Immediate Payment Service

IMPSACTIVE

Operator: National Payments Corporation of India (NPCI)

Overseer: Reserve Bank of India (RBI)

Legal basis: Payment and Settlement Systems Act, 2007; RBI authorization for NPCI to operate payment systems

Launched: Nov 22, 2010

500+ member banks

Participants

Jun 1, 2025 · NPCI

Quick reference: View technical card →

Executive Summary

IMPS is India's 24/7 instant interbank electronic fund transfer service operated by NPCI, launched in 2010 as one of the world's earliest instant payment systems. It served as the technological foundation upon which UPI was later built, and continues to operate as an independent channel for instant transfers using account numbers, MMID (Mobile Money Identifier), or Aadhaar numbers. While UPI has overtaken IMPS in volume, IMPS remains a significant payment rail processing hundreds of millions of transactions monthly.

How It Works

Settlement Model

Deferred net settlement. NPCI calculates multilateral net positions across participating banks and settlement is effected through participants' accounts at the Reserve Bank of India.

Message Standard

Proprietary NPCI messaging format transmitted via National Financial Switch (NFS) infrastructure

Max Transaction

INR 500,000 per transaction

Clearing Mechanism

Multilateral net settlement — NPCI nets all IMPS transactions across participants and settles net positions through the RBI.

Settlement Cycle

Multiple settlement windows throughout the day. Transactions are processed in real time but settlement of net positions occurs in batches through RBI accounts.

Message Flow

The remitting bank submits a payment instruction to NPCI's IMPS switch using the beneficiary's account number/IFSC, MMID, or Aadhaar number. NPCI validates the transaction, routes it to the beneficiary's bank, which confirms the credit. NPCI sends confirmation to the remitting bank. The end-to-end process completes in seconds.

Typical Use Cases

Instant person-to-person transfers, merchant payments, mobile banking transfers, ATM-initiated fund transfers, Aadhaar-linked transfers

Key Data

Participants

500+ member banks

As of Jun 1, 2025 · NPCI

Participants & Access

Membership Requirements

Open to banks licensed by the RBI. Member banks must integrate with NPCI's IMPS platform, meet technical and operational requirements, and comply with IMPS Operating Guidelines. Both mobile banking and internet banking channels supported.

Governance & Risk

Governance Model

Operated by NPCI, a not-for-profit company promoted by the Reserve Bank of India and the Indian Banks' Association. Governed by NPCI's IMPS Operating Guidelines. Subject to RBI regulatory oversight under the Payment and Settlement Systems Act, 2007.

Concentration Risk

Moderate. Operational concentration on NPCI's switch infrastructure. IMPS faces declining relative importance as UPI absorbs a growing share of instant payment volume.

Resilience & Business Continuity

NPCI operates redundant infrastructure for the IMPS switch. The system has maintained 24/7 availability since launch in 2010, demonstrating long-term operational resilience.

Dispute Resolution

Governed by NPCI's IMPS Dispute Management System. Failed transactions are auto-reversed. Customer complaints can be escalated through the bank's internal mechanism and ultimately to the RBI Ombudsman Scheme for Digital Transactions.

Pricing

IMPS transaction charges are set by individual banks within RBI guidelines. Charges vary by transaction amount and channel.

Transaction fee: Varies by bank; typically INR 2.50–25 depending on transaction amount and channel

Source: NPCI / individual member banks

Connectivity

settles via

RTGS India

IMPS net settlement positions are settled through the RBI RTGS system

Peer Comparison

IMPS was one of the world's first 24/7 instant payment systems, predating UK Faster Payments' 24/7 expansion and most European instant payment systems. It served as the proving ground for the technology that became UPI. Compared to FPS UK, IMPS has broader bank participation but lower per-transaction limits. IMPS is increasingly complementary to UPI, serving channels and use cases where UPI's VPA-based addressing is not available.

Faster Payments

FPS · United Kingdom · Pay.UK

Compare in detail →

Timeline

Stored date Aug 31, 2026; precision not reviewed

IMPS average daily transactions decreased to ~11.61M/day (August 2026)

IMPS average daily transactions changed from ~11.75M/day (July 2026) to ~11.61M/day (August 2026). Recorded by ClearingPost on 2026-09-13.

Source

Stored date Aug 31, 2026; precision not reviewed

IMPS average daily value decreased to ~₹22,701 crore/day (~$2.7B) (August 2026)

IMPS average daily value changed from ~₹22,958 crore/day (~$2.7B) (July 2026) to ~₹22,701 crore/day (~$2.7B) (August 2026). Recorded by ClearingPost on 2026-09-13.

Source

Stored date Aug 24, 2026; precision not reviewed

IMPS participant count increased to 979 members (banks & PPIs, Aug 2026)

IMPS participant count changed from 978 members (banks & PPIs, Jun 2026) to 979 members (banks & PPIs, Aug 2026). Recorded by ClearingPost on 2026-08-24.

Source

Stored date Aug 24, 2026; precision not reviewed

IMPS participant count recorded

IMPS participant count recorded as 979 members (banks & PPIs) (as of 2026-08-24). First structured value captured by ClearingPost on 2026-08-24.

Source

Stored date Jul 31, 2026; precision not reviewed

IMPS average daily transactions increased to ~11.75M/day (July 2026)

IMPS average daily transactions changed from ~11.58M/day (June 2026) to ~11.75M/day (July 2026). Recorded by ClearingPost on 2026-08-03.

Source

Stored date Jul 31, 2026; precision not reviewed

IMPS average daily value increased to ~₹22,958 crore/day (~$2.7B) (July 2026)

IMPS average daily value changed from ~₹22,551 crore/day (~$2.7B) (June 2026) to ~₹22,958 crore/day (~$2.7B) (July 2026). Recorded by ClearingPost on 2026-08-03.

Source

Intelligence (4)

NewsSep 5, 2026Headline names “IMPS”

IMPS Value Rises 18 Percent to Rs 7.04 Lakh Crore in August

NPCI's monthly release put the older instant rail at 11.61 million transactions a day last month. Average daily value on IMPS came to Rs 22,701 crore.

External source · IANS

AnalysisMay 28, 2026Headline names “IMPS”

IMPS Grows 13 Percent as Transaction Size Runs 15 Times UPI Average

IMPS counts 969 participating institutions including banks and prepaid payment instrument issuers as of March 2026. The standard IMPS per-transaction ceiling stands at Rs 5 lakh, five times UPI's Rs 1 lakh P2P cap.

Operator source · NPCI

NewsApr 17, 2026Headline names “IMPS”

RBI Proposes One-Hour Delay on UPI and IMPS Transfers Above ₹10,000 to Combat Fraud