Modify income tax deductions for 529 plans and ABLE accounts

This bill modifies Ohio's state income tax rules to allow residents to deduct contributions made to 529 college savings plans and ABLE disability savings accounts. It sets a yearly deduction limit of $8,000 for married couples filing jointly or $4,000 for individual filers, with any unused amount carried forward to future years. The legislation also adjusts how refunds and non-qualified withdrawals are taxed and includes a mechanism to automatically update the annual contribution limits based on inflation.