Find and download Nevada tax forms, including resources and guidelines to ensure accurate and timely filing with the Nevada Department of Taxation. Sales tax is a tax on the sale of goods and services within Nevada.You must first download and save both the Employment Application and the. Supplemental Employment Questionnaire to your computer before filling in the forms. I have filled-up the application form as per given instructions. Use Form 2848 to authorize an individual to represent you before the IRS. See Substitute Form 2848, later, for information. Submit applications, with payment, to either office of the NSCB. Note: Please fill in the Form in capital letters.