An employer may withdraw a job offer if the applicant does not successfully pass the drug and alcohol screen. Inform applicants that a job offer may be withdrawn if certain contingencies are not met.Can an employer legally withdraw a prospective employee's job offer? In short, the answer is yes. Spell out those contingencies in your employment application and offer letter. Revoking an employment offer is not illegal in most cases, but the decision should be given a full legal review before contacting the candidate. As a general rule, an offer may be rescindedits just an offer, not a contractin fact, it may be withdrawn after acceptance too! If the job offer is withdrawn, as provided in section. 181.953, subdivision 11, the employer shall inform the job applicant of the reason for its action. If an employers fires an employee, that is essentially a withdrawal of the job offer received years ago.