- GSTR-1: Outward Supplies Return, monthly or quarterly, provides invoice-level details of sales.
- GSTR-3B: Summary Return, monthly or quarterly, consolidates total sales, ITC claims, and tax payments.
- Mismatches occur due to discrepancies in invoice reporting, ITC mismatch due to vendor non-compliance, timing differences in reporting, incorrect debit and credit note adjustments, and rounding-off errors.
- To correct mismatches, identify the mismatch, use automated reconciliation tools, and file amendments.
- To avoid mismatches, automate invoice processing and validation, utilize real-time invoice validation tools, integrate ERP with GST platform, leverage APIs for credit and debit note processing, and implement automated tax computation systems.
Source: taxilla.com
Note that this post was (partially) written with the help of AI. It is always useful to review the original source material, and where needed to obtain (local) advice from a specialist.
