Learn why you must write a job acceptance letter and how to write one with a professional touch through our tips and free samples. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples.Hello Employer, Thank you for the offer of employment, I accept. Please let me know what next steps will be. 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. State how eager you are to start working for the company. Mention the proposed start date. Our Employment Offer Letter template helps you easily create a letter for the next employee you hire. You will be asked to fill out an application.