In your acceptance letter, thank the hiring manager for the offer to work with the company. Indicate that you are happy to accept the terms of employment.You do not give notice until you have an actual job offer in hand, with all terms agreed and accepted, and have been given a start date. My employer is saying that I must give 30 days notice as per my offer letter and will not accept 2 weeks. I accepted a job offer through an email but I have not yet signed the contract. Is it possible to back out of the job. It would likely just make you ineligible for rehire if you do not provide 30 days notice. There's no legal requirement to give 2 weeks notice. Consider creating an offer letter template. Using the same template will save time and ensure every offer meets your legal standards.