Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples. LegalZoom provides you with a simple job acceptance letter sample that you can use anytime from anywhere.Letter for Social Security Number Application Form. Offer Letter (Recommended) – After a job offer has been made and accepted, an offer letter may be completed and given to the new hire. Learn why you must write a job acceptance letter and how to write one with a professional touch through our tips and free samples. I hope to cross paths with you again in the future. Sincerely,. Utah law requires employers to report any wages covered under the Utah Employment Security Act and the reason you are not working.