Tax; modifying certain income tax rates for certain tax years. Effective date.

SB 290 modifies Oklahoma's individual income tax rates for tax years beginning in 2024 and later. It sets new tax brackets: for single filers, 0.25% on the first $1,000, rising to 4.75% on income over $6,250; for joint filers, 0.25% on the first $2,000, rising to 4.75% on income over $10,650. The bill directly affects all Oklahoma residents and nonresidents who file state income tax returns. These rate changes replace previous brackets and take effect starting with the 2024 tax year.