State your counteroffer: In the body of the letter, clearly state the company's offer and your counteroffer and why you think it is justified. When countering a salary offer via email, be professional and polite.Express gratitude for the offer and highlight your qualifications and value. Learn what a counter offer letter is, common responses to one and which elements to include in your response to candidates. A job acceptance letter should convey your gratitude, confirm key details, express enthusiasm, and maintain a professional tone. The first thing you should put on your job acceptance letter is the date. Include it underneath the header close to the top of your letter. Struggling to write a counter offer letter? I would suggest using a custom composed personal email for negotiating salary, not using a sample. ;) Okay, now what you probably meant.