Core Insights - Millions of Americans may have opted out of health insurance after the expiration of COVID-era federal subsidies, leading to potential penalties in certain states [1] - Four states and Washington DC continue to impose penalties for lacking health insurance, aimed at encouraging healthy individuals to purchase coverage [1][3] Penalty Structure - The penalties, referred to as "shared responsibility payments," are designed to ensure health coverage is available and affordable for all [2] - Individuals can avoid these fines by obtaining an exemption or purchasing health insurance [2] State-Specific Penalties - California imposes a penalty of $950 per adult or 2.5% of gross income over the filing threshold, whichever is higher, with family penalties reaching up to $2,850 [4] - Massachusetts applies income-based penalties capped at the lowest-cost ConnectorCare plan or the lowest-cost individual bronze premium from the ACA marketplace [4] - New Jersey's penalties are based on income and family size, with a minimum of $695 for one adult and a maximum of $4,908 per month [4] - Rhode Island charges a flat fee of $57.92 per adult and $28.96 per child, or 2.5% of modified adjusted gross income, capped at the average monthly cost of a bronze level health plan [4] - Washington DC imposes a tax of $795 per adult and $397.50 per child, with total payments capped at the bronze plan premium rate [4]