In the opening paragraph, thank the recipient for considering you for the position and sending a job offer. Which, like you said, hasn't been signed.In the opening paragraph of the letter enter the job position that is being offered, then enter the name of the company that is the Employer. Someone in HR once told me to ALWAYS negotiate starting salary, everything is negotiable. Keep a copy of your acceptance letter for your files. MyUI Claimant Portal. I am writing to confirm my acceptance of your employment offer on April 20 and to tell you how delighted I am to be joining XYZ Corporation in Chicago. In the formal offer letter, provide comprehensive details about the position, compensation, benefits, and other pertinent terms. Additionally, I shall complete all employment and. At this point, any interviewing or seeking out other positions should stop.