411 REFERENCE · Wiktionary
ATIN
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
atin atìn Atin
English
Noun
en adoption taxpayer identification number.
en The One, Big, Beautiful Bill https://waysandmeans.house.gov/wp-content/uploads/2025/05/The-One-Big-Beautiful-Bill-Section-by-Section.pdf 2025-05 43 w:United States House Committee on Ways & Means A TIN is a Social Security number (SSN), an individual taxpayer identification number (ITIN), or an adoption taxpayer identification number (ATIN). https://web.archive.org/web/20260921194135/https://waysandmeans.house.gov/wp-content/uploads/2025/05/The-One-Big-Beautiful-Bill-Section-by-Section.pdf 21 September 2026