Learn what an acceptance letter is, see what to do before writing one, discover how to accept a job offer in a letter, and review examples for 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 why you must write a job acceptance letter and how to write one with a professional touch through our tips and free samples. 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. Subject: Job offer Body: Dear Sir or Madam, I am delighted to accept the job offer you recently made to me. I look forward to starting work. After careful consideration, I am pleased to accept your offer. State how eager you are to start working for the company. Mention the proposed start date.