National and regional payment systems
A tour of the systems countries run to clear and settle payments — US ACH and RTP, Canada's Lynx, China's CIPS, Hong Kong's CHATS, India's UPI, Australia's NPP, Europe's T2.
L0 Explain simply
Every country builds its own set of roads for money. The names differ — one place calls its instant service UPI, another calls it the New Payments Platform — but the shapes repeat. There is almost always a fast lane for a few very large, urgent interbank payments; a broad, cheap batch road that carries payroll and bills overnight; and, increasingly, a road that never closes and moves small payments in seconds. Once you have learned one country's set — what settles instantly and finally, what waits and nets, what runs around the clock — you can walk into another country's and recognise the same three shapes wearing local names. This topic is that walking tour: it lines up the major national and regional systems so the patterns, not the acronyms, are what you remember.
L1 Core concepts
Sort any country's systems along two lines and most of the map falls into place. First, value and urgency: a high-value real-time gross settlement (RTGS) system settles large interbank payments one at a time with finality, while a bulk system such as an Automated Clearing House (ACH) collects low-value payments and settles the net difference later. Second, availability: an instant or real-time-payments service runs continuously and pays the beneficiary within seconds. In the United States that is Fedwire (RTGS), ACH under Nacha rules, and both RTP and FedNow for instant. Canada runs Lynx as its RTGS. China runs domestic clearing (CDFCPS) and the cross-border CIPS for renminbi. Hong Kong's CHATS settles several currencies. India runs IMPS and the UPI overlay. Australia's New Payments Platform is instant with distributed clearing. The euro area's T2 is the RTGS, with TIPS for instant.
L2 Practitioner view
In practice a bank chooses a rail by currency, value, urgency, and reachability, and the same choice recurs everywhere. Send a large, time-critical interbank payment and you use the domestic RTGS — Fedwire, Lynx, CHAPS, or T2 — settling in central-bank money with no interbank credit exposure. Send bulk payroll and you use the ACH-style batch system, cheaper but settling on a deferred net basis through a service such as the National Settlement Service. Send a small consumer payment that must arrive now and you use the instant service — RTP, FedNow, TIPS, IMPS or UPI, the New Payments Platform. Cross-border adds a currency and a corridor: China's CIPS clears renminbi internationally, and Hong Kong's CHATS runs US-dollar and euro settlement inside an Asian time zone. The operator and calendar change with each system, but the decision a practitioner makes is the same shape.
L3 Technical details
The architectures reward a closer look because they differ in instructive ways. Canada's Lynx offers both an urgent gross mode and a liquidity-saving mechanism that offsets queued payments, so a bank settles large flows with less balance tied up. Australia's New Payments Platform uses distributed clearing: banks exchange ISO 20022 messages directly with each other while the Fast Settlement Service settles each payment in central-bank money — a contrast to the central-switch design of older systems. India layers the UPI overlay on the instant IMPS rails, adding simple addressing without rebuilding settlement. The euro area's 2023 consolidation put T2, T2S securities settlement, and TIPS behind one gateway (ESMIG) with central liquidity management (CLM) above, so a bank steers intraday liquidity deliberately across services. Each design trades liquidity efficiency, resilience, and complexity differently, but all settle finally in central-bank money.
L4 Standards & sources
Two public sources anchor the patterns here, and beyond them each operator is the authority for its own system. The Bank for International Settlements' work on fast payments describes the common characteristics of instant retail services — continuous operation, immediate availability to the payee, and settlement arrangements that support around-the-clock finality — which is why services as far apart as FedNow, TIPS, IMPS, UPI, and the New Payments Platform share a family resemblance. The Federal Reserve's payment-system material describes Fedwire as the US real-time gross settlement service and the ACH network's batch, deferred-net design, illustrating the high-value-versus-bulk split that recurs in every country. Two cautions: operating hours, thresholds, participation tiers, and message standards are set by each operator and change over time; and one label can hide several relationships, since a bank may reach a system directly or through a sponsor. Confirm specifics against the operator whose system you are studying.
