A health share (also known as a health care sharing ministry or medical cost-sharing program) is an alternative to traditional health insurance where members contribute a monthly amount to a shared fund that helps cover medical expenses. These programs are typically faith-based and require members to follow certain lifestyle guidelines, such as refraining from smoking or excessive drinking.

Unlike traditional insurance, health shares are not legally required to cover pre-existing conditions, preventive care, or essential health benefits under the Affordable Care Act (ACA). Instead, they operate on a voluntary basis, where members submit medical bills, and the organization distributes funds to help pay for eligible expenses.