GSTR-9 Annual Return FY 2025-26: Key Deadlines & Common Mistakes to Avoid
With the GSTR-9 filing season approaching, businesses must reconcile their GST data carefully. We break down the key deadlines, reconciliation steps, and the most common errors that invite scrutiny from the department.
What is GSTR-9?
GSTR-9 is the annual return that every regular GST-registered taxpayer must file, consolidating all monthly or quarterly returns filed during the financial year. It reconciles inward supplies, outward supplies, ITC availed, and tax paid — making it the single most important document that the GST department uses to assess compliance posture.
For FY 2025-26, GSTR-9 is mandatory for taxpayers with aggregate annual turnover exceeding ₹2 crore. Taxpayers below this threshold may file voluntarily.
Key Deadlines for FY 2025-26
- GSTR-9 (Annual Return): 31 December 2026 — standard deadline unless extended
- GSTR-9C (Self-Certified Reconciliation): Same as GSTR-9; mandatory for turnover above ₹5 crore
- Amendments via GSTR-1A: Must be completed before filing the annual return
- ITC reversal (if any): Should be completed in GSTR-3B for September 2026 at the latest
Missing the GSTR-9 deadline attracts a late fee of ₹200 per day (₹100 CGST + ₹100 SGST), capped at 0.25% of annual turnover in the state.
Common Mistakes That Invite Scrutiny
1. Mismatch Between GSTR-1 and GSTR-3B
One of the most common errors is reporting higher output tax in GSTR-1 (invoice-level data) than in GSTR-3B (tax payment return). The department's portal flags these mismatches automatically. Reconcile both returns before filing GSTR-9.
2. Excess ITC Claimed vs. GSTR-2B
ITC claimed in GSTR-3B must match the auto-populated GSTR-2B (supplier-filed data). Excess ITC not reflected in GSTR-2B is recoverable by the department with interest at 24% per annum.
3. Non-Reporting of RCM Transactions
Reverse Charge Mechanism (RCM) supplies — from unregistered vendors, import of services, or specified categories — must be declared in GSTR-9. Many businesses skip these, which creates liability exposure during assessment.
4. Incorrect HSN Summary
GSTR-9 requires HSN-wise summary of outward supplies. Errors in HSN codes, taxable value, or rate of tax in this section are increasingly being used as audit triggers.
Reconciliation Tips Before Filing
- Match Books of Accounts → GSTR-1 → GSTR-3B for each month; resolve all variances before proceeding
- Download and verify GSTR-2B for every month; ensure ITC is claimed only on matched invoices
- Check for exempt, nil-rated, and non-GST supplies — these must be correctly reported in Table 5 of GSTR-9
- Reconcile e-way bill data with outward supplies declared; mismatches are flagged by GSTN analytics
- Verify that all advances received and adjusted are reflected correctly to avoid double taxation
Our Advice
Start your GSTR-9 reconciliation at least 60–90 days before the deadline. Late reconciliation leads to rushed amendments, missed corrections, and — in worst cases — interest and penalty exposure. Our team at G. S. SONPAL & ASSOCIATES handles end-to-end GSTR-9 preparation, reconciliation, and filing for businesses across Gujarat. Reach out early — the filing queue fills up fast in November and December.
CA. Urvashi Nathwani
G. S. SONPAL & ASSOCIATES · Chartered Accountants
Ready to Take Your Finances to the Next Level?
Drop us a line anytime — our team is ready to understand your needs and provide expert guidance. First consultation is always complimentary.