Contract law: Excuses for non-performance - Accord and satisfaction / Rights of third parties: Privity of contract

Accord and satisfaction is a contract law concept about the purchase of the release from a debt obligation. It is one of the methods by which parties to a contract may terminate their agreement. The release is completed by the transfer of valuable consideration that must not be the actual performance of the obligation itself. The accord is the agreement to discharge the obligation and the satisfaction is the legal "consideration" which binds the parties to the agreement. A valid accord does not discharge the prior contract; instead it suspends the right to enforce it in accordance with the terms of the accord contract, in which satisfaction, or performance of the contract will discharge both contracts (the original and the accord). If the creditor breaches the accord, then the debtor will be able to bring up the existence of the accord in order to enjoin any action against him.

If a person is sued over an alleged debt, that person bears the burden of proving the affirmative defense of accord and satisfaction.

The doctrine of privity of contract is a common law principle which provides that a contract cannot confer rights or impose obligations upon any person who is not a party to the contract.

The premise is that only parties to contracts should be able to sue to enforce their rights or claim damages as such. However, the doctrine has proven problematic because of its implications for contracts made for the benefit of third parties who are unable to enforce the obligations of the contracting parties. In England and Wales, the doctrine has been substantially weakened by the Contracts (Rights of Third Parties) Act 1999, which created a statutory exception to privity (enforceable third party rights).