Home › IRS › Forms › Form 15100
Form 15100: Adoption Taxpayer Identification Number (ATIN) Extension Request
- Product number
- Form 15100
- Title
- Adoption Taxpayer Identification Number (ATIN) Extension Request
- Type
- Forms
- Issuing body
- Internal Revenue Service (irs.gov)
- Revision (per IRS index)
- Oct 2017
The number, title, and revision date above are reproduced verbatim from the
official IRS
index (captured July 2026). Newer revisions may exist — check irs.gov. This page adds
no instructions or commentary. Not tax or legal advice.