¬ 24-Hour Hotline - 1-800-282-1784. Note: This booklet contains instructions for Ohio personal and school district income taxes.OVERVIEW. In February 2017, the state of Ohio adopted updated Ohio. Learning Standards (OLS) for English language arts and math. I can use a model to add and subtract money and express my answer in a decimal notation. Use Schedule A (Form 1040) to figure your itemized deductions. Submit form IT 4 to your employer on or before the start date of employment so your employer will withhold and remit Ohio income tax from your compensation. The Ohio Department of Education sent their revisions back out for public comment in July 2016. Once again, the Advisory. Use fictitious names for forms, "fill in the blank" style or white-out personal information.