Giving a timely response is the most polite. The quicker you respond, the quicker the employer can fill the role.1. Decline the offer in WRITING. This blog post will teach you how to turn down a job offer with 15 examples and templates that will make declining a job offer an ease. Welcome to the Adjunct Faculty Guidebook, which provides general information about Pima Community. College, campus services, and teaching. 1. Let your employer know as soon as possible. Avoid letting your employer wait too long. Some positions may require a resume and cover letter or additional supplemental information. Decline a job offer politely with our job offer rejection letter template.