Be sure to use proper spelling and grammar at all times. A contract acceptance letter is a formal letter that confirms that you have accepted the terms and conditions.Here's what you should know. The Offer Letter Agreement does not provide for a term of employment. Explain that you accepted a job offer, that the acceptance was in writing, and say who sent you the offer. Dear Todd: Congratulations! 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. The following forms are available for downloading, printing and completing. If you are asked for money to fill out and approve your application, do not send any money. Contract acceptance.