Knowing how to accept a job offer is key. Thank the recruiter, review the offer and follow up with questions and a counter offer before accepting the offer.Write a subject line: Use a clear and professional subject line, such as "Acceptance of Job Offer" or "Confirmation of Job Acceptance". Begin the email with a concise subject line consisting of your name and the job title. Any acknowledgement is considered a legal acceptance. That said, most companies will not move forward until you sign the official letter. Write a short message explaining that you accept the offer and enclose a formal acceptance letter in the attachments. There is no involuntary servitude in California. You may back out of your contract and no one can enforce your performance. Offer letters are meaningless and they're meant to make you feel exactly as you do right now.