GST payment reconciliation emphasizes CPIN/CIN identifiers to link taxpayer challans with bank and RBI records for reliable accounting.

Reconciliation of GST receipts centralizes taxpayer-generated electronic challans on GSTN, producing a unique CPIN until banks report payment and issue a CIN (CPIN plus bank code). This identifier chain prevents re-digitization, preserves original challan data, and enables agencies to append their own identifiers as records move through the workflow. GSTN anchors information flow; RBI aggregates funds and bank information and issues e-scrolls reflecting actual credits. CIN and RBI e-scrolls are recommended as the operative keys for accounting, reconciliation and discrepancy correction because they evidence receipt and credit to government accounts.

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