the visa bulletin. Currently, the waiting time for the F3 category is approximately 13 years or more, and the timeline may change each month depending on the visa bulletin.

A U.S. citizen submits a petition to sponsor their child (Form I-130), along with evidence proving the parent–child relationship and the required filing fee to USCIS.
After USCIS approves the petition, the child sponsorship case will be transferred to the National Visa Center (NVC).

To file a child sponsorship petition, the petitioner must meet the following requirements:
If the petitioner does not meet the income requirement, they may use:
U.S. citizens must submit:
For the beneficiary:
For the U.S. citizen petitioner:
Evidence proving the parent–child relationship may include: photos of the parent and child together from childhood to the present, the child’s school records (if any), household registration listing both the parent and the child, family religious records (if any), report cards, and money transfer receipts (if any).

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