Sources & standards2
- Market practice
Fast payments - enhancing the speed and availability of retail payments ↗ — CPMI, Bank for International Settlements · Characteristics of fast (instant) payment services across jurisdictions
Predates several major instant payment launches; this site uses it for concepts, not current statistics.
- Official requirement
Fedwire Funds Service ↗ — Federal Reserve Financial Services · Fedwire real-time gross settlement and the ACH network
The Fedwire Funds Service completed its ISO 20022 implementation on 14 July 2025.
SEE THE PAYMENT MOVE
Read the steps as text
- 02ProcessingBank Alfa checks the payment in real timeBank Alfa (sending bank)
Bank Alfa validates the account details, confirms Riya has the funds, screens for sanctions, and checks the amount against the FPS single-payment limit and its own limits — all in seconds, because the customer is waiting.
Screening checkpoint: Real-time transaction screening — Near-real-time rails force screening to be fast and automated — there is no overnight batch window to absorb the delay.
- 03PostingBank Alfa debits RiyaBank Alfa (sending bank)
Bank Alfa reduces Riya's balance by GBP 500.00 on its own books. The money has left Riya, but Arjun does not have it yet and the banks have not settled — those are separate steps.
- DR Riya's current account at Bank Alfa — GBP 500.00
- 06PostingNordbank validates and credits Arjun within secondsNordbank (receiving bank)
Nordbank checks the beneficiary account, screens the payment, and credits Arjun on its own books — all within seconds of Riya pressing send. Nordbank now owes this money and will recover it from Bank Alfa at settlement.
- CR Arjun's current account at Nordbank — GBP 500.00
- 07ProcessingArjun can spend the money immediatelyNordbank (receiving bank) → Arjun (payee)
Arjun sees GBP 500.00 in his account and can spend it straight away, even though the banks have not yet settled between themselves. This gap — payee paid now, banks settled later — is the exposure Nordbank carries.
- 08SettlementLater, the banks settle their net positions at the Bank of EnglandFaster Payments (Pay.UK) → Bank of England (settlement)
On a defined settlement cycle — after Arjun already has the money — Faster Payments calculates each bank's net position and the banks settle those net amounts in central bank money across their Bank of England settlement accounts. This is deferred net settlement, not payment-by-payment RTGS.
FPS clears in real time but settles on a deferred, netted basis. Only one net figure per bank per cycle moves at the Bank of England — not GBP 500.00 on its own.
- DR Bank Alfa net position at the Bank of England — GBP 500.00 (as part of the net cycle)
- CR Nordbank net position at the Bank of England — GBP 500.00 (as part of the net cycle)
Read the steps as text
- 02ProcessingBank Alfa checks its master account and screensBank Alfa (sending bank)
Bank Alfa validates the payment, screens it for sanctions in real time, and confirms it holds enough prefunded balance in its Federal Reserve master account to cover the outgoing amount. On an instant rail these checks must finish in seconds.
Screening checkpoint: Real-time outbound screening — An instant payment settles with finality and cannot be recalled, so screening happens before the payment is submitted — there is no batch window to catch it later.
- 05SettlementFedNow settles the payment individually and finallyBank Alfa (sending bank) → Nordbank (receiving bank)
On the positive answer, the Federal Reserve debits Bank Alfa's master account and credits Nordbank's master account for this one payment, in central-bank money. Settlement is immediate, gross (one payment at a time, no netting), and irrevocable.
- DR Bank Alfa's master account at the Federal Reserve — USD 300.00
- CR Nordbank's master account at the Federal Reserve — USD 300.00
- 06PostingBank Alfa debits Riya's accountBank Alfa (sending bank)
With the interbank leg settled in central-bank money, Bank Alfa books the final debit against Riya's account. Because her bank had prefunded the master account, there was no credit risk in getting here.
