Learn how to write a letter for declining a job offer that you have already accepted and use our template and example as a guide. Giving a timely response is the most polite.The quicker you respond, the quicker the employer can fill the role. One key is being polite at all times throughout the process. The biggest mistake you can make is giving up on the employer and the people you liked. Instead, send a nice thank you note to the hiring manager. Express your gratitude show the employer that you are grateful for the offer, and outline all the things you like about their company. 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. Keep the door open: Reiterate your interest in the company and their work. You can even ask that the team keep you in mind for future similar opportunities.