An Adoption Taxpayer Identification Number (ATIN) is A short lived nine-digit number issued from the IRS to people who are in the process of legally adopting a U.S. citizen or resident youngster but who can not get an SSN for that child in time for you to file their tax https://kameronuclk7.boyblogguide.com/32546227/tax-id-number-no-further-a-mystery