Tennessee Code Title 56. Insurance § 56-37-109

(1) Licensees may charge, in the case of the precomputed loan, a service charge in an amount equal to four percent (4%) of the total amount of the loan, which charge may be deducted in advance from the principal of the premium loan;  provided, that a licensee who contracts for the payment of interest on the balances from time to time outstanding, commonly referred to as a revolving or open-end account, shall be limited to contracting for a service charge not to exceed fifteen dollars ($15.00) and payable no more frequently than once per calendar year per premium loan account.  This service charge shall be in lieu of all other compensation for services, expenses, detriments or commitments directly incident to the loan, except those charges that are otherwise specifically provided in this chapter.  This charge is authorized and limited on the basis that it is generally reasonably related to the total costs and expenses that it is designed to cover, and in order to make the amount of the charges more certain and readily ascertainable by the registrants, their borrowers and the commissioner, and to that end registrants shall not be required to maintain detailed records with respect to the services, expenses, detriments or commitments covered thereby.  This charge shall not, however, be imposed on that portion of a loan used to pay any existing loan or part thereof owing by the same borrower or spouse or both to the same licensee or any affiliated lender;

(3) A premium finance agreement may provide for payment of collection costs, attorney's fees equal to fifteen percent (15%) of the outstanding indebtedness and any other charges that arose because one (1) party breached the contract;

(5) Licensees may also charge and collect from the insured, through regular billing procedure or otherwise, a handling charge pursuant to § 47-29-102 for a draft, check, electronic funds transfer, electronic check, card payment, or any other electronic payment, negotiable order of withdrawal, or like instrument drawn on a bank or other depository institution given by any person in full or partial repayment of a loan or other extension of credit if the instrument is not paid or dishonored by the institution;  provided, that a licensee:

(6) The charges referred to in this section must not be considered directly or indirectly in determining whether a violation of usury laws has occurred under a premium finance agreement.