Courtesy dictates that you acknowledge a written job offer, even if you are not ready to accept or decline it. Take note of the details of the offer.It's perfectly okay to reply with, "Thank you for the offer. I really appreciate it. 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. Employment Offer Letter Instructions. A job acceptance letter should convey your gratitude, confirm key details, express enthusiasm, and maintain a professional tone. Download Virginia Employment Acceptance Letter template, modify and send for signing using BoloForms Signature. What if I forgot to send a thank you letter on email after accepting a job offer via message?