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.How do I write a simple acceptance letter? What is a formal acceptance of employment? Learn why you must write a job acceptance letter and how to write one with a professional touch through our tips and free samples. Employment Offer Letter Instructions. Here is a sample acceptance letter that you would print out and send through the mail. Be sure to print on quality white paper. If you are sending a new email, ensure that you clearly indicate that in the subject line. For example, you can say, "Accept the Job Offer.