Calculate your child's CSPA age using the official USCIS formula. Find out instantly whether your child is protected from aging out of US immigration eligibility under the Child Status Protection Act.
Enter all four dates to compute CSPA age under the official USCIS formula
The USCIS CSPA formula requires four key dates. Our calculator applies the official formula automatically and delivers an instant verdict.
Enter the child beneficiary's actual date of birth — the person who may be at risk of aging out due to immigration processing delays.
Enter both the petition filing date and USCIS approval date. The difference in days between these is the "pending time" used in the CSPA formula.
Enter the first day of the month when a visa became available in the Final Action Dates chart of the Department of State Visa Bulletin.
The calculator applies the formula and shows CSPA age, pending days, and a clear verdict — Protected (under 21) or Aged Out (21 or over).
The Child Status Protection Act calculates a child's "protected age" by subtracting the number of days the petition was pending from the child's age on the date the immigrant visa became available. This effectively "freezes" the child's age for the duration the petition sat waiting for USCIS approval.
The underlying logic is straightforward: the child should not be penalized for time that was entirely outside their control — time during which USCIS was processing the petition. The CSPA subtracts that government-delay time from the child's age to produce a fairer "CSPA age."
If the resulting CSPA age is under 21, the child is CSPA-protected — they may still be eligible for the immigrant visa as a dependent child, provided they also meet the "sought to acquire" requirement within one year of visa availability.
Effective August 15, 2025, USCIS updated its policy to use only the Final Action Dates chart in the DOS Visa Bulletin to determine when a visa "becomes available" for CSPA purposes. This replaced the February 2023 policy which allowed use of either chart, creating inconsistency between US-based and overseas applicants.
If your case was filed before August 15, 2025, consult an immigration attorney about how the policy change may affect your CSPA calculation.
CSPA coverage varies by visa category. Understanding which category applies to your child's case is essential before using the calculator.
CSPA applies to children of US citizens and lawful permanent residents in the family preference categories. The petition pending time is subtracted from the child's age at visa availability.
CSPA protects derivative children of employment-based principal beneficiaries. Pending time is calculated from the I-140 filing date to approval date for the relevant petition.
CSPA applies to DV lottery winners' derivative children. The visa availability date for DV purposes is the first day USCIS can allocate a visa number based on the principal alien's rank number.
IR-2 visas have no waiting period, so a different CSPA provision applies — a child's age is frozen on the date the I-130 petition is filed, as long as it is filed before the child turns 21.
Children of LPR spouses with V nonimmigrant status may benefit from CSPA protections when they transition to immigrant visa processing in the family preference categories.
For I-485 adjustment of status applicants, the CSPA age is calculated based on the Final Action Dates chart (post-August 2025 policy). Filing within one year of visa availability satisfies the "sought to acquire" requirement.
Understanding the timeline helps families identify the critical dates needed for an accurate CSPA age calculation.
The sponsoring family member or employer files the immigration petition. This date starts the "pending time" clock used in the CSPA formula. Record this date precisely — it directly affects how much time is subtracted from the child's age.
USCIS sends the approval notice. This date ends the "pending time" clock. The number of calendar days between filing and approval is the pending time subtracted from the child's age in the CSPA formula.
For preference categories, the family waits for a visa number to become available in the Visa Bulletin. This waiting period can last years or even decades for some categories and countries of birth — the risk of aging out is highest here.
The first day of the Visa Bulletin month when the priority date becomes current on the Final Action Dates chart. This is the date used to calculate the child's age under the CSPA formula (post-August 2025 policy).
Our calculator applies the formula here. If the CSPA age is under 21, the child is protected. If 21 or over, the child has aged out and may no longer qualify as a dependent child under that petition.
A CSPA-protected child must "seek to acquire" lawful permanent resident status within one year of the visa availability date. This typically means filing I-485 or submitting a consular immigrant visa application within that window.
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The Child Status Protection Act (CSPA) is a US federal law enacted by Congress in 2002 to protect certain immigrant children from losing their eligibility for a visa solely because the government's own processing delays caused them to turn 21 years old — a situation known as "aging out." Under the Immigration and Nationality Act (INA), an unmarried person under 21 is defined as a "child" for immigration purposes. Once a child turns 21, they generally no longer qualify for a visa as a dependent child under their parent's petition.
The CSPA addresses this unfairness by providing a method to calculate an adjusted "CSPA age" that subtracts the time the petition spent waiting for USCIS approval. This effectively freezes the child's age during the period of government processing, giving families credit for time lost to bureaucratic delays.
Children are most at risk of aging out when their parents are waiting for visas in oversubscribed family or employment preference categories — particularly for nationals of countries like India, China, Mexico, and the Philippines, where wait times can span many years or even decades. A child who was, for example, 12 years old when the petition was filed may be well over 21 by the time a visa number becomes available.
Being CSPA-protected (having a CSPA age under 21) is not sufficient on its own. The child must also "seek to acquire" lawful permanent resident status within one year of the date the immigrant visa became available. This requirement is typically satisfied by filing Form I-485 (Application to Register Permanent Residence or Adjust Status) within the one-year window, or by submitting an immigrant visa application at a US consulate abroad. Failure to meet the one-year deadline can result in loss of CSPA protection, though USCIS may excuse extraordinary circumstances.
Visa retrogression occurs when a visa that was previously available moves backward and becomes unavailable again due to annual visa allocation limits. If retrogression occurs before the child applies for a green card, the one-year "sought to acquire" window resets when the visa becomes available again. The CSPA age is recalculated based on the new visa availability date — which may produce a different result than the original calculation.
The calculator displays the child's age at visa availability, total pending days, and the resulting CSPA age — along with a clear indication of whether the child is likely CSPA-protected or has aged out.
⚠️ Legal Disclaimer: This CSPA age calculator is provided as a free educational tool only. It does not constitute legal advice. Immigration law is complex, fact-specific, and subject to change. CSPA eligibility depends on many factors beyond the age calculation alone. Always consult a qualified, licensed US immigration attorney for advice specific to your situation before filing any application or taking any immigration action.
Clear, accurate answers to the most common questions about CSPA age calculation and the Child Status Protection Act.
Enter the four key dates above and get an instant CSPA verdict — Protected or Aged Out. Free, accurate, no signup required.