Revenue and taxation; income tax; earned income tax credit; effective date.

HB 2229 increases Oklahoma's earned income tax credit (EITC) from 5% to 10% of the federal EITC amount for eligible residents. It directly affects low-to-moderate-income Oklahoma taxpayers who qualify for the federal EITC, allowing them to claim a larger state credit. The bill specifies that any excess credit beyond state tax liability will be refunded, and the maximum credit is calculated based on Oklahoma adjusted gross income relative to federal income. The change takes effect for tax years beginning on or after January 1, 2026.