WIC serves more than 50% of all infants born in the U.S. The goal of this study is to build a forecasting model to estimate national WIC funding needs under various policy and economic conditions through fiscal year 2027. The model will also be designed to allow for updates to forecast funding needs for future years. The research team will (1) identify key variables driving funding needs (e.g., eligible population size, demographic/socioeconomic indicators, adjunctive eligibility program participation, and food package redemption data); (2) Compile and analyze historical data for these variables to inform a realistic model structure; (3) Use the model to simulate funding scenarios (e.g., changes to Cash Value Benefit amounts, eligibility rules, or proposed funding levels) and estimate WIC’s ability to fully serve eligible populations through FY2027; and 4) Apply model findings to develop policy recommendations and support stakeholder engagement and policymaker education to ensure WIC funding meets demand.