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. A written, official acknowledgment of your acceptance of the job offer.Provide your name, contact information, and instructions for accepting the offer. A sample letter offering a job contingent upon the results of a background check or other criteria. When accepting a job offer, let the company know you are grateful they took time out of their busy schedule to offer you a job. Be prompt in your response. I am pleased to inform you that I am accepting this position and excited for my start date. What is an offer letter in a job application process? Section 1 of the Form I-9 may be completed upon your acceptance of this job offer, but no later than your first day of employment. 64 votes, 34 comments.