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What is GSTR-9C?
GSTR-9C is the Reconciliation Statement filed by GST taxpayers with aggregate turnover above ₹5 crore. It reconciles:
- Turnover declared in GST returns (GSTR-9) with turnover as per audited Annual Financial Statements
- Tax paid as per GST returns with tax liability as per books
- ITC claimed with ITC available as per books
- Differences with reasons (justified or unjustified)
Major changes from FY 2020-21: GSTR-9C is now SELF-CERTIFIED by the taxpayer, not CA/CMA audited (as was earlier required under Section 35(5)).
Applicability threshold
- Aggregate turnover > ₹5 crore in any FY — GSTR-9C mandatory for that FY
- Below ₹5 cr — Not required
- If turnover crosses ₹5 cr threshold during the year — applicable from that FY
- Exemption: Same exemptions as GSTR-9 (composition, casual, ISD, etc.)
'Aggregate turnover' is PAN-level (combined across all GSTINs), not state-wise.
Key reconciliations required
Part II — Reconciliation of Turnover:
- Gross turnover as per audited financial statements
- Add: Unbilled revenue (if recognised in AS-9 but not invoiced)
- Less: Unadjusted advances and excise duty
- = Adjusted turnover
- Reconcile to turnover declared in GSTR-9
Part III — Reconciliation of Tax Paid:
- Tax liability as per books
- Add/Less: Differences (RCM tax, ITC reversed, etc.)
- Reconcile to tax declared in GSTR-9
Part IV — Reconciliation of ITC:
- ITC as per books
- Less: Blocked ITC under Section 17(5)
- Reconcile to ITC in GSTR-9
Due date and penalty
Due date: 31 December of next FY (same as GSTR-9)
For FY 2025-26: Due 31 December 2026.
Late filing fees: Same as GSTR-9 (₹200/day capped at 0.5% turnover). Plus increased risk of departmental scrutiny.
Practical reconciliation tips
- Start early — Reconciliation takes 1-2 months for medium-sized businesses. Don't wait till December.
- Tally accounting software with GST portal — Use software's GST reports vs GST portal downloads.
- Identify timing differences — Sales invoiced in March but GST paid in April (next FY). Document properly.
- RCM transactions — Ensure all are reported. RCM is a common reconciliation gap.
- Credit notes — Ensure correct year and tax adjustments.
- Consult CA for complex items — Even though self-certified, CA review catches errors. Cost ₹15,000-50,000 for review.