- DR Riya's account at Bank Alfa — USD 300.00
- 07PostingArjun is credited and can spend at onceNordbank (receiving bank)
Because the settlement across the master accounts is already final, Nordbank credits Arjun immediately and he can use the money within seconds — even on a holiday, unlike a batch ACH transfer that would settle on a later business day.
- CR Arjun's account at Nordbank — USD 300.00
Read the steps as text
- 02ProcessingRTGS checks Bank Alfa's settlement balanceRTGS (Reserve Bank of India)
The RTGS system checks that Bank Alfa's settlement account at the Reserve Bank holds enough funds to cover the payment. An RTGS system will not create money it does not have.
- 03SettlementThe RBI settles the payment in real timeBank Alfa (remitting bank) → Nordbank (beneficiary bank)
The Reserve Bank of India debits Bank Alfa's account and credits Nordbank's account, transaction by transaction, in the books of the central bank. There is no netting: each payment settles on its own, and settlement is final and irrevocable the instant it happens.
- DR Bank Alfa's settlement account at the Reserve Bank of India — INR 5,00,000.00
- CR Nordbank's settlement account at the Reserve Bank of India — INR 5,00,000.00
- 05PostingNordbank credits the beneficiaryNordbank (beneficiary bank)
Because the interbank leg already settled with finality in the Reserve Bank's books, Nordbank can credit its customer — Riya's business — without waiting for anything else.
- CR Beneficiary's account at Nordbank — INR 5,00,000.00
Read the steps as text
- 03PostingBank Alfa debits RiyaBank Alfa (payer PSP)
Bank Alfa books the debit on Riya's account on its own ledger, so the funds are committed before the payment is submitted to the central bank's system.
- DR Riya's account at Bank Alfa — BRL 150.00
- 04SettlementThe SPI settles the payment in central bank moneyBank Alfa (payer PSP) → Nordbank (payee PSP)
The payment is submitted to the SPI (Instant Payment System), an RTGS operated by the BCB. It settles this one transfer individually, one-to-one, in central bank money — final and irrevocable, in about three seconds on average.
- DR Bank Alfa settlement account at the BCB — BRL 150.00
- CR Nordbank settlement account at the BCB — BRL 150.00
- 05PostingNordbank credits ArjunNordbank (payee PSP)
Once settlement is final, Nordbank books the credit to Arjun's account. He can spend the money immediately, at any time of day.
- CR Arjun's account at Nordbank — BRL 150.00
Sources for this topic4
- Market practice
Fast payments - enhancing the speed and availability of retail payments ↗ — CPMI, Bank for International Settlements · Characteristics of fast (instant) payment services
Predates several major instant payment launches; this site uses it for concepts, not current statistics.
- Official requirement
Fedwire Funds Service ↗ — Federal Reserve Financial Services · Fedwire Funds Service and the ACH network
The Fedwire Funds Service completed its ISO 20022 implementation on 14 July 2025.
- Market practice
Principles for financial market infrastructures ↗ — CPMI and IOSCO (Bank for International Settlements) · Principles for financial market infrastructures; settlement in central bank money
Published by the CPSS (now CPMI) and IOSCO; contains 24 principles plus responsibilities for authorities. This site uses it only for high-level concepts such as settlement finality.
- Simplified educational illustration
Payments Signal editorial teaching models — Payments Signal
What this simplifies: The three-shapes framing (high-value, bulk, instant) compresses each country's arrangements to a pattern; real systems differ in operating hours, thresholds, participation tiers, settlement models, and message standards, all operator-specific and changing over time. Named systems are described at a conceptual level from public material.
Used wherever diagrams, scenarios, figures, or example values are didactic constructions rather than sourced facts; every such use carries a simplifications disclosure. All people, companies, banks, and list entries in examples are fictional.
Deepest material on this page: L4 — Standards & sources. Where a topic stops short of implementation depth, that is a deliberate coverage decision, not an oversight — see coverage.