"Thank you for your generous offer andinterest in me. However I've decided to ______ (e.g.Acting swiftly in declining a job offer ideally within 24 to 48 hours of receiving it is crucial. Craft your sentences with appreciation for the offer. 1. Let your employer know as soon as possible. Avoid letting your employer wait too long. Call the company and ask to speak to the hiring manager or employer. Need help drafting a job offer letter? "Can I decline a job offer I already accepted without 'burning bridges? I've received another job offer that I plan to accept at the end of my twoweek notice.