A cardholder agreement provides the terms and conditions of a credit card account. This agreement is required by federal law as a consumer disclosure. It also represents a binding agreement between card issuers and their customers. It must include the annual percentage rate, the monthly minimum payment formula, annual fees and dispute resolution processes. Changes in the cardholder agreement can be made, with written advance notice, at any time by the issuer. Cardholders have the right to cancel their cards if they do not accept such changes in terms, and pay off existing balances under the previous account terms.