Helper only — not tax advice. Review every figure with your CA before filing. Your files are read inside this browser tab and are never uploaded.
1. Your details
Sales in your own state get CGST + SGST; other states get IGST.
2. Add marketplace reports
Use the tax reports: Meesho TCS sales and sales-return reports, Flipkart sales report, Amazon MTR (B2C). Check each file's column matches below.
3. Marketplace GSTINs (Table 14)
Table 14 lists your sales by each marketplace's GSTIN in your state. Copy it from the GST portal: Services → Ledgers → Electronic Cash Ledger → TCS/TDS credit received, or from the marketplace's TCS certificate.
GSTR-1 Table 7 — B2C (others), by place of supply and rate
GSTR-1 Table 12 — HSN summary, B2C tab
GSTR-1 Table 14(a) — supplies through e-commerce operators
Before using the JSON file: GSTN does not publish an official GSTR-1 JSON schema. This file follows the GST Offline Tool's known layout (b2cs, hsn_b2c, supeco). Table 13 (documents issued) is not filled — add your invoice series in the portal. Verify it with your CA or the offline tool before uploading.