Capping Prescription Costs Act of 2025

S 529, the Capping Prescription Costs Act of 2025, limits how much individuals and families must pay annually out-of-pocket for prescription drugs under most health insurance plans. Starting in 2026, it caps these costs at $2,000 per person or $4,000 per family per year, with automatic annual adjustments using the medical care inflation rate (CPI). This applies to both individual health plans (under the Affordable Care Act) and group health plans (like employer-sponsored coverage), as amended across multiple federal laws. The bill does not change drug prices but directly affects millions of health plan enrollees by setting a maximum annual cost for covered prescriptions.