There are smart ways to handle a difficult career circumstance here is expert input if this happens to you. Be polite, don't make up reasons.Just tell them you regret to inform them that you can't take the position. If you have made up your mind then write a simple letter telling them that you have decided to withdraw your acceptance letter. Example withdrawal of employment offer followup letter. Declining an accepted job offer is a tough situation. Here's the how-to guide on how to decline a job offer you already accepted. Draft a formal rescission letter. Employment Offer: Utah. Services for individuals and families jobs and public assistance.