Domestic
PAYMENTS SIGNAL · REFERENCE CARDAustralia NPP — real-time settlement via the Fast Settlement Service
An Australian dollar payment sent day or night using a PayID instead of a BSB and account number, where the Fast Settlement Service settles each transaction one by one in real time across accounts at the Reserve Bank of Australia.
Actors
- Riya (payer)customer
- Bank Alfa (payer bank)bank
- NPP / Fast Settlement Service (RBA)infrastructure
- Nordbank (payee bank)bank
- Arjun (payee)customer
Messages
No standard message — a book / internal transfer.
The sequence
| # | Step | Route | Kind |
|---|---|---|---|
| 1 | Instruction (PayID) — Riya pays Arjun using his PayID | Riya → Bank Alfa | message |
| 2 | Resolve PayID — NPP resolves the PayID to Arjun's account | Bank Alfa → NPP / FSS | message |
| 3 | DR Riya — Bank Alfa debits Riya | Bank Alfa | posting |
| 4 | FSS settlement — The Fast Settlement Service settles this payment in real time | Bank Alfa → Nordbank | settlement |
| 5 | CR Arjun — Nordbank credits Arjun, who can spend at once | Nordbank | posting |
Exception rails
| Rail | Trigger | Where the money ends up | Next action |
|---|---|---|---|
| PayID does not resolve | The PayID Riya entered is not registered to any account — perhaps a mistyped mobile number — so NPP cannot find an account to pay. | Never left Riya's account — no debit was booked because the PayID did not resolve. · No settlement occurred; the FSS only settles a payment with a valid, resolved destination. | Riya — Riya checks Arjun's PayID (his mobile number) and re-enters the payment. |