This legislation primarily extends and modifies the enhanced premium tax credit under the Affordable Care Act for taxable years beginning after December 31, 2025, and before January 1, 2028. It revises the premium percentage tables, effectively lowering the maximum percentage of income individuals must pay for health coverage. This includes extending eligibility for premium assistance to individuals with household incomes up to 600 percent of the federal poverty line. Additionally, the bill aims to improve risk adjustment methodologies for Medicare Advantage plans starting in 2026. It mandates the use of two years of diagnostic data and excludes diagnoses obtained solely from chart reviews and health risk assessments. The Secretary is also required to evaluate and fully account for differences in coding patterns between Medicare Advantage plans and traditional Medicare. A significant portion of the bill addresses fraudulent enrollment practices in qualified health plans offered through Exchanges. It establishes new civil penalties for agents and brokers who provide incorrect information due to negligence (ranging from $10,000 to $50,000 per individual ) or knowingly provide false information (up to $200,000 per individual ). Criminal penalties, including imprisonment for up to 10 years, are also introduced for knowing and willful fraud. To enhance consumer protection, the bill requires the Secretary to establish a verification process for agent- or broker-assisted enrollments in federal Exchanges by January 2028. This process mandates agent consent documentation, delays commission payments until enrollment inconsistencies are resolved, and ensures timely consumer notification of enrollment changes. Consumers must also have access to their account information and be able to cancel unauthorized activity. Furthermore, the bill grants the Secretary authority to regulate field marketing organizations and third-party marketing organizations involved in the “chain of enrollment.” These organizations and agents/brokers must adhere to criteria such as acting in the enrollee's best interest, reporting agent terminations, and meeting marketing requirements to prevent misleading practices. Finally, the Secretary must implement a process for periodic audits of agents and brokers, based on complaints or suspicious patterns, and share audit results with State insurance departments to combat fraud.