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. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples.Click here for a quick guide on writing a stellar offer acceptance letter so you can make a positive first impression at your new 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. Find and download various legal forms, brochures, and self-help kits. If a form does not open, right-click the link to save it to your computer.