A job offer is supposed to bring relief after a long search, but that can be shortlived if the employer yanks the offer back. Below you'll also find a stepbystep action plan about what you can do if they find that their job offer has fallen through in this way.Can an employer legally withdraw a prospective employee's job offer? In short, the answer is yes. As a general rule, an offer may be rescindedits just an offer, not a contractin fact, it may be withdrawn after acceptance too! Revoking an employment offer is not illegal in most cases, but the decision should be given a full legal review before contacting the candidate. An employee absolutely can walk away, without any legal repercussions, before they've formally started a job or at any point after starting a new job. An employer can cancel an offer between the time you accept and the time you start. If you had a job offer rescinded, you might have claims for breach of contract, promissory estoppel, or fraud.