The Documentation Identication Number ( DIN ) system of Central Board of Direct Taxes (CBDT) has come into existence from today with the generation of about 17,500 communications with DIN on the very rst day. This pathbreaking DIN system has been created as per the direction of Finance Minister Ms. Nirmala Sitharaman and from now onwards every CBDT communication will have to have a documentation identication number. Revenue Secretary Dr Ajay Bhushan Pandey said, “From today, any communication from Income Tax Department without a computer-generated DIN, be it a notice, letter, order and summon or any other correspondence, would be treated as invalid and shall be non est in law or deemed to be as if it has never been issued. The DIN system would ensure greater accountability and transparency in tax administration.” “Now from today onwards, all such communications with DIN would be veriable on the e-ling portal and no communication would be issued manually without DIN except only if it is in the specied exceptional circumstances”, said Dr. Pandey. It would be pertinent to mention here that while specifying such exceptional circumstances the CBDT Circular related to DIN dated 14.08.2019 says that whenever any such manual communication would be issued, it would be necessarily required to specify reason of issuing such a communication without DIN along with the date of obtaining written approval of the Chief Commissioner/Director General of Income Tax in a particular format. Any communication which is not in conformity of with the prescribed guidelines shall be treated as invalid and non est in law. The CBDT has specied that any communication issued manually under exceptional circumstances would have to be uploaded and regularised on the system portal within 15 days of its issuance. The CBDT has also stated that all pending assessment proceedings, where notices were earlier issued manually, prior to the DIN related Circular dated 14.08.2019 coming into existence, all such cases would be identied and notices so sent would be uploaded on ITBA by the end of this month, i.e., by 31st Oct 2019. This is in pursuance of the directions by the Hon’ble Prime Minister in which he has asked the Department of Revenue to come up with specic measures which in some cases caused inconvenience to taxpayers sometime. However, with the present system of attaching a DIN to every notice or communication of CBDT would result in better services to taxpayers without any possible harassment.