The holder of the contract shall not charge, collect, or receive a finance charge which exceeds the dollar amount shown pursuant to subdivision (b) of Section 1803.3, except to the extent (a) caused by the holder's receipt of one or more payments under a contract which provides for determination of the finance charge or a portion thereof on the 365-day basis at a time or times other than as originally scheduled, whether or not the parties enter into an agreement pursuant to Section 1807.1, (b) permitted by paragraph (2), (3), or (4) of subdivision (c) of Section 226.17 of Regulation Z, or (3) permitted by Section 1805.8.
No annual fee or charge shall be made in any retail installment contract.
Ca. Civ. Code § 1805.1