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Common GST Mistakes and How to Avoid Them

wpdev_rhm

Managing Partner

Since its implementation, the Goods and Services Tax (GST) has become one of the most important aspects of business compliance in India. While GST simplified the indirect tax system, it also introduced new responsibilities and challenges for businesses of all sizes.

Even small errors in GST compliance—whether in filing returns, claiming credits, or reporting transactions—can result in penalties, blocked input tax credits, or legal complications. Unfortunately, many businesses continue to repeat the same mistakes year after year.

In this article, we highlight the 5 most common GST mistakes businesses make in 2025 and share practical tips on how to avoid them.

1.Incorrect or Delayed GST Filing

One of the most frequent mistakes is missing GST filing deadlines or submitting incomplete information. Many businesses underestimate the importance of accurate and timely GST returns, which can result in penalties, late fees, and reputational damage.

How to Avoid:

  • Maintain a compliance calendar with reminders.
  • Automate filing processes with GST-enabled accounting software.
  • Seek professional help for accurate preparation.

2.Improper Input Tax Credit (ITC) Claims

Claiming ITC without proper reconciliation or on ineligible expenses is a serious compliance issue. Incorrect ITC claims often arise from unmatched invoices, vendor delays, or misinterpretation of GST rules.

Impact: Blocked credits can affect cash flow and may trigger notices from authorities.

3. Wrong HSN/SAC Code Classification

Applying incorrect HSN (Harmonized System of Nomenclature) or SAC (Services Accounting Code) is another widespread mistake. Wrong classification often results in wrong tax rates being applied, which may later attract penalties and interest.

How to Avoid:

  • Maintain an updated HSN/SAC code list for all products/services.
  • Consult a GST professional before finalizing classifications.
  • Stay updated on changes notified by the GST Council.

5.Lack of Professional Guidance

Many businesses, especially startups and SMEs, try to manage GST compliance internally without professional expertise. While this may save costs initially, it increases the risk of costly mistakes in the long run.

How to Avoid:

  • Maintain an updated HSN/SAC code list for all products/services.
  • Consult a GST professional before finalizing classifications.
  • Stay updated on changes notified by the GST Council.

Conclusion

GST compliance is not just about filing forms—it’s about ensuring accuracy, transparency, and efficiency in your financial reporting. By avoiding these common mistakes, businesses can reduce risks, save costs, and build stronger financial credibility.

At RHM Chartered Accountants, we specialize in GST advisory, filing, reconciliation, and litigation support. With our expertise, you can focus on running your business while we take care of compliance.