Clearly state your acceptance of the job offer. Make the opening sentence relevant and memorable.Research the company and tailor each letter to the specific job. 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. An acceptance letter is a professional way to confirm your acceptance of the job offer and express your gratitude to the hiring manager. 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. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples. Please let me know if there is any more information you need from me before my start date. Sincerely,. After emailing the acceptance letter, receive a start date from the recruiter. Congrats on the job offer!