NPP — New Payments Platform

Overview

The New Payments Platform (NPP) is Australia's real-time, data-rich payment infrastructure launched in February 2018. It enables near-instant payments 24/7/365 between accounts at participating Australian financial institutions.

• Operator: NPP Australia Limited (NPPA)
• Settlement: RBA Fast Settlement Service (FSS)
• Message Standard: ISO 20022 (MX format)
• Availability: 24/7/365

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NPP Key Features

Feature	Detail
Speed	Typically < 15 seconds end-to-end
Availability	24/7, 365 days/year
Data richness	Up to 280 characters of remittance data
PayID	Proxy addressing (phone, email, ABN, org ID)
Settlement	Real-time gross via RBA FSS
Amount limit	No mandated cap (FIs may set own limits)

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NPP Architecture

                        ┌─────────────────────────┐
                        │  NPP Australia (NPPA)   │
                        │  Basic Infrastructure   │
                        │  (BI) — ISO 20022 Hub   │
                        └────────────┬────────────┘
                                     │
              ┌──────────────────────┼──────────────────────┐
              │                      │                      │
     ┌────────▼──────────┐  ┌───────▼─────────┐  ┌────────▼──────────┐
     │    Bank A         │  │    Bank B        │  │    Bank C         │
     │  (Direct          │  │  (Direct         │  │  (Indirect via    │
     │   Participant)    │  │   Participant)   │  │   Bank A)         │
     └───────────────────┘  └─────────────────┘  └───────────────────┘
              │                                            
              ▼
     ┌───────────────────┐
     │ RBA Fast          │
     │ Settlement        │
     │ Service (FSS)     │
     └───────────────────┘

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NPP Message Flow (Credit Transfer)

Customer A                Bank A (Debtor)           Bank B (Creditor)
     │                         │                          │
     │── Initiate payment ────►│                          │
     │   (app/API/pain.001)    │                          │
     │                         │── Validate & screen      │
     │                         │── Debit account          │
     │                         │── Build pacs.008 ───────►│
     │                         │                          │── Validate
     │                         │                          │── Screen
     │                         │◄── pacs.002 ACK ─────────│
     │                         │                          │
     │                         │◄── RBA FSS Settlement ──►│
     │                         │    (simultaneous)        │
     │                         │                          │── Credit account
     │                         │                          │── camt.054 ──► Customer B
     │◄── Debit notification ──│
         (camt.054)

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NPP Overlay Services

Overlay services are products built on top of NPP infrastructure:

Osko (by BPAY)

• First NPP overlay service
• Consumer and business payments
• PayID-enabled
• Real-time credit transfers

PayTo (launched 2022)

• Agreement-based payments (replaces Direct Debit)
• Payer authorises a payment agreement stored at NPP
• Payee can initiate pull-based payments under the agreement
• Near-real-time, 24/7
• Replaces BECS Direct Debit for many use cases

PayTo Flow:
1. Biller creates Payment Agreement → sent to Payer's bank
2. Payer approves agreement (via banking app)
3. Biller initiates debit under agreement (any time)
4. Payer's bank validates agreement → credits biller

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PayID

PayID is a proxy addressing system on the NPP that maps a simple identifier to a BSB/account number.

PayID Type	Example
Phone number	0412 345 678
Email address	jane@example.com
ABN	12 345 678 901
Organisation ID	Assigned by NPPA

PayID Resolution Flow

Sender enters:  "jane@example.com"
                        │
                        ▼
              NPP PayID Directory
                        │
                        ▼
        Returns:  Jane Smith, BSB 062-000, Acct 12345678
                        │
                        ▼
         Sender confirms name match
                        │
                        ▼
              Payment proceeds

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NPP ISO 20022 Messages Used

Message	Purpose
pacs.008	Credit transfer instruction
pacs.002	Payment status report
pacs.004	Payment return
camt.054	Account notification
acmt.023	PayID registration
acmt.024	PayID lookup response

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NPP vs BECS Direct Entry

Feature	NPP	BECS/DE
Speed	< 15 seconds	Next business day
Hours	24/7/365	Business hours, cut-offs
Message format	ISO 20022 (MX)	Proprietary flat file
Remittance data	280 characters	Limited
PayID	✅	❌
Settlement	Real-time gross (RTGS-like)	Deferred net (DNS)

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NPP vs RTGS/HVCS

Feature	NPP	HVCS/RTGS
Target use	Retail/SME	High-value wholesale
Value limit	No mandated cap	Large (>$250K typical)
Customer visible	✅	Typically B2B only
Overlay services	✅ Osko, PayTo	❌

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NPP Participation

Type	Description
Connected Institution (CI)	Direct NPP participant with own connection to BI
Identified Institution (II)	Participates via a CI (sponsor); has own PayID space
Addressing Service Provider (ASP)	Manages PayID on behalf of others

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Java Spring Integration Notes

@Service
public class NppPaymentService {

    @Value("${npp.endpoint}")
    private String nppEndpoint;
    
    public NppResult submitPayment(PaymentOrder order) {
        // Build pacs.008
        Pacs008 pacs008 = pacs008Builder.build(order);
        
        // Validate against NPP-specific rules
        nppValidator.validate(pacs008);
        
        // Submit to NPP BI
        NppResponse response = nppClient.submit(pacs008);
        
        if (response.isAccepted()) {
            order.setStatus(PaymentStatus.SUBMITTED_TO_NPP);
            order.setNppTxId(response.getTransactionId());
        }
        
        return NppResult.from(response);
    }
    
    @Async
    public void resolvePayId(String payId) {
        PayIdLookupRequest request = new PayIdLookupRequest(payId);
        PayIdResponse response = nppClient.lookupPayId(request);
        // Cache and return account details
    }
}

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NPP Error Codes

Code	Meaning
AC01	Incorrect account number
AC03	Invalid creditor account number
NARR	Free text error narrative
FF01	Invalid file format
AM04	Insufficient funds
RR04	Regulatory reason (sanctions)

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Related Concepts

• pacs008.md — Core NPP payment message
• inbound.md — Receiving NPP payments
• outbound.md — Sending NPP payments
• clearing.md — NPP as clearing system
• settlement.md — RBA FSS real-time settlement
• onus.md — On-us vs NPP routing decision