Be polite, don't make up reasons. Just tell them you regret to inform them that you can't take the position."I'm very sorry but something has just come up that prevents me from taking the position with your company that you offered me. Turning down a job offer after you already accepted it should be done gracefully. A sample letter declining a job offer after accepting it can take many forms, but as a rule you should keep it short, to the point, and completely professional. Access to Forms The Superior Court of Orange County offers several options to assist the public in completing court forms. Complete the transfer out request form and upload a copy of your acceptance letter. Counselor gives original withdrawal form to the Admissions Office to officially withdraw the student from school. "Unfortunately, I'm writing to rescind my job acceptance. " "I'm afraid I'll have to withdraw my job offer acceptance.