5 Common GST Compliance Mistakes Small Businesses Make

GST compliance has matured, but small businesses still face penalties from avoidable errors. Here are five mistakes we encounter most often during GST health checks.

First, filing GSTR-1 and GSTR-3B with mismatched invoice values. Even minor discrepancies trigger notices and block input tax credit. Reconcile before every filing deadline.

Second, claiming ITC on ineligible expenses—motor vehicles for personal use, food and beverages, club memberships, and goods used for personal consumption are common problem areas.

Third, incorrect HSN or SAC codes and tax rates. Rate changes and classification updates happen frequently; outdated codes lead to short-payment notices.

Fourth, ignoring reverse charge mechanism (RCM) obligations on imports of services, GTA services, and notified categories. RCM liabilities must be self-assessed and paid in cash.

Fifth, missing annual return (GSTR-9) and reconciliation statement (GSTR-9C) deadlines. Late filing attracts penalties and complicates subsequent year ITC claims. Set calendar reminders or outsource compliance to avoid last-minute rushes.