A sales letter is an important tool for shaping the way customers think of you. I am selling my business.When completing a bill of sale for business, you can use a template to ensure that all required components are included. Download Utah Sales Agreement template, modify and send for signing using BoloForms Signature. Have you ever tried (or been tasked with) writing a sales letter? Name (last, first, middle initial; or business name). Forms are available online at tax.utah. I certify, to the best of my knowledge, that the above information is correct. NOTE: You do not need to file this form if you register your business online. Online registration allows registration with the Tax Commission,.