Navigating the complexities of evidence requirements under the Central Goods and Services Tax Act, 2017
The goods and services tax (GST) regime, implemented from July 1, 2017, has fundamentally transformed India's indirect tax framework. With this transformation came sophisticated evidence requirements that directly impact business operations, compliance obligations, and dispute resolution processes.

Current Evidence Framework:
Section 145 of the CGST Act specifically addresses admissibility of electronic documents, microfilms, and computer printouts
The Bharatiya Sakshya Adhiniyam, 2023 has replaced the Indian Evidence Act, 1872, introducing new provisions for electronic and digital records
Section 155 places the burden of proof on taxpayers claiming input tax credit (ITC)
GST authorities possess extensive powers under Sections 67-71 for search, seizure, audit, and inspection
Key Evidence Categories Required:
Business registration documents and constitutional papers
Tax invoices, credit/debit notes, and bills of supply
Books of account and financial records
E-way bills and transportation documents
Bank statements and payment records
Import/export documentation
Electronic records and digital communications
Section 145 - Admissibility of Electronic Documents:
Microfilms, facsimile copies, computer printouts, and electronically stored information
shall be deemed documents and admissible as evidence without further proof of the original
Section 155 - Burden of Proof for ITC:
Where any person claims input tax credit eligibility, the burden of proving such claim
shall lie on such person
New Definition of Evidence (Section 2(e)):
Electronic statements now constitute oral evidence
Electronic and digital records are documentary evidence
Expanded scope includes emails, server logs, smartphone data, and website information
Electronic or digital records shall have the same legal effect, validity and enforceability
as other documents, subject to certification requirements
Section 63(4) - Certification Requirements: Electronic records must be accompanied by certificates from persons in charge of computer systems or communication devices, verified by experts.
Section 67 - Search and Seizure Powers:
Joint Commissioner level authorization required
Goods, documents, and "things" can be seized
Electronic devices and digital storage media included
Section 70 - Summoning Powers:
Officers can summon persons to give evidence or produce documents
Civil court procedures apply
Penalty up to ₹25,000 for non-compliance
1. Compliance Risk Matrix

High-Risk Areas:
ITC Claims: Complete documentary trail required from supplier verification to physical receipt
Digital Records: New certification requirements may invalidate previously acceptable electronic evidence
Cross-Border Transactions: Enhanced documentation for import/export claims
Service Transactions: Proving physical execution and delivery of services
2. Technology and Evidence Management

Critical Challenges:
Legacy Systems: Older ERP systems may not generate BSA 2023-compliant certificates
Cloud Storage: Questions around jurisdiction and certification for cloud-based records
Mobile Communications: WhatsApp messages, emails now explicitly recognized as evidence
Data Integrity: Enhanced requirements for proving authenticity of electronic records
3. Audit and Investigation Preparedness

Key Considerations:
15-day notice required for audits, but search/seizure can be immediate
Document retention mandatory for 72 months (6 years)
Cross-examination rights limited but critical for disputed evidence
Expert opinions increasingly important for technical matters
4. Financial Impact Assessment

Potential Exposures:
Penalty Structure: 10% of tax or ₹10,000 (whichever higher) for non-fraudulent cases
Criminal Liability: Imprisonment possible for tax evasion exceeding ₹1 crore
Interest Costs: Accumulating during prolonged disputes
Opportunity Costs: Management time and legal expenses
Evidence Policy Review
Audit current document retention policies against 72-month requirement
Identify gaps in electronic record certification processes
Update internal audit checklists to include BSA 2023 requirements
Technology Assessment
Evaluate ERP systems for BSA 2023 compliance capabilities
Implement automatic certificate generation for electronic records
Establish secure digital storage protocols with proper access controls
Team Training
Brief finance teams on new evidence standards
Train procurement teams on supplier verification requirements
Update legal team on cross-examination rights and procedures
Supplier Due Diligence Enhancement
Implement real-time GST portal verification before order placement
Establish documentary requirements for physical delivery verification
Create supplier audit protocols for ITC eligibility
Internal Controls Strengthening
Develop standard operating procedures for evidence collection
Implement segregation of duties for document verification
Create exception reporting for incomplete documentation
Risk Management Framework
Establish early warning systems for compliance gaps
Create rapid response protocols for notice/summons receipt
Develop contingency plans for search/seizure scenarios
Digital Transformation
Migrate to fully integrated, audit-trail enabled systems
Implement blockchain or similar technologies for immutable records
Develop AI-powered compliance monitoring tools
Professional Development
Engage specialized GST litigation counsel
Establish relationships with forensic accountants
Create internal expertise in electronic evidence management
Strategic Compliance
Conduct annual GST audits by external experts
Implement proactive disclosure policies for identified errors
Develop industry best practice benchmarking
Critical Success Factors
Executive Sponsorship: C-suite commitment to compliance culture and resource allocation
Cross-functional Coordination: Integration between legal, finance, IT, and operations teams
Continuous Monitoring: Real-time compliance dashboards and exception reporting
Professional Expertise: Access to specialised legal and technical expertise
Documentation Excellence: Maintaining evidence standards that exceed minimum requirements

The evolving evidence landscape in GST proceedings demands proactive adaptation of business processes, technology systems, and compliance frameworks. Organisations that treat evidence management as a strategic capability rather than a compliance burden will be better positioned to navigate disputes and minimise tax risks.
Powers of GST Officers | GST Audit Procedure | Audit U/S 65(3) (GST ADT-01) | Matching Reversal and Reclaim of ITC | GST Audit Checklist


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