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Form 15100: Adoption Taxpayer Identification Number (ATIN) Extension Request
Treasury - Internal Revenue Service Form 15100 is an Adoption Taxpayer Identification Number (ATIN) Extension Request form filed by adoptive parents or agents. The form allows for a 1 year extension if needed.
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IRS Form 15100 - Adoption Taxpayer Identification Number (ATIN) Extension Request
Treasury - Internal Revenue Service Form 15100 is an Adoption Taxpayer Identification Number (ATIN) Extension Request form filed by adoptive parents or agents. The form allows for a 1 year extension if needed.
Risk Radar
Scan points- 1Ensure you correctly check the circumstance that applies (e.g., 'I need a 1 year extension') for the adoptee.
- 2Failing to list the correct Name and Taxpayer Identification Number of the adoptee.
- 3Not selecting an applicable circumstance (e.g., 'I need a 1 year extension').
- 4Omitting the required signatures or dates from the adoptive parents section.
- 5Providing incorrect contact information, such as the primary telephone number.
Plain English
This form tells the IRS that you need more time to get a Social Security number for someone who has been adopted. You use it when you already have an ATIN but cannot get the official SSN yet. Submitting this request extends your deadline to obtain that necessary identification number.
Submission Date
- Filing date: 2017-10-25 18:00:17
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use this form when an adoptive parent or agent needs to request an extension for an Adoption Taxpayer Identification Number (ATIN).
- Do not use Form 15100 if you are simply reporting that you received a Social Security Number, unless you also need the extension.
- Check Form 15100 itself when needing to formally request an ATIN extension.
Form selector
Use this form or another form?
Need to report SSN receipt
You are reporting the adoption status but not requesting a formal extension on this form.
✓ Check Form 15100
Need to confirm finality of adoption
The adoption is finalized and you need to document that fact alongside ATIN information.
✓ Check Form 15100
Enclosing documents from agency
You are submitting supporting paperwork along with the request for an extension.
✓ Check Form 15100
Deadline or filing window
The filing triggers an extension request, allowing for a 1 year extension if needed for the adoptee. The form itself does not state a specific due date, but it requests this one-year period of grace from the IRS.
Checklist
What you need before filling it out
Name of adoptee
Full name of the child being adopted · Form 15100 (lines under 'Name')
Social Security Number
The assigned SSN for the adoptee · Form 15100 (line next to 'I received a social security number...')
Extension Period
Requesting a 1 year extension · Form 15100 (line under 'I need a 1 year extension...')
Status of Adoption
Final, Pending, or Enclosing documents · Form 15100 (section header)
Mailing Address
Standard: Internal Revenue Service Stop 6182 Austin, TX 73301-0066 · Form 15100 (top of page)
Before you submit
- 1Write your new address if it differs from the mailing location.
- 2Complete all fields for the Name, Taxpayer Identification Number, and Address sections.
- 3Indicate which circumstance applies (SSN received, extension needed, etc.).
- 4If applicable, provide a reason for needing the ATIN extension.
- 5Check the status of your adoption (Final, Pending, or Enclosing documents).
- 6Print and type the Name of both adoptive parents where required.
- 7Date the signature lines immediately before signing.
How to file this form
- 1Complete all personal information sections on Form 15100 (Rev. 10-2017).
- 2Select and document the circumstance(s) that apply to your adoption request.
- 3Print, type, and then sign the required signature lines for the adoptive parents.
- 4Mail or fax the completed Form 15100 to Internal Revenue Service Stop 6182 Austin, TX 73301-0066 (or use the overnight option).
- 5Keep a copy of the signed and dated form for your records.
Known limitations
- 1The form allows for a 1 year extension specifically for an Adoption Taxpayer Identification Number (ATIN) Extension Request.
- 2A filer must indicate which specific circumstance applies, such as receiving an SSN or needing an extension, to utilize Form 15100.
- 3If the adoption is pending, the filer must select that status on Form 15100.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
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Fillable formOpen in Editor->The current edition of IRS Form 15100 is Revision 10-2017, dated October 2017. The source does not point to a specific page containing general updates or changes from previous revisions.
