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Official form guide
IRS Form W-7A is used to apply for an IRS adoption taxpayer identification number (ATIN) for a child placed in a pending legal adoption. The form must be completed at least 4 to 8 weeks before the ATIN is needed.
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IRS Form W-7A is used to apply for an IRS adoption taxpayer identification number (ATIN) for a child placed in a pending legal adoption. The form must be completed at least 4 to 8 weeks before the ATIN is needed.
Plain English
This form allows you to request a special tax ID number from the IRS for a child who has been placed with you through an authorized agency but does not have a Social Security Number yet. You use this when you can't get the child's SSN in time to file your taxes, and the child is a U.S. citizen or resident alien.
Submission Date
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Adoption not final, but you are eligible to claim the child as a dependent
Use this form because you cannot obtain the child’s SSN yet, but you need an ATIN.
✓ Confirm your eligibility to claim the child as a dependent.
Child is a U.S. citizen or resident alien and has an existing SSN
Use Form W-7A only if you cannot obtain the SSN, otherwise use Form W-7.
✓ Verify that the child meets the criteria for needing an ATIN.
Not stated in the official source (verify on the agency site)
Adopting parent(s) does not have an SSN but has an ITIN assigned by the IRS
This is a specific detail about parent status, which may require checking Form W-7A instructions.
✓ Ensure you enter the correct ITIN for the parent.
Not stated in the official source (verify on the agency site)
You changed your name after filing your last tax return due to marriage or divorce
You must report this change to the SSA before filing Form W-7A to prevent delays.
✓ Confirm that you have notified the local SSA office.
Not stated in the official source (verify on the agency site)
The filing trigger is when you need an ATIN; complete Form W-7A at least 4 to 8 weeks prior. If your SSN application is denied by the SSA, you must contact the IRS to request an extension or reactivation of the ATIN.
Checklist
Line 1a/1b (Parent Info)
Your name and SSN / Other parent’s name and SSN · Form W-7A
Line 2 (Address)
Street address, city/town, state, ZIP code · Form W-7A
Line 3a/3b (Child's Name)
Adoptive name (as on tax return) / Birth name (if known) · Form W-7A
Line 4 (DOB/Sex)
Child’s date of birth and sex · Form W-7A
Attachments
Signed and dated documentation proving placement by authorized agency · Instructions p.1
Field map
Personal Info
2 items
Your legal name and current mailing address.
Your taxpayer identification number — must match IRS records.
Filing Status
1 items
Single, Married Filing Jointly, or Head of Household (for withholding purposes).
Dependents
1 items
Number of qualifying children and other dependents.
Adjustments
1 items
Additional income not from jobs or adjustments to withholding.
Withholding
1 items
Additional amount you want withheld from each paycheck.
Certification
1 items
Your tax entity type: Individual, Corporation, Partnership, etc.
Signatures
1 items
Sign and date to certify under penalty of perjury.
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Fillable formOpen in Editor->The current edition is Revision October 2017 (Rev.). The instructions direct users to IRS.gov/FormW7A for the latest information regarding Form W-7A.
Quick Facts
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Who should file Form W-7A?
A filer must complete Form W-7A if they have a child in their home placed for legal adoption by an authorized placement agency and cannot obtain the child’s existing SSN despite reasonable attempts.
→ Confirm all criteria listed on Instructions p.1 are met.
What is the difference between using Form W-7A vs. Form W-7?
Use Form W-7A to apply for an ATIN when a child cannot get an SSN in time; use Form W-7 if the child isn't a U.S. citizen or resident alien (Instructions p.1).
→ Check the child's citizenship/residency status first.
When must I file Form W-7A?
The form must be completed at least 4 to 8 weeks before the ATIN is required (Instructions p.1).
→ Note that this timeline is a general guideline; check specific deadlines on your tax return instructions.
What happens if my SSN application gets denied by the SSA?
Contact the IRS, and when requesting an extension or reactivation of the ATIN, include the SSA’s denial letter or a written explanation (Instructions p.1).
→ Do not just wait; take action immediately upon receiving the denial notice.
What documentation must I attach to Form W-7A?
Signed and dated documentation proving the child was placed with the filer for legal adoption by an authorized placement agency is required (Instructions p.1).
→ Ensure the document specifies 'legal adoption' and names the 'authorized placement agency'.
Can I use the ATIN on my tax return if it’s only temporary?
Yes, you may be able to use an ATIN to claim a dependency exemption, credit for child and dependent care expenses, adoption credit, or child tax credit (Instructions p.1).
→ Remember that the ATIN cannot be used to claim the earned income credit (EIC).
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⚠ If something goes wrong
This form allows you to request a special tax ID number from the IRS for a child who has been placed with you through an authorized agency but does not have a Social Security Number yet. You use this when you can't get the child's SSN in time to file your taxes, and the child is a U.S. citizen or resident alien.
Form W-7A must be filed by an adoptive parent if they have a child living with them who was placed for legal adoption by an authorized placement agency and they cannot obtain the child’s existing SSN after reasonable attempts.
The form collects details such as the child's adoptive name (Line 3a), birth date/sex (Line 4), the placing agency's name and address (Line 5), and the parent(s)' current living address (Line 2).
You must complete Form W-7A at least 4 to 8 weeks before you will need an ATIN. If the SSA denies your SSN application, contact the IRS to request an extension or reactivation of the ATIN.
Mail the completed Form W-7A to the Department of the Treasury Internal Revenue Service at Stop 6182, Austin, TX 73301-0066. An address change requires filing Form 8822 first.
First, complete all fields, including entering your address on Line 2 and the child's details (Lines 3a/b, 4, 5). Next, attach signed and dated documentation proving the legal adoption placement. Finally, the adoptive parent(s) must sign and date the application.
If you do not file Form W-7A, you will not be issued an ATIN; this information is required to ensure compliance and allow the IRS to collect the correct tax amount.
A filer must complete Form W-7A if they have a child in their home placed for legal adoption by an authorized placement agency and cannot obtain the child’s existing SSN despite reasonable attempts. Confirm all criteria listed on Instructions p.1 are met.
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