Mortgage borrowers gained a new option on April 22, 2026, when the Federal Housing Finance Agency, the FHA, Fannie Mae, and Freddie Mac simultaneously cleared VantageScore 4.0 for use in home loan underwriting. The move breaks a decades-long period in which FICO was the only credit scoring model accepted by the government-sponsored enterprises and the FHA for single-family mortgage decisions. Separately, the Enterprises plan to begin publishing historical FICO 10T credit score data this summer, setting up a phased adoption of that model as well.
What is verified so far
The FHFA confirmed on April 22, 2026, that it coordinated steps for Fannie Mae and Freddie Mac to accept VantageScore 4.0, while the FHA simultaneously permitted the model for FHA-insured loans. The agency framed the action as opening credit score competition in homebuying for the first time at this scale. Both VantageScore 4.0 and FICO 10T had already received formal validation from the FHFA in a prior announcement, establishing the regulatory foundation for each model’s eventual deployment.
The Enterprises expect to publish historical FICO 10T scores during summer 2026, according to the FHFA’s credit score policy page. That data release is designed to let lenders, investors, and loan servicers study how the newer FICO model would have scored borrowers over past cycles. Adoption of FICO 10T by Fannie Mae and Freddie Mac is expected to follow the summer data publication, though no firm compliance date has been set publicly.
The path to this point was not linear. The FHFA changed the implementation sequencing for both credit score models and credit reporting requirements at least once after the initial validation announcement. Those adjustments separated the VantageScore 4.0 rollout from the FICO 10T timeline, allowing VantageScore to go live first while FICO 10T enters a data-sharing phase. The sequencing shift means lenders now face a staggered transition rather than a single switchover date.
What remains uncertain
No FHFA release to date quantifies how many additional borrowers might qualify for a mortgage under VantageScore 4.0 compared with the legacy FICO models. Borrowers with thin credit files or recent credit events are widely expected to score differently under the newer models, but the Enterprises have not published approval-rate projections or demographic breakdowns tied to the change. Without that data, the practical reach of the policy shift is difficult to measure.
The timeline for full FICO 10T adoption also carries uncertainty. The Enterprises have stated they expect to adopt the model after summer 2026, but the FHFA has already revised the implementation schedule once. Whether lenders will be required to deliver FICO 10T scores alongside VantageScore 4.0 by a specific date, or whether adoption will remain optional for a period, has not been spelled out in the primary releases reviewed. Internal costs for lenders to integrate dual-score systems, retrain underwriters, and update automated underwriting engines are also absent from the public record.
Warren Cohen is a finance writer based in Phoenix, Arizona, covering personal finance topics including credit, banking, and beginner investing. He earned his degree in business administration from Arizona State University and began his career working in consumer finance, where he gained direct experience with lending and credit systems. He now writes for personal finance websites and fintech platforms, focusing on clear, practical content that helps readers make informed financial decisions.
