Overview

In November 2022 Amazon expanded the Selling Partner API for the India marketplace by adding three GST‑specific reports that deliver transaction‑level inventory, sales, and refund data. The change is critical for sellers who depend on Amazon’s feeds for bookkeeping, tax filing, or financial reconciliation, because the new reports fill gaps that previously required manual extraction.

Key Points

• Three GST‑focused reports introduced — The API now offers a GST Merchant Stock Transfer Report, a GST Merchant Tax Invoice Report, and a GST Merchant Refund Report exclusively for India sellers.
• Line‑item granularity — Each file lists every SKU, quantity, unit price, tax amount, fulfillment‑center identifier, and other relevant fields, enabling exact GST calculations per transaction.
• Daily generation with sub‑24‑hour latency — Reports are compiled each day and become available through the standard “reports” endpoint, typically within 12‑24 hours after the covered period ends.
• No disruption to existing calls — The new report types are added to the catalogue without deprecating any current report endpoints, so legacy integrations continue to work unchanged.
• Compliance requirement — Indian GST law mandates invoice‑level documentation for stock movements and refunds; the three reports satisfy the statutory “invoice‑level” evidence needed for monthly GST returns.

How the New Tax Reports Work

1. Create report request — The seller’s system issues a POST /reports call, specifying one of the new reportType values (e.g., GET_GST_MERCHANT_STOCK_TRANSFER) and the desired start‑ and end‑dates.

   • Example: An ERP integration posts a request for the Stock Transfer Report covering 1 May 2023 to 31 May 2023 and receives a reportId such as RPT12345 in the response.

2. Amazon assembles data — Amazon’s backend pulls transaction records from the fulfillment network, matches each movement to the appropriate SKU, applies the GST rate based on the destination state, and formats the data into a CSV structure.