The next US president will take office on Inauguration Day, January 20, 2025. This day marks the start of the new presidential term, with the swearing-in ceremony held at the U.S. Capitol in Washington, D.C., where both the president-elect and vice president-elect take their oaths. Inauguration Day occurs every four years on January 20 (or January 21 if January 20 falls on a Sunday).