A review of Tennessee case law, published and unpublished, demonstrates that the affirmative defense of accord and satisfaction is asserted far more often than it is successful. Nevertheless, it can be effective. Whether an accord and satisfaction defense is successful is dependent on the unique facts of each case, and, of course, on the reaction of the particular judge or jury to those facts.
The defense is used mostly in commercial litigation, though it pops up in tort cases from time to time in disputes about settlement agreements. Since it is an affirmative defense, the burden of proving it is on the defendant. As well, whether there has been an accord and satisfaction is a jury question (provided that the defense survives summary judgment).
The defense of accord and satisfaction arises where a party who owes some obligation or debt to another gives something other than, or less than, what the party who is owed the obligation believes it is entitled to receive. The giving of the something other than, or less than, is the accord part of the defense. The giving part of the defense, or the accord part, is usually a cinch to prove.