New York Application Directing Correction of SSN(s)/Other ITIN(s) — Attorneys (12/1/15) is a document issued by the New York State Department of Taxation and Finance (MYSELF) to allow attorneys to correct Social Security Numbers (SSNs) and Individual Taxpayer Identification Numbers (ITIN's). This document is used by attorneys to apply for and obtain corrections of SSNs and ITIN's on behalf of their clients. It can be used to correct errors made by the, errors made when entering the SSN or ITIN on a client’s tax return, and errors made by the client themselves. The two types of New York Application Directing Correction of SSN(s)/Other ITIN(s) — Attorneys (12/1/15) are Form DTF-650 and Form DTF-651. Form DTF-650 is the application to correct an SSN and Form DTF-651 is the application to correct an ITIN. Both forms must be completed and submitted to the.