GSTR-9 & GSTR-9C Reporting Mandates (Notification No. 05/2026): Complete Compliance Guide for CAs & CFOs
Statutory Framework & Legal Background
Notification No. 05/2026 – Central Tax, issued under the provisions of the Central Goods and Services Tax (CGST) Act, 2017, restructuring the annual filing architecture for registered taxpayers. The statutory mandate amends the reporting requirements under Section 44 of the CGST Act, read with Rule 80 of the CGST Rules, 2017, specifying precise mandatory and optional tables for GSTR-9 (Annual Return) and GSTR-9C (Reconciliation Statement) from FY 2025-26 onwards.
Under Section 44 of the CGST Act, 2017, every registered person except an Input Service Distributor, a non-resident taxable person, a person required to deduct tax at source under section 51, a person required to collect tax at source under section 52, and a casual taxable person, is required to furnish an annual return electronically. Non-compliance or incorrect reporting of mandatory tables triggers stringent penal consequences. Specifically, failure to furnish the annual return within the stipulated due date attracts a late fee under Section 47(2) amounting to INR 100 per day under CGST and INR 100 per day under SGST/UTGST, subject to a maximum ceiling of 0.25% of the turnover in the state or union territory. Furthermore, inaccurate disclosure of outward supplies or ineligible Input Tax Credit (ITC) utilization identified during GSTR-9C reconciliation attracts recovery proceedings under Section 73 or Section 74, alongside interest under Section 50 at 18% per annum and penalty provisions under Section 125 for general contraventions.
Scope of Expansion & Applicability Matrix
The revised reporting structure under Notification No. 05/2026 bifurcates annual disclosures into mandatory tables where data reporting is non-negotiable and optional tables where relaxation has been granted to ease compliance burdens for specific categories of taxpayers. The applicability matrix spans across various taxpayer segments based on aggregate turnover thresholds defined under the GST regime.
- Aggregate Turnover up to INR 2 Crore: Filing GSTR-9 remains optional as per Section 44 proviso, though businesses opting to file must adhere to the notified table structures.
- Aggregate Turnover between INR 2 Crore and INR 5 Crore: Filing GSTR-9 is mandatory, while furnishing GSTR-9C reconciliation statement certified by a Chartered Accountant or Cost Accountant remains optional.
- Aggregate Turnover exceeding INR 5 Crore: Filing both GSTR-9 and GSTR-9C is strictly mandatory, with rigorous reconciliation required between audited financial statements and annual return data.
- SEZ Units and Developers: Must meticulously report zero-rated supplies and export transactions under the designated tables without availing the optional relaxations.
Step-by-Step Operational & ERP Workflow
To align enterprise resource planning (ERP) systems with the Notification No. 05/2026 mandates for FY 2025-26, finance teams must execute a structured operational workflow:
- Data Extraction & GSTR-2B Reconciliation: Extract line-item purchase and sales registers from the ERP (SAP, Oracle, Tally, etc.) and match them with auto-populated GSTR-2B and GSTR-1 statements for the entire financial year.
- Bifurcation of Mandatory vs. Optional Fields: Configure ERP reporting filters to segregate mandatory tables (such as Tables 4A-4G, 5A-5C1, and Table 6 series for ITC) from tables designated as optional for the specific turnover bracket.
- Reconciliation of Outward Supplies (Table 4 & 5): Reconcile taxable outward supplies, advances, debit/credit notes, and exempt/nil-rated/non-GST supplies. Ensure non-GST supplies (Table 5F) are strictly isolated from exempted and nil-rated supplies (Table 5D).
- ITC Verification and Reversal Mapping (Table 6 & 7): Map all ITC claimed, reversed (Rule 37, 39, 42, 43), and ineligible credit identified during internal audits to prevent mismatch notices under Section 61.
- CA Certification and Filing (GSTR-9C): Generate the JSON offline utility for GSTR-9C, reconcile audited financial statement turnovers with GSTR-9 figures, secure digital signature verification (DSC), and file through the GST portal.
Comparative Analysis of Reporting Standards
The table below outlines the shift in compliance requirements between previous practice and the new mandate under Notification No. 05/2026:
| Compliance Parameter | Previous Practice (FY 2024-25 & Earlier) | New Mandate (FY 2025-26 Onwards - Notif. 05/2026) |
|---|---|---|
| Non-GST Supply Reporting (Table 5F) | Often clubbed with exempt supplies or reported optionally in aggregate blocks. | Strictly mandatory separate reporting required distinct from exempted and nil-rated supplies. |
| ITC Reversal Tracking (Table 7) | Generalized reporting of reversals under consolidated heads. | Granular table-wise segregation mandatory for Rule 37, 42, and 43 reversals. |
| Reconciliation Tolerance Limits | Informal acceptance of minor variances between financial books and GSTR-9. | Zero tolerance; mandatory reconciliation of turnover and tax liability with explicit reasons for variances. |
| CA Certification Scope (GSTR-9C) | Standard certification of reconciliation without specific table validation checks. | Enhanced audit verification covering mandatory table disclosures and explicit certification of book-to-return reconciliation. |
Action Plan Checklist for Finance & Audit Teams
Finance controllers and tax auditors must execute the following 5-point action plan to ensure seamless compliance with Notification No. 05/2026:
- ✔ Update ERP Master Data: Reconfigure accounting software to capture mandatory table parameters for outward supplies, RCM, and ITC segregations effective 1 April 2025.
- ✔ Conduct Mid-Year Mock Audits: Perform quarterly internal reviews of GSTR-1 and GSTR-3B filings against financial ledgers to eliminate year-end reconciliation discrepancies.
- ✔ Verify RCM and Exemption Classifications: Audit all reverse charge liabilities and ensure non-GST supply streams are correctly segregated from exempt categories.
- ✔ Implement ITC Reversal Protocols: Ensure precise tracking of blocked credits under Section 17(5) and proportional reversals under Rules 42 and 43 within the designated reporting tables.
- ✔ Engage Tax Professionals Early: Coordinate with statutory auditors and tax consultants well ahead of the statutory due date to finalize GSTR-9C reconciliations without last-minute system bottlenecks.