(redirected from Adoption Taxpayer Identification Number)
ATINAdoption Taxpayer Identification Number (US IRS)
ATINAccess to Information Network (Philippines)
ATINAcute Tubulointerstitial Nephritis
ATINATEC Test Integration Network
ATINAlien Taxpayer Identification Number
ATINApplication, Transport, Internetwork, Network (TCP Model Layers )
References in periodicals archive ?
An ATIN is an Adoption Taxpayer Identification Number issued by the IRS as a temporary taxpayer identification number for the child in a domestic adoption where the adopting taxpayers do not have and/or are unable to obtain the child's Social Security Number (SSN).