ICMAI Releases Handbook on Invoice Management System (IMS) under GST

The Institute of Cost Accountants of India (ICMAI) has released the “Handbook on Invoice Management System under GST” (December 2025 Edition) to guide taxpayers through the new active invoice validation framework.

Key Highlights of the Handbook:

Active ITC Validation: Explains the shift from passive reconciliation to a system where recipients must actively accept, reject, or keep invoices pending to claim Input Tax Credit (ITC).
Comprehensive Workflow Guidance: Detailed insights into:
- IMS architecture and functional mechanics.
- Document eligibility and ineligibility rules.
- Interaction between IMS, GSTR-2B, and GSTR-3B.
- Supplier-recipient communication protocols.
Operational & Risk Management: Provides strategies for:
- ERP integration and data governance.
- Internal controls and audit readiness.
- Mitigating risks, disputes, and litigation in the IMS era.
Sectoral Insights: Includes case studies and practical examples tailored to various industries.

Objective and Audience:

The handbook is designed as a ready reference for Cost and Management Accountants (CMAs), tax professionals, and corporate compliance teams. Its goal is to strengthen digital compliance discipline and ensure the integrity of ITC governance under the maturing GST regime.

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