IMPS (Immediate Payment Service)
IMPSAn instant interbank funds-transfer service in India operated by NPCI, available 24×7×365, used for retail transfers up to ₹5 lakh that need to settle within seconds.
Immediate Payment Service (IMPS) is the instant retail rail operated by the National Payments Corporation of India (NPCI). Unlike NEFT, which batches transfers, IMPS settles each transaction within seconds via a pre-funded NPCI mechanism, then settles net interbank positions through deferred RBI cycles.
From a reconciliation viewpoint, IMPS sits between NEFT and RTGS. It is irrevocable like RTGS but uses NPCI references rather than RBI UTRs, which introduces a separate reference space. Bank statements typically show the IMPS reference number (RRN) alongside the UTR, and reconciliation against gateway settlement reports must handle both.
IMPS is the rail behind many wallet-to-bank transfers and small-value disbursements such as insurance claims, refunds, and gig-economy payouts. Its 24×7 availability means weekend and holiday reconciliation must include IMPS activity; a system that only ingests on banking days will systematically lag.