A counter offer letter is a physical letter or email candidates send to an employer when they want to negotiate the terms of a job offer given to them. Learn what a counter offer letter is, common responses to one and which elements to include in your response to candidates.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. How to Write a Counter Offer Letter. Learn how to write a professional job offer letter acceptance mail reply with joining date with an easy format and practical samples. This blog guides salary negotiation, offering 20 tailored email examples for various scenarios. Edit, sign, and share letter counterproposal online. No need to install software, just go to DocHub, and sign up instantly and for free.