Revenue and taxation; Oklahoma Rural Jobs Act; tax credits; capital investments; effective date.

HB 3978 creates tax credits for Oklahoma investors who fund "rural funds" that invest in small businesses located in rural areas. It allows investors to claim up to $15 million in annual state tax credits against their liability, provided the rural fund invests at least 100% of the capital in eligible businesses within three years. Eligible businesses must have fewer than 250 employees and operate primarily (60%+ payroll) in counties under 75,000 population or towns under 7,000 residents. The bill defines specific rules for qualifying investments, including restrictions on refinancing prior investments and limits on total funding per business ($6.5 million or 20% of the fund's capital). The tax credit program applies to capital investments certified after the bill's effective date.