Banks and credit unions of all sizes can sign up and use this tool to instantly transfer money for their customers, any time of the day, on any day of the year. When fully available, instant payments will provide substantial benefits for consumers and businesses, such as when rapid access to funds is useful, or when just-in-time payments help manage cash flows in bank accounts.
"The Federal Reserve built the FedNow Service to help make everyday payments over the coming years faster and more convenient," said Federal Reserve Chair Jerome Powell.
https://www.federalreserve.gov/newsevents/pressreleases/other20230720a.htm