The only time taken off a child's age is the time the paperwork spent in review, and the time spent waiting in line still counts.

Families waiting for a green card often ask the same question: "What happens if our child turns 21 while we wait?" Under immigration law, a "child" who can receive a green card together with a parent is a person who is unmarried and under 21. Many people believe "it's fine because the child was under 21 when we applied." That is true for some families and false for others, because the way age is counted depends on who filed and which path the green card comes through.

If a U.S. citizen parent filed, age is set on the day the paperwork was filed

"The USCIS Policy Manual, USCIS's guide for its officers, states that the age of a child petitioned for by a U.S. citizen parent is fixed on the day the petition (the form filed with USCIS asking to sponsor this person as a family member) is filed, and that if the child was under 21 on that day, the child is still treated as a child even after turning 21."

There is a law made to ease the hardship of children who turn 21 while the paperwork is still being reviewed. It is the Child Status Protection Act (CSPA), which took effect on August 6, 2002. This law left the meaning of "child" as it was and set out only a separate way of counting age. And that method differs depending on the path through which the green card comes.

The simplest case is a family in which a U.S. citizen parent petitions for an unmarried child under 21. Immigration law calls this relationship an immediate relative, and does not put these people in the line that waits its turn. In this case, the child's age is locked at the age on the day the petition was filed. The saying "it's fine because the child was under 21 when we applied" is about exactly this kind of family. When a U.S. citizen petitions for a spouse, a separate petition must also be filed for that spouse's child, and the child's age is also taken from the day that petition was filed.

There are also cases where a lawful permanent resident parent has filed a petition, and later the parent goes through naturalization, that is, becomes a U.S. citizen. In this case, what matters is how old the child was on the day the parent became a citizen. If the child was under 21 on that day, the child becomes an immediate relative and the age is fixed on that day as well.

Both cases come with one condition: the child must stay unmarried. These are the only families whose child's age is fixed on a single date. The counting method is different for a child petitioned for by a lawful permanent resident parent, a derivative child who comes along with a sibling when a U.S. citizen petitions for that sibling (a niece or nephew of the person who filed), and a derivative child who comes along with a parent receiving an employment-based green card.

Families who wait in line subtract only the petition review time from the child's age

"USCIS gives this example. If the child's age on the day the family's turn came was 21 years and 4 months, and the petition took 6 months to be reviewed, the age recognized by law is 20 years and 10 months, so the child is treated as a child."

The calculation is a single subtraction. Take the child's actual age on the day the green card turn came, and subtract the number of days the petition spent in review. The age that results must be under 21 for the child to be recognized as a child. The days spent in review are counted only from the day the petition was filed to the day it was approved.

To know "the day the turn came," you need to look at the Visa Bulletin. The Visa Bulletin is the green card order chart the Department of State publishes every month. The date that sets your place in line is called the priority date, and it is usually the day the paperwork was first filed. The Visa Bulletin lists a cutoff date, and if your priority date is earlier than that date, your turn has come. The first day of the month in which that happens is the day the turn came. If the petition had not yet been approved by then, the day it was approved is the day the turn came.

The time spent waiting in line after the petition was approved is not subtracted. Look at the line for U.S. citizens petitioning for siblings: in the October 2026 Visa Bulletin, for "all other countries" (every country except a few that have their own longer lines), the cutoff date that decides whether a person's turn has come (the Final Action Date) is October 22, 2011. That means people who filed about 15 years ago have reached their turn. Even if the petition took several years to be reviewed, only those few years come off the age. For example, say there is a nephew who was 10 years old when the paperwork was filed, and after the petition was approved in 3 years, he waited in line for 12 years. His actual age on the day his turn came is 25, and subtracting 3 years gives 22. He is not recognized as a child.

In employment-based green cards, a petition filed by an employer is sometimes approved within a few weeks when premium processing is used. Fast approval is welcome, but for the child's age it means there are almost no days to subtract. In that case, the child's actual age on the day the turn comes is almost exactly the calculated age.

Even if the age calculation works, missing a condition means the child is not recognized as a child

"The Policy Manual states that merely asking an attorney or an organization about the process is not treated as taking action to seek a green card."

Families who wait in line have three more things to take care of. The first is the deadline. Action to seek a green card must be taken within 1 year from the day the turn came. If the child is inside the United States, this means properly filing the green card application (Form I-485), and if the child is abroad, it means submitting the immigrant visa application or paying the immigrant visa fee.

