Top high-yield savings accounts offered up to 5.00% APY as of Aug. 20, 2026, compared with the FDIC’s 0.38% national average, while certificates of deposit (CDs) offered rates as high as 4.50% as of Aug. 19. Among the largest U.S. banks measured by FDIC figures, CD APYs reached 4.25% as of Aug. 20, with terms from four to 15 months. American Express offered 4.25% for 10 months with no minimum deposit, while Citibank and Capital One each offered 4.00% for 12 months. Large banks can appeal to customers seeking brand recognition, consolidated accounts, broader product choices or relationship-rate bonuses, but online and smaller institutions often offer higher yields. CDs provide fixed returns in exchange for locking money away for a set term and typically charging an early-withdrawal penalty. Savers should compare APYs, minimum deposits, fees, access restrictions, early-withdrawal terms and FDIC or NCUA insurance.