On March 15, the Federal Reserve announced that the FedNow Service will launch in July 2023. FedNow will “facilitate nationwide reach of instant payment services by financial institutions—regardless of size or geographic location—around the clock, every day of the year.” But what exactly is the FedNow Service, and what does it do? In this article, we describe FedNow at a high level, offer answers to common and anticipated questions about the service, and explain how it will support the provision of instant payment services in the United States.