The starting paragraph should always begin with your acceptance of the job offer letter. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples.A job acceptance letter lets you outline the details of the job so that you are clear about your role in the company prior to your joining. 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. I am delighted to accept your offer and very excited to begin this journey. I have read and understood the provisions of this offer of employment, and I accept the above conditional job offer. Congrats on the job offer! Write an job acceptance letter to confirm your commitment professionally. Specify your starting date. To avoid any misunderstandings, re-confirm your start date in the acceptance letter.