"Starting in 2024, savers can roll unused money from 529 plans over to Roth individual retirement accounts free of income tax or tax penalties. Among other limitations, the 529 account must have been open for 15 years and account holders can’t roll over contributions made in the last five years. Rollovers are subject to the annual Roth IRA contribution limit, and there’s a $35,000 lifetime cap on 529-to-Roth transfers."
