US SB2057

Requires the Treasury Secretary to establish a program by January 1, 2028, allowing uninsured taxpayers to check a box on their federal tax return consenting to have their information shared with health insurance Exchanges to determine eligibility for Medicaid, CHIP, or subsidized marketplace coverage

Automatically enrolls consenting individuals into zero-premium health plans if they qualify for insurance affordability programs and do not opt out or select a different plan during a special enrollment period triggered by filing their tax return

Modernizes income eligibility determinations by allowing states to use prior-year tax return data for applications filed January through April and requiring states to accept SNAP and TANF eligibility findings as proof of Medicaid/CHIP eligibility for children and expansion adults

Creates a "safe harbor" protecting taxpayers from premium tax credit repayment if their advance credits were consistent with income reported on their tax return or determined by the Exchange

Expands data-sharing infrastructure by granting insurance affordability programs access to the National Directory of New Hires and employer-sponsored coverage databases, with appropriations for information technology development and operations