~$800B/year in annual volume run rate, as of this comment. You can move up to $10M per value message for less than 5 cents, with a max 20 second time to completion SLA.

https://www.frbservices.org/resources/financial-services/fed...

(i am contributing subject matter expertise to policymakers to make offering FedNow rails to financial services customers a requirement of having a banking license, so I'm a bit biased; this is the only way we'll get off of closed payment rails like Zelle, slow open rails like ACH, or expensive faster legacy credit card rails)

> Are bill payments and bank to bank transfers now happening instantaneously?

Walmart is currently rolling it out. I expect others to start to as you see them surcharge credit card payments (US mobile phone providers, internet providers, etc). It's trivial to build into an app experience, with or without a partner like Plaid (for example).

> “It surprised me,” Henry said of adoption of Walmart’s first iteration of pay-by-bank, which is available online but hasn’t been marketed to customers. “It’s certainly surpassed our expectations of the amount of customers that have registered and actually use the payment type.”

> Walmart’s upgraded pay-by-bank offering will be rolled out in 2025. The transactions will occur over bank technology provider Fiserv’s NOW Network, which integrates with The Clearing House’s Real Time Payments network and the Federal Reserve’s FedNow. Until now, large retailers hesitated to launch real time payment options because many banks were not connected to an instant settlement system, meaning their customers would not be able to use the product. NOW Network aims to connect to as many banks as possible to reach 100% of deposit accounts by combining its own network with RTP and FedNow.

Walmart Plans Instant Bank Payments, Cutting Out Card Networks - https://news.ycombinator.com/item?id=41593450 - September 2024 (3 comments)

https://news.ycombinator.com/item?id=49632105 (additional citations)

https://news.ycombinator.com/item?id=49433164 (additional citations)

Payments Canada announces launch of Canada's Real-Time Rail (RTR) payment system