Be polite, don't make up reasons. Just tell them you regret to inform them that you can't take the position.Go back to the companies you were waiting to hear from and inform them you are no longer interested in the position as you have accepted another offer. Had a change of heart about a new job? This article will teach you how to decline a job offer you already accepted. To create an applicant account, go to Career Pages website and click on Sign In. Under the Sign In button, click Don't have an account? Do you want to withdraw your application politely? Get application withdrawal tips and a sample email to withdraw job applications. 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. I've accepted 7 job offers since graduating.