The Institute of Cost Accountants of India (ICMAI), a statutory body under an Act of Parliament functioning under the Ministry of Corporate Affairs, has released the “Handbook on Invoice Management System under GST” (Edition December 2025) with the objective of strengthening digital compliance, enhancing invoice-level governance, and improving the integrity of Input Tax Credit (ITC) under the Goods and Services Tax (GST) regime.
The publication has been developed by the Tax Research Department of ICMAI in the context of the introduction of the Invoice Management System (IMS), a landmark reform in India’s GST compliance architecture. IMS represents a significant shift from passive reconciliation to active, taxpayer-driven invoice validation, enabling recipients to accept, reject or keep invoices pending before claiming ITC.
Since the implementation of GST, invoice matching and ITC verification have remained central to ensuring transparency, preventing revenue leakage, and strengthening trust in the tax system. With increasing reliance on technology, data analytics, e-invoicing and automated return systems, effective invoice management has become a critical compliance and governance function for businesses and tax professionals alike.
The handbook provides a comprehensive and practitioner-oriented guide to the conceptual framework, architecture, functional mechanics and legal foundations of the Invoice Management System. It covers key aspects such as IMS workflows, document eligibility and ineligibility rules, interaction with GSTR-2B and GSTR-3B, supplier-recipient communication mechanisms, audit readiness, internal controls, ERP integration, data governance, and sectoral case studies. The publication also offers practical insights into risk management, dispute mitigation and litigation preparedness in the IMS era.
By combining statutory interpretation with operational guidance, the handbook aims to bridge the gap between policy intent and ground-level execution. It is designed to serve as a ready reference for Cost and Management Accountants (CMAs), tax professionals, corporates, auditors, policymakers, academicians and students dealing with GST compliance and digital tax administration.
ICMAI reiterated its commitment to supporting the Government’s vision of a transparent, technology-driven and self-policing tax ecosystem. The release of this handbook is expected to contribute significantly to improving compliance discipline, strengthening ITC governance, and enhancing audit defensibility under GST, thereby supporting ease of doing business and sustainable tax administration in India.
The Handbook can be accessed at: https://a2ztaxcorp.net/wp-content/uploads/2026/01/Final_Invoice-Management-System-under-GST.pdf
