Running a business is demanding enough without the added stress of unexpected tax notices. With the Goods and Services Tax (GST) department heavily relying on data analytics and automated systems, minor discrepancies that once flew under the radar are now top triggers for scrutiny notices under Section 61 (Form ASMT-10).
Many business owners unknowingly make compliance errors that lead to hefty penalties and interest. To protect your bottom line and keep the taxman at bay, here are the top 10 GST mistakes you need to stop making today.
10 GST Mistakes That Invite Penalties
1. Failing to Reverse ITC for Vendor Non-Payment (180 Days)
Under Section 16(2), if you fail to pay your supplier within 180 days from the invoice date, you are legally mandated to reverse the Input Tax Credit (ITC) you claimed on that invoice, along with interest. You can reclaim this ITC only after the actual payment is made. Auditors strictly check accounts payable aging reports during scrutiny to catch this oversight.
2. Ignoring ITC Reversal on Exempt Supplies
If your business deals in both taxable and exempt supplies, you cannot claim full ITC. Rules 42 & 43 require a proportionate reversal of ITC on inputs, input services, and capital goods. Missing this calculation is a common audit trap that invites immediate interest and penalties.
3. Not Reporting Miscellaneous Incomes
Your primary sales aren’t the only taxable outward supplies. Revenue streams like scrap sales, penalties collected from vendors/customers, forex gains, and commission income often attract GST. A mismatch between the income reported in your Income Tax Return (ITR) or financial books and your GST returns is a surefire way to trigger notices under Section 61 or 65.
4. Overlooking GST on Advances Received
Did you know GST is payable on advances received for services (and certain notified goods)? Many businesses forget to report these advance payments in their GSTR-1 and GSTR-3B. This creates glaring discrepancies between your bank statements, financial books, and GST returns.
5. Ignoring Reverse Charge Mechanism (RCM) on Common Expenses
RCM shifts the liability to pay tax from the supplier to the recipient. It applies to common expenses like freight/Goods Transport Agency (GTA), advocate fees, import of services, rent to unregistered persons, and director remuneration. Non-payment under RCM means a complete loss of ITC, plus penal provisions under Section 9(3) and 9(4).
6. Incorrect Valuation in Related Party Transactions
Transactions with sister concerns, branch offices, or director entities must be valued correctly. Under Rule 28, these related-party transactions must be valued at the open market value or 90% of the resale value. Processing these at “Nil consideration” or severely underpricing them will attract GST liability on the deemed value.
7. Assuming No Penalty for Late GSTR-1 Filing
Because the GST portal often doesn’t automatically compute late fees for GSTR-1 (unlike 3B), many taxpayers assume there’s no penalty. This is a costly misconception. The department can and will issue notices under Section 46 or levy penalties under Section 122 for delayed filing—especially if it causes a mismatch with e-Invoices or your GSTR-3B.
8. Claiming ITC on Ineligible Goods/Services (Blocked Credits)
Not everything purchased for your business is eligible for ITC. Section 17(5) outlines blocked credits, which include expenses like motor vehicles, club memberships, free gifts, food/beverages, and personal expenses. System reconciliations easily flag these wrongful claims, leading to reversals with interest.
9. GSTR-1 and GSTR-3B Mismatches
This is the most common trigger. In recent financial years, a massive percentage of enterprises received notices simply because their GSTR-1 sales report didn’t match their GSTR-3B payment document.
- Red Flag 1: ITC claimed in 3B exceeds GSTR-2B/2A.
- Red Flag 2: Outward tax paid in 3B is lower than what is declared in GSTR-1.
10. Claiming ITC Without GSTR-2B Reconciliation
Your Input Tax Credit must match the details your suppliers upload, as reflected in your GSTR-2B. Even timing mismatches—where a supplier delays their filing—will automatically trigger audit flags. Claiming ITC from a supplier whose registration has been canceled is another major red flag the system catches instantly.
How the GST Scrutiny Process Actually Works
If the GST portal’s automated system detects any of the discrepancies above, the department will initiate scrutiny. Here is how it unfolds:
The Process: The department issues Form GST ASMT-10 under Section 61, highlighting the exact discrepancies in your returns. You are legally required to reply using Form GST ASMT-11 within 30 days.
The Risk: Submitting a vague reply, failing to provide proper reconciliation data, or ignoring the notice altogether will inevitably lead to a formal demand for tax, interest, and penalties under Section 73 or 74.
Protect Your Business Today
GST compliance is no longer just about filing returns on time; it’s about pinpoint accuracy and continuous reconciliation.
If you’re dealing with backlogs, unsure about your ITC claims, or have already received an ASMT-10 notice, you don’t have to navigate it alone. Our team of GST experts specializes in comprehensive GST health checks, seamless monthly reconciliations, and professional notice management.
Don’t wait for an automated notice to find the holes in your accounting.
Let us ensure your business stays 100% compliant and penalty-free!