Section 142(1) of the Income Tax Act empowers the Assessing Officer to issue notices to taxpayers in certain situations to obtain more information or clarification before completing the tax assessment. This blog provides a comprehensive understanding of Section 142(1), including when the AO can issue a notice, the information that can be sought, the consequences of non-compliance, and the steps taxpayers should take to respond effectively. It also highlights the safeguards in place to prevent misuse and ensure fairness in the tax assessment process. By understanding their rights and obligations under Section 142(1), taxpayers can navigate the tax assessment process more effectively and avoid potential penalties.