Yale University broadened its undergraduate tuition guarantee to cover all families with incomes under $200,000, and pledged to cover total cost of attendance for households under $100,000. The change affects a large segment of U.S. households and aligns Yale with several peer institutions that have raised income thresholds in recent years. Yale framed the move as simplifying affordability and reducing complexity in financial-aid communications. University officials said the expansion increases clarity for prospective students and aims to widen socioeconomic diversity across the admitted class. The policy shift will alter financial-planning assumptions at peer institutions and affect yield modeling, especially among elite private colleges competing on price transparency and affordability.