What changed or needs a fresh check
- Edition date — confirm October 2017 (Rev. 10-2017)
- Fee — Not stated in the official source
- Mailing address — confirm Standard: Internal Revenue Service Stop 6182 Austin, TX 73301-0066
- Signature — ensure both adoptive parents sign if applicable
- Form Number — verify Catalog Number is 69794D
Quick Facts
Downloads
After you file
- 1Retain a copy of the completed and signed Form 15100 for records.
- 2The form can be mailed or faxed to the Internal Revenue Service at Stop 6182, Austin, TX 73301-0066.
- 3If sending overnight, use the address: Internal Revenue Service, 3651 S. Interregional Hwy 35 Stop 6182, Austin, TX 78741.
- 4If questions arise after filing, contact the agency at (737) 800-5511.
Sources
- SRCForm 15100 (Rev. 10-2017) is titled Adoption Taxpayer Identification Number (ATIN) Extension Request [Form p.1].
- SRCThe form can be mailed to the Internal Revenue Service at Stop 6182, Austin, TX 73301-0066 [Form p.1].
- SRCOvernight delivery of Form 15100 should go to: Internal Revenue Service, 3651 S. Interregional Hwy 35 Stop 6182, Austin, TX 78741 [Form p.1].
- SRCThe fax number for the Internal Revenue Service is (855) 250-1731 [Form p.1].
- SRCQuestions about Form 15100 can be directed to the agency at (737) 800-5511 [Form p.1].
- SRCFilers must provide their name, taxpayer identification number, and address on Form 15100 [Form p.1].
Common confusion points
Where do I send Form 15100?
The form can be sent via standard mail or overnight delivery to different addresses.
→ Check the mailing address listed on the form for your preferred method.
What if my adoption is final, but I still need this extension request?
Select 'My adoption is final' under Status of your adoption and complete the rest of Form 15100.
→ Ensure you select the correct status before filling out other fields.
Do I have to provide a reason for needing the extension?
Yes, the form requires you to indicate the circumstances that apply, which implies providing a reason for the need.
→ Review the checkboxes under 'Indicate which of the following circumstances apply to you'.
What if my adoption is pending and I don't have an ATIN yet?
Select 'My adoption is pending' as the status and ensure you complete the other required sections.
→ Confirm that you fill in the Name, Taxpayer Identification Number, and Address fields.
Can I use this form even if I already got a Social Security Number (SSN)?
Yes; check the box indicating 'I received a social security number for' and write the assigned SSN.
→ This indicates the reason for filing Form 15100.
Workflow map
Related forms and next steps
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⚠ If something goes wrong
- Not stated in the official source — verify on the agency site
Questions about IRS Form 15100
What is IRS Form 15100 used for?
This form tells the IRS that you need more time to get a Social Security number for someone who has been adopted. You use it when you already have an ATIN but cannot get the official SSN yet. Submitting this request extends your deadline to obtain that necessary identification number.
Who must file IRS Form 15100?
Adoptive parents or agents must file IRS Form 15100, depending on their specific situation regarding the adoptee's identification status.
What information does IRS Form 15100 require?
The form collects personal information such as the Name and Taxpayer Identification Number of the adoptee. It also requires indicating which circumstance applies (e.g., 'I need a 1 year extension for...'), along with details like the adoption status.
Where do I file IRS Form 15100?
The form can be mailed to the Internal Revenue Service at Stop 6182 Austin, TX 73301-0066. It can also be faxed or sent overnight via USPS.
How do I complete IRS Form 15100?
First, complete all sections detailing the adopter's and adoptee's information. Next, select the applicable circumstances from the provided list on Form 15100. Finally, the adoptive parents must sign and date the form to finalize it before mailing or faxing.
What happens if IRS Form 15100 is filed incorrectly?
Filing this request allows for a 1 year extension regarding obtaining a social security number for the adoptee, preventing issues with tax filing deadlines.
Where do I send Form 15100?
The form can be sent via standard mail or overnight delivery to different addresses. Check the mailing address listed on the form for your preferred method.
What if my adoption is final, but I still need this extension request?
Select 'My adoption is final' under Status of your adoption and complete the rest of Form 15100. Ensure you select the correct status before filling out other fields.
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