Even if the 1 year has passed, USCIS may consider the circumstances and accept the filing if the applicant proves extraordinary circumstances, such as the applicant or a family member having been seriously ill. However, not having enough money or starting preparations late is not accepted as such a circumstance. Before the application is filed, the Visa Bulletin cutoff date may also move back to an earlier date, so that a turn that had opened closes again. In that case, the age is calculated anew from the day the turn opens again, so the child may turn 21 in the meantime. The 1-year deadline is given again starting from that day.

The second is marriage. The Child Status Protection Act left in place the requirement that the child be unmarried. Even if the calculated age is 19, a child who marries is no longer a "child."

The third is the point most often explained in consultations these days. The Visa Bulletin has two kinds of charts. One chart lists the dates for which applications will be accepted, and the other lists the dates for which final decisions will be made. In some months the first chart allows an application to be filed early, but filing that way does not fix the child's age. For applications filed on or after August 15, 2025, USCIS calculates the child's age using the final decision chart. Applications filed before then follow the old standard, and the age calculated at the time of filing is kept. Under the new standard, even a child whose application was filed early may not be recognized as a child if the age calculated on the day the turn came under the final decision chart is 21 or older.

Still, filing early is not wasted effort. It satisfies the first condition, that the green card must be sought within 1 year. And if the application was filed after the turn came under the final decision chart, and the calculated age at that time was under 21, the age stays fixed even if the Visa Bulletin cutoff date later moves back.

If the calculated age is over 21, the child waits separately from the parents, in a longer line

"In the October 2026 Visa Bulletin, the Final Action Date for all other countries is September 22, 2026 for the line for children under 21 of lawful permanent residents, and August 22, 2019 for the line for unmarried sons and daughters age 21 or older of lawful permanent residents."

A child petitioned for directly by a lawful permanent resident parent does not have to get back in line from the start even if the calculated age is over 21. The child moves from the "children under 21" line to the "unmarried sons and daughters 21 or older" line and keeps the date he or she first got in line. However, as the cutoff dates above show, the two lines are about 7 years apart.

A derivative child who was coming along with a parent in a sibling petition or an employment-based green card cannot receive a green card together with the parent if the calculated age is over 21. What remains in that case is for the parent to receive the green card first and then file a new petition for that child. The line the child joins is the line for unmarried sons and daughters 21 or older of lawful permanent residents, and the child cannot keep the date of first getting in line, so the wait starts over from the day the new petition is filed.

That is why the first thing asked in a consultation is four dates: the day the petition was filed, the day it was approved, the child's birthday, and this month's Visa Bulletin Final Action Date. This calculation can come out differently over a difference of a single day, so until the dates are laid out and actually counted, no one can say whether the child qualifies or not.

If a parent is a lawful permanent resident and has reached the point of being able to apply for citizenship, there is one more thing worth weighing. If the parent naturalizes before the child turns 21, the child's age is fixed on that day and the child becomes an immediate relative who does not wait in line. If the parent naturalizes after the child has already turned 21, this does not happen and the result may be different, so the dates should be weighed before naturalizing.

Conclusion

If your child is over 18, there are three things to do now. First, take out the notices you received from USCIS, check the day the petition was filed and the day it was approved, and do the calculation using your child's birthday and this month's Visa Bulletin. When your turn comes, do not use up the whole year; file the application right away. Simply starting a consultation does not count as meeting the 1-year deadline, so the documents should be ready before your turn comes. If your child is thinking about marriage, it is safer to put it off until after receiving the green card. Once married, the child is not recognized as a child no matter what the calculated age is. This is a hard conversation to bring up at the last minute, so talk it over as a family ahead of time.

Frequently Asked Questions

Q. Is it fine as long as my child was under 21 when we applied for the green card?

Only when a U.S. citizen parent petitioned for an unmarried child under 21. In that case, the age is fixed on the day the petition was filed. On paths that wait in line, such as a petition by a lawful permanent resident parent, a sibling petition, or an employment-based green card, the age is calculated by subtracting the number of days the petition spent in review from the child's age on the day the turn came.

Q. Is the time spent waiting in line also subtracted from my child's age?

No. The only time subtracted from the age is the review period, from the day the petition was filed to the day it was approved. The time spent waiting for your turn after the petition was approved counts toward the age as it is.

Q. After our turn comes, by when must we apply?

Action to seek a green card must be taken within 1 year from the day the turn came. If the child is inside the United States, this means properly filing the green card application (Form I-485). Merely asking an attorney or an organization about the process does not count. And the child must stay unmarried.

Disclaimer: This column provides general information and is not legal advice for a particular case. Individual immigration matters should be discussed with a qualified immigration attorney.

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