In this article, we discuss how to write a job offer acceptance letter and also present a template and sample letter to help you get started. A written, official acknowledgment of your acceptance of the job offer.A formal letter that tells your future employer that you have accepted the job offer is known as a job acceptance letter. If you accept this offer, you will need to complete tax and other employment forms (in person) to be placed on payroll on or before your first day of work. Employment Offer Letter Instructions. 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. Hi, hiring manager names, I am writing to you today because I made a regrettable mistake. Otherwise, three days at the outside, based on the offer letter. Michigan State University offers a variety of benefits. "You've offered me a position I am excited about, and while I haven't signed a contract yet I already agreed verbally to accept your offer.