Complete a Notice of Deficiency (NOD) or Notice of Acceptance (NOA) then send to the employer or employer representative. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States.One of the most important forms you have to give to a new hire that walks into your office is an I9 form. 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. Employers are required to complete the Form I-9 and Employment Eligibility Verification for each new employee (both citizen and noncitizen).