₹48 Lakh Customs Duty Refund: Recovering Overlooked IGST Credit on Imports

Background

A Pune-based electronics components distributor imports semiconductor components, passive components, and PCB assemblies from South Korea, Taiwan, and China. The company imports approximately 65–70 shipments per year across four Customs Commissionerates (Mumbai Air Cargo, Nhava Sheva, Delhi Air Freight, and Chennai Sea Port).

The company's imports were handled by three different customs brokers depending on the port. Each broker had the company's GSTIN on file — but in 2022, one of the brokers had inadvertently made a typographical error in the GSTIN on the client's import profile (one digit was transposed).

This went unnoticed for two and a half years.

Discovery

A junior accountant in the company's finance team, while preparing for GSTR-9 for FY 2023-24, noticed that the Table 8 breakdown of ITC from bills of entry was significantly lower than expected. She flagged it to the CFO.

Cogent was engaged to audit the import ITC discrepancy.

Investigation

Step 1: Bill of Entry vs GSTR-2B Reconciliation

We extracted:

• All import bills of entry (access from ICEGATE using the company's IEC number) for FY 2022-23 and FY 2023-24
• GSTR-2B imports section (Part C - IGST from ICEGATE integration) for the same periods

Findings:

But further back-testing revealed the error predated FY 2022-23. Investigation into prior periods showed:

• FY 2021-22: 102 BEs filed; 64 BEs in GSTR-2B; 38 missing → ₹17L IGST not credited

Total uncredited IGST: ₹48 lakh across 3 financial years.

Step 2: Root Cause Identification

Cross-referencing the missing bills with the customs broker records identified the root cause: the transposed GSTIN. Bills filed by the specific broker (handling the Nhava Sheva port shipments, which account for 65% of volume) had the incorrect GSTIN — so ICEGATE could not link them to the correct taxpayer's GSTR-2B.

The remaining 35% of bills (filed through the other two brokers) were correctly linked and appeared in GSTR-2B without issue.

Recovery Strategy

Step 1: Bill of Entry Amendment — Correcting the GSTIN

Under the Customs regulations, a BE can be amended to correct factual errors (including GSTIN) after assessment. We filed BE Amendment requests for all 140 affected BEs through the customs broker at Nhava Sheva.

The amendment application required:

• Original BE copies
• Evidence of correct GSTIN (GST registration certificate)
• Bank statement showing company's IEC
• CA certificate of factual error

The Deputising Commissioner of Customs at Nhava Sheva cleared the amendments in batches over 6 weeks.

Step 2: ICEGATE-GSTN Data Re-Push

Once BEs were amended, the ICEGATE portal automatically re-sends the corrected data to GSTN. For BEs amended before the 11th of a month, the corrected IGST credit appeared in the current month's GSTR-2B. For amendments after the 11th, it appeared in the following month.

This meant the credits appeared in batches across 3 GSTR-2B cycles (3 months).

Step 3: ITC Claim in GSTR-3B

As credits appeared in GSTR-2B Part C (imports), we claimed them in the corresponding GSTR-3B Table 4A(1) — ITC from imports. Since these were credits from prior years, we filed the claims in the current year's returns (within the eligible claim window).

For the FY 2021-22 credits (which exceeded the normal November 30, 2022 claim window), we filed a detailed GST adjudication application demonstrating that the non-appearance in GSTR-2B was due to a technical data linkage failure — not taxpayer lapse. The GST Commissioner accepted the application and allowed a one-time credit claim.

Outcome

Prevention Protocol (Implemented Going Forward)

1. Monthly BE-vs-GSTR2B reconciliation: Each month, the company's accounts team downloads GSTR-2B Part C and matches it against the IEC-based BE download from ICEGATE. Any gap triggers an immediate broker query.
2. GSTIN verification with each broker: GSTIN is verified in writing (email) with all three brokers at the start of each financial year.
3. Single customs broker coordinator: One contact person (internally) now manages all three brokers rather than each broker operating independently.
4. New-shipment GSTIN check: For any new port or courier shipment, GSTIN is validated against the GSTIN search on GST portal before the BE is filed.