A bill for an act relating to insurance coverage for prescription insulin drugs.

HF 658 requires most health insurance plans in Iowa to cap out-of-pocket costs for prescription insulin at $25 per prescription for up to a 31-day supply. It applies to all covered insulin types (rapid-acting, short-acting, intermediate-acting, and long-acting) and affects people with diabetes who have insulin-covered plans. The cap takes effect for new or renewed policies starting January 1, 2026, but excludes specialized coverage like Medicare supplements, dental, or workers’ compensation plans. Plans may offer lower costs than $25 but cannot exceed this limit. This directly reduces financial burdens for Iowans managing diabetes through their insurance.