OK SB2158

Creates a state income tax deduction for membership expenses paid to health care sharing ministries (HCSMs), including medical expense sharing contributions and administrative fees, beginning tax year 2027

Exempts from Oklahoma taxable income any payments received from an HCSM to assist with medical expenses, provided no deduction was already claimed for those amounts

Defines qualifying HCSMs as 501(c)(3) nonprofit organizations that limit membership based on shared ethical or religious beliefs, facilitate voluntary medical expense sharing among members, and conduct annual independent audits

Requires HCSMs to provide members with quarterly statements of shared medical expenses and written disclaimers clarifying the organization is not insurance and payment assistance is voluntary

Applies to Oklahoma residents who have been active HCSM members for at least one month during the tax year; provisions expire if Oklahoma eliminates its individual income tax