Learn why you must write a job acceptance letter and how to write one with a professional touch through our tips and free samples. Dear Ms. Doe: I am writing to confirm my acceptance of your employment offer from April 1.The first thing you should put on your job acceptance letter is the date. Include it underneath the header close to the top of your letter. Dear Happy: It is with great pleasure that I accept your offer to fill the position of Acquisition Assistant. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples. Writing a job acceptance letter is a sign of professionalism. Check out these job acceptance letter samples to write a perfect acceptance letter Your Acceptance Letter should restate the terms, including everything agreed to.