Paper employer withholding and school district withholding forms are no longer available. Electronic filing has been mandatory since 2015.As an employer, you must withhold Ohio income tax from your employees' wages. Complete el Formulario W-4 para que su empleador pueda retener la cantidad correcta del impuesto federal sobre los ingresos de su paga. To amend your payroll withholding account, you must use Form 11A - Amended Employer's Municipal Tax Withholding Statement. 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. El programa de VITA ha operado por más de 50 años.