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. An example of an acceptance letter is: Dear Ms. Anderson,.I'm writing in response to your requested salary upgrade. Struggling to write a counter offer letter? I appreciate the time and effort you have taken to consider my requests and negotiate the offer. In each paragraph, clearly state the original offer, your counteroffer, and why you believe the counteroffer is appropriate. Negotiating and writing counter offer letters can feel stressful. Here's a guide to getting the best results while countering a job offer. You can negotiate and offer "anytime" before you accept and start. As long as you have not accepted the offer letter, the whole 'negotiation' is still in play.