Tennessee Code Title 47. Commercial Instruments and Transactions § 47-18-138

(1) “Billing cycle” means the defined period of time between billing statements or invoices on which a consumer's payment amount for services is based under an agreement or contract for covered services;

(2) “Covered services” means telephone, cable television, internet, broadband services, or any combination of such services;  and

(3) “Service provider” means an entity, whether a for-profit, nonprofit, or government entity, that provides covered services to consumers for a fee.

(1) If the date of termination occurs within the first half ( 1/2 ) of a billing cycle, then the service provider may only bill the consumer for the remainder of that billing cycle and shall not bill the consumer for any subsequent billing cycle;  and

(2) If the date of termination occurs within the second half ( 1/2 ) of a billing cycle, then the service provider may bill the consumer for the remainder of that billing cycle and up to one (1) subsequent billing cycle.