How To Write A New Position Proposal . Explain right away that you need a new position and name the position that you need. Briefly discuss the budget and how funds will be used. 12+ Job Proposal Templates MS Word, Excel & PDF Formats, Samples from www.wordpdftemplates.com Before you start writing the letter, make sure you have a way to define the position you're outlining. Include an appendix if you are providing historical sales or customer service. Basic proposal letters are structured in a strategic order in order to break up the information and maintain the client’s attention.