Several U.S. jurisdictions still impose financial penalties for not carrying health insurance despite the federal penalty ending in 2019. California, Massachusetts, New Jersey, Rhode Island, and Washington, D.C. enforce these mandates with fines based on flat fees or a percentage of household income, capped by bronze-level plan costs. Penalties vary, such as California's minimum $950 per adult or 2.5% of income, and New Jersey's monthly minimum of $695 per adult.