Internal Revenue Service presents Individual Taxpayer Identification Number Acceptance Agents Training Wage and Investment ITIN Policy Section Atlanta, GA 1 Rev. 10-2019 ITIN Acceptance Agent Training Welcome to Individual Taxpayer Identification Number (ITIN) Acceptance Agents Training 2 ITIN Acceptance Agent Training Effective May 1, 2010, all new and renewing applicants for the ITIN Acceptance Agent Program are required by the Internal Revenue Service (IRS) to