Real-Time Payments, or RTP, refers to payment systems that process and settle transactions within seconds, around the clock, every day of the year including weekends and holidays. Unlike ACH, which processes in batches with settlement occurring hours or days later, real-time payment systems provide immediate fund availability to the recipient and irrevocable settlement finality at the moment of transfer.
In the United States, the primary real-time payment rail is the RTP network operated by The Clearing House, which launched in 2017 and is available to financial institutions across the country. The Federal Reserve launched its own real-time payment service, FedNow, in 2023, providing an additional option for financial institutions to access real-time payment capabilities.
Real-time payments are credit push transactions, meaning the sender initiates the payment and pushes funds to the recipient rather than the recipient pulling funds from the sender’s account. This structure eliminates return risk, since funds cannot be recalled once settled, which distinguishes RTP from ACH debit transactions that can be returned after settlement.
Diving Deeper into Real-Time Payments
Real-time payments represent a fundamental shift in the architecture of money movement. The batch processing model that has dominated bank-to-bank payments since the introduction of ACH in the 1970s was designed around the operational constraints of that era — overnight processing windows, physical file exchange, and business-hour settlement cycles. Real-time payment infrastructure was designed from the ground up for a world where money should move as instantly as information does.
The implications of always-on, instant, final settlement extend far beyond consumer convenience. Real-time payments change cash flow dynamics for businesses, enable new financial product designs, and create infrastructure for use cases that were not practical under batch payment models.
How Real-Time Payments Work
Real-time payment transactions follow a simpler flow than card transactions because they are direct bank-to-bank transfers without the multi-party network intermediary structure of card payments.
The sender initiates a payment through their bank or a connected application. The sender’s bank validates the payment instruction and submits it to the RTP network. The network routes the payment to the recipient’s bank, which credits the recipient’s account immediately. Settlement between the banks occurs simultaneously through a central settlement mechanism. The entire process completes in seconds and the recipient has immediate access to the funds.
Settlement Finality
One of the defining characteristics of real-time payments is settlement finality. Unlike ACH transactions, which can be returned for days after the original settlement, RTP transactions are irrevocable once completed. The recipient’s bank guarantees availability of funds immediately upon receipt. This finality changes the risk profile of RTP payments significantly compared to ACH — there is no return risk for the recipient, but the sender has no recourse if they initiate a payment in error or are defrauded.
Around-the-Clock Availability
The RTP network and FedNow operate 24 hours a day, 7 days a week, 365 days a year. This always-on availability is a significant departure from ACH, which operates only on business days and has processing windows that exclude evenings and weekends. For businesses that need to move money on nights, weekends, or holidays — payroll emergencies, insurance claim disbursements, just-in-time supplier payments — real-time payment availability provides operational flexibility that batch systems cannot match.
The RTP Network vs. FedNow
The United States has two real-time payment rails operating in parallel, which is unusual by global standards where most markets have a single national real-time payment infrastructure.
The Clearing House RTP Network
The RTP network was launched by The Clearing House in 2017 and was the first real-time payment rail in the United States. It is owned by a consortium of large commercial banks and is available to financial institutions of all sizes that connect either directly or through a correspondent bank relationship. The RTP network supports transaction amounts up to one million dollars and offers messaging capabilities that allow senders to include remittance information with payments.
FedNow
The Federal Reserve launched FedNow in July 2023 as a public sector alternative to The Clearing House’s privately owned RTP network. FedNow is available to all Federal Reserve member institutions and was designed to accelerate adoption of real-time payments among smaller community banks and credit unions that may have had limited incentive to connect to a network owned by their large bank competitors. Both networks are interoperable at the settlement level, though direct messaging between RTP and FedNow connected institutions requires routing through correspondent arrangements.
Use Cases for Real-Time Payments
The combination of instant settlement, finality, and 24/7 availability makes RTP well suited for several payment use cases that batch rails handle poorly.
Business Disbursements
Insurance claim payments, payroll off-cycle runs, contractor payments, and marketplace seller payouts all benefit from real-time delivery. Recipients who previously waited days for ACH settlement can receive funds immediately, improving their cash flow and the payer’s competitive position.
Account Funding and Defunding
Financial services companies use real-time payments to allow customers to instantly move funds between their bank accounts and fintech applications. Instant account funding eliminates the friction of waiting for ACH transfers to settle before using a new account or topping up a wallet balance.
Request for Payment
The RTP network supports a Request for Payment message type that allows payees to send structured payment requests to payers. The payer receives the request through their bank and can approve payment with a single action, initiating an immediate transfer. This capability creates a real-time equivalent to electronic invoicing with integrated payment, with potential applications in B2B payments, bill payment, and point of sale scenarios.
Real-Time Payments and ACH
Real-time payments and ACH serve complementary rather than competing roles in most payment strategies. ACH remains more cost-effective for high-volume recurring payments where timing is predictable and batch processing is acceptable. Real-time payments command a premium per-transaction cost but provide value through immediacy and finality in use cases where timing and certainty matter.