The Penn Wharton Budget Model published an analysis on May 19, 2025, predicting that the proposed GOP tax and spending bill would adversely affect low-income Americans, with the bottom 20% facing a hit of approximately $1,035 in 2026 and a lifetime loss averaging $28,000, highlighting the regressive fiscal impacts of the proposed policy.

The Penn Wharton Budget Model released a report titled 'U.S. Fiscal Policy: Lowering Debt, Growing the Economy, and Enhancing Social Insurance' that outlines policy proposals aimed at reducing national debt and enhancing social insurance. The report includes measures such as near‐universal health insurance, lower premiums achieved partly through increased enrollment of immigrants, and a shift in health care spending from government to the private sector.

On June 22, 2018, the Penn Wharton Budget Model hosted its first-ever Spring Policy Forum on Capitol Hill, gathering congressional staffers, academics, business leaders, and media professionals to discuss nonpartisan, research-based approaches to public policy and government transparency.

The Penn Wharton Budget Model (PWBM) defended its infrastructure analysis following formal criticisms from the White House, which challenged the model's transparency and parameter assumptions. PWBM highlighted its open publication of methods and detailed rebuttal of the White House’s claims, asserting that its methodology was both up-to-date and transparent.