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 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.Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples. Mention following things in your mail: Sample Reply: Thank you so much for offering me the job.