Real-time gross settlement (RTGS) vs Instant payments: what is the difference?
RTGS systems settle large-value payments one by one in central bank money, usually within set operating hours. Instant payment systems credit the payee within seconds, around the clock, and are built for everyday payments. Many instant systems still settle their participants' positions through the RTGS.
| Real-time gross settlement (RTGS) | Instant payments | |
|---|---|---|
| In one line | Real-time gross settlement (RTGS) is the settlement of payments individually, transaction by transaction, as they are processed. Central bank RTGS systems such as Fedwire, CHAPS and T2 settle large-value payments in central bank money with immediate finality. | Instant payments are account-to-account transfers that credit the payee within seconds and run around the clock, every day of the year. The BIS describes fast payments as real-time or near real-time transfers between end users' accounts, as close to 24/7 as possible. |
| Read more | Real-time gross settlement (RTGS) | Instant payments |
How they work together
A payout partner's instant payouts run all weekend, but the RTGS top-up that refills it may wait for Monday. Prefunding has to cover the gap.
Where Polynopsis fits
Polynopsis shows each corridor's balance against the next payout batch, so a top-up can be sent before the RTGS cut-off that decides whether it lands today.
Instant payout rails spend a prefund around the clock. Polynopsis keeps the position live so a partner balance running low at the weekend is flagged before payouts fail.
Frequently asked questions
What is the difference between real-time gross settlement (rtgs) and instant payments?
RTGS systems settle large-value payments one by one in central bank money, usually within set operating hours. Instant payment systems credit the payee within seconds, around the clock, and are built for everyday payments. Many instant systems still settle their participants' positions through the RTGS.
What is Real-time gross settlement (RTGS)?
Real-time gross settlement (RTGS) is the settlement of payments individually, transaction by transaction, as they are processed. Central bank RTGS systems such as Fedwire, CHAPS and T2 settle large-value payments in central bank money with immediate finality.
What is Instant payments?
Instant payments are account-to-account transfers that credit the payee within seconds and run around the clock, every day of the year. The BIS describes fast payments as real-time or near real-time transfers between end users' accounts, as close to 24/7 as possible.
Sources
- A glossary of terms used in payments and settlement systems · Committee on Payments and Market Infrastructures, Bank for International Settlements
- Fedwire Funds Services · Board of Governors of the Federal Reserve System
- CHAPS · Bank of England
- T2 · European Central Bank
- Payment System Report, December 2025 · Reserve Bank of India
- Fast payments: design and adoption, BIS Quarterly Review, March 2024 · Bank for International Settlements
- Federal Reserve action to expand Fedwire Funds Service and National Settlement Service operating hours (Federal Register notice, October 2025) · Board of Governors of the Federal Reserve System
- Regulation (EU) 2024/886 on instant credit transfers in euro · EUR-Lex, Publications Office of the European Union
- Real Time Payments · The Clearing House
- Customer credit transfer and liquidity management transfer network limit increases (12 November 2025) · Federal Reserve Financial Services
- TARGET Instant Payment Settlement (TIPS) · European Central Bank
Know where all your money is.
Polynopsis gives cross-border payment teams one live position across every bank, payout partner, exchange and wallet, including money in flight, and warns before a corridor runs dry.
About Polynopsis
Polynopsis is liquidity management software for cross-border payment companies. The name joins poly, many, and synopsis, a seeing together: one live view of money spread across many banks, payout partners, exchanges and stablecoin wallets, including money in flight, with a warning before any corridor runs dry.
Why it is called Polynopsis · About Polynopsis · Glossary · Corridor runway calculator