Number: RL30323
Title: CONFIDENTIALITY OF THE TAXPAYER IDENTIFICATION NUMBER UNDER THE INTERNAL REVENUE CODE
Authors: Marie B. Morris, American Law Division 
Abstract: Section 6109 of the Internal Revenue Code makes an individual's Social Security number the individual's taxpayer identification number (TIN). The same section requires taxpayers to furnish their TINs to the Internal Revenue Service and to other persons whenever the Internal Revenue Service determines that securing the proper identification of the person is necessary. This report illustrates the wide variety of situations in which individuals are required by the Internal Revenue Code to furnish their taxpayer identification numbers, either to the IRS or to third parties.
Pages: 8
Date: Updated September 28, 1999